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Question 1
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A 32-year-old woman presents to the antenatal clinic at 40-weeks gestation for her first pregnancy. She reports no contractions yet. Upon examination, her abdomen is soft and a palpable uterus indicates a term pregnancy. The cervix is firm and dilated to 1 cm, with the foetal head stationed 1 cm below the ischial spines. The obstetrician performs a membrane sweep and decides to initiate treatment with vaginal prostaglandins. What is the most probable complication of this procedure?
Your Answer: Uterine hyperstimulation
Explanation:When inducing labour in a patient who is past her due date, the main complication to watch out for is uterine hyperstimulation. The recommended method for inducing labour according to NICE guidelines is vaginal prostaglandins, which can be administered as a gel, tablet or slow-release pessary. A membrane sweep may also be performed alongside this. Vaginal prostaglandins work by ripening the cervix and stimulating uterine contractions. If uterine hyperstimulation occurs, tocolytic agents can be given to relax the uterus and slow contractions. It’s important to note that a breech presentation is not a complication of induction of labour, especially in cases where the foetus is stationed in the pelvis below the ischial spines. Chorioamnionitis, which is inflammation of the foetal membranes due to bacterial infection, is a risk during prolonged labour and repeated vaginal examinations, but it is not the main complication of induction of labour. Cord prolapse is also a possible complication, but it is more common when the presenting part of the foetus is high, which is not the case in this pregnancy where the foetal head is stationed 1 cm below the ischial spine.
Induction of labour is a process where labour is artificially started and is required in about 20% of pregnancies. It is indicated in cases of prolonged pregnancy, prelabour premature rupture of the membranes, maternal medical problems, diabetic mother over 38 weeks, pre-eclampsia, obstetric cholestasis, and intrauterine fetal death. The Bishop score is used to assess whether induction of labour is necessary and includes cervical position, consistency, effacement, dilation, and fetal station. A score of less than 5 indicates that labour is unlikely to start without induction, while a score of 8 or more indicates a high chance of spontaneous labour or response to interventions made to induce labour.
Possible methods of induction include membrane sweep, vaginal prostaglandin E2, oral prostaglandin E1, maternal oxytocin infusion, amniotomy, and cervical ripening balloon. The NICE guidelines recommend vaginal prostaglandins or oral misoprostol if the Bishop score is less than or equal to 6, while amniotomy and an intravenous oxytocin infusion are recommended if the score is greater than 6.
The main complication of induction of labour is uterine hyperstimulation, which refers to prolonged and frequent uterine contractions that can interrupt blood flow to the intervillous space and result in fetal hypoxemia and acidemia. Uterine rupture is a rare but serious complication. Management includes removing vaginal prostaglandins and stopping the oxytocin infusion if one has been started, and considering tocolysis.
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This question is part of the following fields:
- Obstetrics
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Question 2
Correct
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An overweight 56-year-old Caucasian male patient attends for the results of a health check arranged by your surgery. He smokes 12 cigarettes a day and is trying to cut down. Alcohol intake is 8 units per week. He tells you that his father underwent a ‘triple bypass’ aged 48 years. His results are as follows: Total cholesterol : HDL ratio 6 HbA1c: 39 mmol/mol Urea and electrolytes: normal Estimated glomerular filtration rate (eGFR): 97 ml/min/1.73m2 Liver function tests: normal Blood pressure (daytime average on 24-h ambulatory monitor): 140/87 Body mass index (BMI): 25 His QRISK2 10-year cardiovascular risk is calculated at 22.7%. In addition to assisting with smoking cessation and providing lifestyle advice, what is the most appropriate means of managing his risk?
Your Answer: Commence atorvastatin 20 mg once a night and start a calcium channel blocker, review after three months
Explanation:This patient has high cholesterol and hypertension, both of which require immediate attention.
Medications:
The patient will start taking atorvastatin 20 mg once a night to address their high cholesterol. After three months, their cholesterol and full lipid profile will be rechecked, and the therapy will be titrated to maintain a total cholesterol of <5. If necessary, the dose may be increased to 40 mg once a night.For hypertension, the patient will start taking a calcium channel blocker as they are over the age of 55. The blood pressure will be monitored regularly, and if it rises above 150/90, additional treatment may be necessary.
Monitoring:
The patient’s cholesterol and full lipid profile will be rechecked after three months of treatment with atorvastatin. The aim is to see a 40% reduction in non-HDL cholesterol. If this is not achieved, a discussion of adherence, lifestyle measures, and the possibility of increasing the dose will take place.The patient’s blood pressure will also be monitored regularly. If it rises above 150/90, additional treatment may be necessary.
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This question is part of the following fields:
- Cardiology
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Question 3
Correct
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A 50-year-old man undergoes a workplace medical and has an ECG performed. What is the electrophysiological basis of the T wave on a typical ECG?
Your Answer: Ventricular repolarisation
Explanation:The T wave on an ECG indicates ventricular repolarisation and is typically positive in all leads except AvR and V1. Abnormal T wave findings may suggest strain, bundle branch block, ischaemia/infarction, hyperkalaemia, Prinzmetal angina, or early STEMI. The P wave represents atrial depolarisation, while atrial repolarisation is hidden by the QRS complex. The PR interval is determined by the duration of conduction delay through the atrioventricular node. Finally, the QRS complex indicates ventricular depolarisation.
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This question is part of the following fields:
- Cardiology
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Question 4
Correct
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A 68-year-old woman presents with acute lower back pain of one week duration. The pain is localized to her lower back, rates 9/10 in severity, and has not improved with paracetamol and ibuprofen. She has a medical history significant for stage 3 chronic kidney disease, hypertension, osteoporosis, and hypercholesterolemia. The patient has a 30-pack-year smoking history and is currently taking bendroflumethiazide, amlodipine, alendronic acid, vitamin D supplements, calcium tablets, omeprazole, and atorvastatin. On physical examination, the patient has lumbar lordosis, decreased mobility, and spasm of the paravertebral muscles. Tenderness to palpation is noted at L4-L5. A previous DEXA scan taken 6 months ago shows a T-score of −3.0 in the lumbosacral spine and −3.2 in the left hip. What is the recommended first-line investigation?
Your Answer: X-ray spine
Explanation:X-ray of the spine is the first-line investigation for a suspected osteoporotic vertebral fracture, while CT spine, MRI spine, repeat DEXA scan, and skeletal survey are not indicated or necessary.
Understanding Osteoporotic Vertebral Fractures
Osteoporotic vertebral fractures are a common consequence of osteoporosis, a condition where bones gradually decrease in bone mineral density, leading to an increased risk of fragility fractures. These fractures often present with acute onset back pain, but patients can also be asymptomatic. Osteoporosis is more prevalent in females than males, with a male-to-female ratio of 1:6. Advancing age is a major risk factor for osteoporotic fractures, with women over 65 and men over 75 being at increased risk. Other risk factors include a previous history of fragility fractures, frequent or prolonged use of glucocorticoids, history of falls, family history of hip fracture, alternative causes of secondary osteoporosis, low BMI, tobacco smoking, and high alcohol intake.
Patients with osteoporotic vertebral fractures may present with acute back pain, breathing difficulties, gastrointestinal problems, loss of height, kyphosis, and localised tenderness on palpation of spinous processes at the fracture site. X-ray of the spine is the first investigation ordered, which may show wedging of the vertebra due to compression of the bone. Other investigations such as CT spine and MRI spine may be used to visualise the extent/features of the fracture more clearly and differentiate osteoporotic fractures from those caused by another pathology.
To assess the likelihood of future fractures, risk factors are taken into account, and a dual-energy X-ray absorptiometry (DEXA) scan should be considered. The FRAX tool or QFracture tool can be used to estimate the 10-year risk of a fracture. These tools require the clinician to input patient information into a form, which is then used by the programme to calculate the risk. Understanding osteoporotic vertebral fractures and their risk factors is crucial in preventing and managing this condition.
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This question is part of the following fields:
- Musculoskeletal
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Question 5
Correct
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A 16-year-old girl is brought to the Emergency Department after overdosing on alcohol and paracetamol. She was discovered by her friend, unconscious in a local park, after sending a concerning text message. Her parents were both at work at the time. Upon regaining consciousness, she expresses embarrassment and explains that she had an argument with her boyfriend, now regrets her actions, and wishes to return home. All of her blood tests come back normal and she is deemed medically stable.
What is the best course of immediate action for her management?Your Answer: Admit onto the paediatric ward to await an urgent Child and Adolescent Mental Health Services (CAMHS) assessment prior to discharge
Explanation:Options for Discharging a Child with Suicidal Ideation
When a child presents with suicidal ideation, it is important to carefully consider the best course of action for their safety and well-being. Here are some options for discharging a child with suicidal ideation:
1. Admit onto the paediatric ward to await an urgent Child and Adolescent Mental Health Services (CAMHS) assessment prior to discharge.
2. Start fluoxetine 10 mg and discharge home. However, antidepressants should only be considered following full assessment and recommendation by a child and adolescent psychiatrist.
3. Discharge home with outpatient CAMHS follow up within a week. This option is only appropriate if the child is not at high risk of deliberate self-harm/attempted suicide.
4. Discharge home with advice to book an urgent appointment to see their GP the same day. This option is only appropriate if the child is not at high risk of deliberate self-harm/attempted suicide.
5. Start citalopram 10 mg and discharge home. However, antidepressants should only be considered following full assessment and recommendation by a child and adolescent psychiatrist.
It is important to prioritize the safety and well-being of the child and consult with mental health professionals before making any decisions about discharge.
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This question is part of the following fields:
- Paediatrics
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Question 6
Correct
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A 38-year-old male with a history of alcohol abuse is under the care of a nursing home due to a diagnosis of Wernicke's encephalopathy. What vitamin deficiency is the cause of this condition?
Your Answer: Thiamine
Explanation:Wernicke’s Encephalopathy
Wernicke’s encephalopathy is a condition that is linked to bleeding in the mamillary bodies of the brain. This condition is commonly seen in patients who have a deficiency in thiamine. The symptoms of Wernicke’s encephalopathy include an altered mental state, difficulty with coordination and balance, and ophthalmoplegia. This condition is particularly problematic for individuals who abuse alcohol as they often rely on alcohol for their daily caloric intake.
Wernicke’s encephalopathy is a serious condition that can have long-lasting effects on a person’s health. With proper treatment and care, it is possible to manage the symptoms of Wernicke’s encephalopathy and improve overall health and well-being.
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This question is part of the following fields:
- Clinical Sciences
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Question 7
Incorrect
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A 67-year-old patient visits his primary care physician complaining of a recent exacerbation of his chronic cough. He reports experiencing similar episodes in the past, during which his typically yellow sputum becomes thicker and slightly tinged with blood. The patient has a history of hypertension and bronchiectasis, and has received multiple courses of antibiotics for these exacerbations. Upon examination, the patient appears relatively healthy but continues to cough. Crackles are heard upon chest auscultation. Given the patient's medical history and likely diagnosis, the physician decides to obtain a sputum sample. What organism is most likely to be observed upon culturing?
Your Answer: Streptococcus pneumoniae
Correct Answer: Haemophilus influenzae
Explanation:The most common organism associated with bronchiectasis is Haemophilus influenzae, making it the correct answer for an acute exacerbation of this condition. While Klebsiella pneumonia is also a possibility, it is less frequently seen and typically associated with pneumonia in patients with alcohol dependence. Pseudomonas aeruginosa is an incorrect answer, as it is more commonly found in patients with cystic fibrosis than bronchiectasis. Staphylococcus aureus is also less commonly isolated in bronchiectasis, and is more commonly associated with other infective conditions such as infective endocarditis and skin infections, as well as being a secondary bacterial cause of pneumonia following influenzae.
Managing Bronchiectasis
Bronchiectasis is a condition where the airways become permanently dilated due to chronic inflammation or infection. Before starting treatment, it is important to identify any underlying causes that can be treated, such as immune deficiency. The management of bronchiectasis includes physical training, such as inspiratory muscle training, which has been shown to be effective for patients without cystic fibrosis. Postural drainage, antibiotics for exacerbations, and long-term rotating antibiotics for severe cases are also recommended. Bronchodilators may be used in selected cases, and immunizations are important to prevent infections. Surgery may be considered for localized disease. The most common organisms isolated from patients with bronchiectasis include Haemophilus influenzae, Pseudomonas aeruginosa, Klebsiella spp., and Streptococcus pneumoniae.
Spacing:
Bronchiectasis is a condition where the airways become permanently dilated due to chronic inflammation or infection. Before starting treatment, it is important to identify any underlying causes that can be treated, such as immune deficiency.
The management of bronchiectasis includes physical training, such as inspiratory muscle training, which has been shown to be effective for patients without cystic fibrosis. Postural drainage, antibiotics for exacerbations, and long-term rotating antibiotics for severe cases are also recommended. Bronchodilators may be used in selected cases, and immunizations are important to prevent infections. Surgery may be considered for localized disease.
The most common organisms isolated from patients with bronchiectasis include Haemophilus influenzae, Pseudomonas aeruginosa, Klebsiella spp., and Streptococcus pneumoniae.
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This question is part of the following fields:
- Medicine
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Question 8
Correct
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What is the accurate information about primary pulmonary tuberculosis?
Your Answer: May be totally asymptomatic
Explanation:When you see the CD symbol on a prescription, it means that the medication is a controlled drug. This indicates that the substance must be requested by a qualified practitioner and signed and dated. The prescription must also include the prescriber’s address. Additionally, the prescriber must write the patient’s name and address, the preparation, and the dose in both figures and words. If the prescription is written by a dentist, it should state for dental use only. Controlled drugs include opiates and other substances that require careful monitoring and regulation. By the CD symbol and the requirements for prescribing controlled drugs, patients can ensure that they receive safe and effective treatment.
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This question is part of the following fields:
- Infectious Diseases
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Question 9
Incorrect
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A 67-year-old woman presents with right-sided pleural effusion. Thoracentesis is performed and the pleural fluid analysis reveals the following results:
Pleural fluid Pleural fluid analysis Serum Normal value
Protein 2.5 g/dl 7.3 g/dl 6-7.8 g/dl
Lactate dehydrogenase (LDH) 145 IU/l 350 IU/l 100-250 IU/l
What is the probable diagnosis for this patient?Your Answer: Breast cancer
Correct Answer: Heart failure
Explanation:Causes of Transudative and Exudative Pleural Effusions
Pleural effusion is the accumulation of fluid in the pleural space, which can be classified as transudative or exudative based on Light’s criteria. The most common cause of transudative pleural effusion is congestive heart failure, which can also cause bilateral or unilateral effusions. Other causes of transudative effusions include cirrhosis and nephrotic syndrome. Exudative pleural effusions are typically caused by pneumonia, malignancy, or pleural infections. Nephrotic syndrome can also cause transudative effusions, while breast cancer and viral pleuritis are associated with exudative effusions. Proper identification of the underlying cause is crucial for appropriate management of pleural effusions.
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This question is part of the following fields:
- Respiratory
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Question 10
Incorrect
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A 27-year-old woman presents with a 3-day history of inability to use her right arm. She has been staying with her mother for the past 5 days after experiencing domestic abuse from her husband. The patient reports feeling very stressed. She denies any history of trauma. On examination, there is normal tone and reflexes but 0/5 power in all muscle groups of the right upper limb. The affected arm falls to the patient's side when held above her face and released. What is the probable diagnosis?
Your Answer: Somatisation disorder
Correct Answer: Conversion disorder
Explanation:The probable diagnosis for this patient is conversion disorder, which is a psychiatric condition that involves the loss of motor or sensory function and is often caused by stress. There is no evidence of neurological disease in the patient’s history or clinical findings. The condition is likely triggered by recent domestic abuse and stress. The patient also exhibits a positive drop-arm test, which is a controlled drop of the arm to prevent it from hitting the face, and is an unconscious manifestation of psychological stress.
Acute stress disorder is a condition that occurs after life-threatening experiences, such as abuse, and is characterized by symptoms of hyperarousal, re-experiencing of the traumatic event, avoidance of stimuli, and distress. However, it does not involve physical weakness. It typically lasts between 3 days and 1 month.
Post-traumatic stress disorder is another condition that occurs after life-threatening experiences, such as abuse, and has similar symptoms to acute stress disorder. However, it lasts longer than 1 month.
Patients with somatisation disorder have multiple bodily complaints that last for months to years and persistent anxiety about their symptoms. However, based on this patient’s history and physical findings, conversion disorder is the most likely diagnosis.
Given the patient’s normal tone and reflexes and the absence of trauma to the neck or spine, it is highly unlikely that a spinal cord lesion is causing total arm paralysis.
Psychiatric Terms for Unexplained Symptoms
There are various psychiatric terms used to describe patients who exhibit symptoms for which no organic cause can be found. One such disorder is somatisation disorder, which involves the presence of multiple physical symptoms for at least two years, and the patient’s refusal to accept reassurance or negative test results. Another disorder is illness anxiety disorder, which is characterized by a persistent belief in the presence of an underlying serious disease, such as cancer, despite negative test results.
Conversion disorder is another condition that involves the loss of motor or sensory function, and the patient does not consciously feign the symptoms or seek material gain. Patients with this disorder may be indifferent to their apparent disorder, a phenomenon known as la belle indifference. Dissociative disorder, on the other hand, involves the process of ‘separating off’ certain memories from normal consciousness, and may manifest as amnesia, fugue, or stupor. Dissociative identity disorder (DID) is the most severe form of dissociative disorder and was previously known as multiple personality disorder.
Factitious disorder, also known as Munchausen’s syndrome, involves the intentional production of physical or psychological symptoms. Finally, malingering is the fraudulent simulation or exaggeration of symptoms with the intention of financial or other gain. Understanding these psychiatric terms can help healthcare professionals better diagnose and treat patients with unexplained symptoms.
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This question is part of the following fields:
- Psychiatry
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Question 11
Incorrect
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A 73-year-old man comes to the Emergency department after experiencing an injury while playing tennis. He felt something snap in his forearm while hitting a forehand shot. Upon examination, there is a noticeable lump above his elbow, about the size of an orange, and he has difficulty flexing his elbow. What type of injury is he likely to have sustained?
Your Answer: Distal biceps rupture
Correct Answer: Proximal biceps rupture
Explanation:The Biceps Brachii Muscle and Tendon Rupture
The biceps brachii muscle is located in the anterior compartment of the arm and is responsible for flexion. It has two heads, the short head attaching to the tip of the coracoid process of the scapula and the long head attaching to the supraglenoid tubercle of the scapula. The tendon of the long head crosses the head of the humerus within the glenohumeral joint and descends in the intertubercular groove of the humerus.
Rupture of the biceps tendon is usually caused by wear and tear of an inflamed tendon as it moves back and forth in the intertubercular groove of the humerus. This injury is common in older athletes, particularly baseball pitchers. The tendon is typically torn from its attachment to the supraglenoid tubercle of the scapula, resulting in a dramatic snap or pop and a ball-like bulge in the distal part of the arm.
While forceful flexion of the arm against excessive resistance can also cause biceps tendon rupture, it more commonly occurs as a result of repetitive overhead motions, such as those performed by swimmers. Conservative treatment is typically the best option, with patients becoming asymptomatic after four to six weeks. Surgical intervention is usually only necessary for cosmetic reasons or if shoulder reconstruction is required.
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This question is part of the following fields:
- Clinical Sciences
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Question 12
Correct
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A 25-year-old woman presents with a history of scant abnormal vaginal bleeding for 5 days before menses during each cycle over the past 6 months. She has been married for a year but has been unable to conceive. She experiences lower abdominal cramps during her menses and takes naproxen for relief. Additionally, she complains of pelvic pain during intercourse and defecation. On examination, mild tenderness is noted in the right adnexa. What is the most likely diagnosis?
Your Answer: Endometriosis
Explanation:Common Causes of Abnormal Uterine Bleeding in Women
Abnormal uterine bleeding is a common gynecological problem that can have various underlying causes. Here are some of the most common causes of abnormal uterine bleeding in women:
Endometriosis: This condition occurs when the endometrial tissue grows outside the uterus, usually in the ovaries or pelvic cavity. Symptoms include painful periods, painful intercourse, painful bowel movements, and adnexal tenderness. Endometriosis can also lead to infertility.
Ovulatory dysfunctional uterine bleeding: This condition is caused by excessive production of vasoconstrictive prostaglandins in the endometrium during a menstrual period. Symptoms include heavy and painful periods. Non-steroidal anti-inflammatory drugs are the treatment of choice.
Cervical cancer: This type of cancer is associated with human papillomavirus infection, smoking, early intercourse, multiple sexual partners, use of oral contraceptives, and immunosuppression. Symptoms include vaginal spotting, post-coital bleeding, dyspareunia, and vaginal discharge. Cervical cancer is rare before the age of 25 and is unlikely to cause dysmenorrhea, dyspareunia, dyschezia, or adnexal tenderness.
Submucosal leiomyoma: This is a benign neoplastic mass of myometrial origin that protrudes into the intrauterine cavity. Symptoms include heavy and painful periods, but acute pain is rare.
Endometrial polyps: These are masses of endometrial tissue attached to the inner surface of the uterus. They are more common around menopausal age and can cause heavy or irregular bleeding. They are usually not associated with pain or menstrual cramps and are not pre-malignant.
Understanding the Common Causes of Abnormal Uterine Bleeding in Women
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This question is part of the following fields:
- Gynaecology
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Question 13
Incorrect
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A 58-year-old male presents with black tarry stools. He has a history of chronic alcoholism for 30 years, consuming approximately a litre of vodka daily. During an upper gastrointestinal endoscopy, oesophageal varices with bleeding and a small gastric ulcer were discovered. Due to active gastrointestinal bleeding, he was kept nil by mouth and given intravenous infusions of 5% glucose plus 0.45% sodium chloride solution at a rate of 60 ml/hour and 60 ml of 50% glucose water every 6 hours. Initially, he showed no signs of confusion, and his ammonia levels were normal. However, he later developed polymorphic VT, and refeeding syndrome is suspected. What electrolyte changes would you anticipate?
Your Answer: Low Phosphate, low potassium, high magnesium
Correct Answer: Low Phosphate, low potassium, low magnesium
Explanation:Refeeding Syndrome
Refeeding syndrome is a condition that occurs when nutrition is reintroduced to individuals who have been starved, severely malnourished, or metabolically stressed due to severe illness. This syndrome is characterized by metabolic disturbances that can be attributed to the resumption of glycaemia, which leads to increased insulin and decreased secretion of glucagon. As a result, insulin stimulates glycogen, fat, and protein synthesis, which requires minerals such as phosphate and magnesium, as well as cofactors such as thiamine. Furthermore, insulin stimulates the uptake of potassium into the cell, which can lead to low levels of potassium, magnesium, and phosphate.
To treat refeeding syndrome, it is essential to correct the electrolyte imbalances that occur. This can be achieved through careful monitoring of the patient’s electrolyte levels and providing appropriate supplementation as needed. By the underlying mechanisms of refeeding syndrome and taking appropriate measures to correct electrolyte imbalances, healthcare professionals can effectively manage this condition and prevent potential complications.
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This question is part of the following fields:
- Clinical Sciences
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Question 14
Incorrect
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A 50-year-old woman presents with fever and pain in the upper right quadrant. Her blood work reveals an elevated CRP and an ultrasound confirms acute cholecystitis. The patient is administered analgesia and IV fluids. What other treatment options are likely to be prescribed for this patient?
Your Answer: Laparoscopic cholecystectomy within 24 hours of admission
Correct Answer: Intravenous antibiotics + laparoscopic cholecystectomy within 1 week
Explanation:Acute cholecystitis is a condition where the gallbladder becomes inflamed. This is usually caused by gallstones, which are present in 90% of cases. The remaining 10% of cases are known as acalculous cholecystitis and are typically seen in severely ill patients who are hospitalized. The pathophysiology of acute cholecystitis is multifactorial and can be caused by gallbladder stasis, hypoperfusion, and infection. In immunosuppressed patients, it may develop due to Cryptosporidium or cytomegalovirus. This condition is associated with high morbidity and mortality rates.
The main symptom of acute cholecystitis is right upper quadrant pain, which may radiate to the right shoulder. Patients may also experience fever and signs of systemic upset. Murphy’s sign, which is inspiratory arrest upon palpation of the right upper quadrant, may be present. Liver function tests are typically normal, but deranged LFTs may indicate Mirizzi syndrome, which is caused by a gallstone impacted in the distal cystic duct, causing extrinsic compression of the common bile duct.
Ultrasound is the first-line investigation for acute cholecystitis. If the diagnosis remains unclear, cholescintigraphy (HIDA scan) may be used. In this test, technetium-labelled HIDA is injected IV and taken up selectively by hepatocytes and excreted into bile. In acute cholecystitis, there is cystic duct obstruction, and the gallbladder will not be visualized.
The treatment for acute cholecystitis involves intravenous antibiotics and cholecystectomy. NICE now recommends early laparoscopic cholecystectomy, within 1 week of diagnosis. Previously, surgery was delayed for several weeks until the inflammation had subsided. Pregnant women should also proceed to early laparoscopic cholecystectomy to reduce the chances of maternal-fetal complications.
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This question is part of the following fields:
- Surgery
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Question 15
Correct
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A sixty-seven-year-old woman on a colorectal surgery ward is recovering from a left hemi-colectomy 5 days previously for a tumour in the descending colon. She is eating and drinking as normal and has been able to mobilise with a walking aid during her physiotherapy sessions.
During the night she complains to the nurse that she is experiencing palpitations and feels very unwell. She has no significant past medical history and no previous surgery prior to this operation. Following her initial assessment, the nurse contacts the foundation year one doctor on call to assess the patient.
On examination:
Heart rate: 124/minute and irregularly irregular; Respiratory rate: 16/minute; Temperature: 38.2 ºC; Blood pressure: 132/82 mmHg; Oxygen saturations levels: 98%; Capillary refill time: <2 seconds.
Heart sounds normal. Lungs clear.
Abdomen distended. Wound on left flank healing well. No erythema or suppurative exudate. Firm and non-tender. No organomegaly. Kidneys non-ballotable. No pulsatile mass. Bowel sounds absent. No renal bruit.
There is feculent material present in the abdominal wound drain.
What is the most likely cause of this patient's symptoms?Your Answer: Anastomotic leak
Explanation:The development of fast atrial fibrillation (AF) in a patient who has undergone a right-hemicolectomy is concerning and warrants investigation for anastomotic leak (2) as a potential cause. This is especially important as the patient has no prior history of AF or cardiac issues. The timing of the onset of AF, 5 days post-op, and the presence of feculent material in the wound drain are additional red flags. Ischaemic colitis (1) is less likely as the patient is not experiencing severe abdominal pain or passing bloody stools. Ruptured abdominal aortic aneurysms (3) are also less likely due to the recent surgery. A myocardial infarction is unlikely as the patient does not have chest pain radiating to the left arm and jaw or shortness of breath.
Complications can occur in all types of surgery and require vigilance in their detection. Anticipating likely complications and appropriate avoidance can minimize their occurrence. Understanding the anatomy of a surgical field will allow appreciation of local and systemic complications that may occur. Physiological and biochemical derangements may also occur, and appropriate diagnostic modalities should be utilized. Safe and timely intervention is the guiding principle for managing complications.
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This question is part of the following fields:
- Surgery
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Question 16
Correct
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A 25-year-old woman attends her first antenatal appointment, believing she is 10 weeks pregnant. Which of the following is not typically done during this appointment?
Your Answer: Pelvic examination
Explanation:NICE guidelines recommend 10 antenatal visits for first pregnancies and 7 for subsequent pregnancies if uncomplicated. The purpose of each visit is outlined, including booking visits, scans, screening for Down’s syndrome, routine care for blood pressure and urine, and discussions about labour and birth plans. Rhesus negative women are offered anti-D prophylaxis at 28 and 34 weeks. The guidelines also recommend discussing options for prolonged pregnancy at 41 weeks.
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This question is part of the following fields:
- Obstetrics
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Question 17
Correct
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A 65-year-old Asian woman presents with sudden onset paranoid thoughts and suicidal ideation. She has a medical history of hypertension, type 2 diabetes mellitus, and hypercholesterolemia. Given her age and first episode of psychosis, what crucial investigation is necessary to rule out other potential underlying causes?
Your Answer: CT head
Explanation:When elderly patients present with sudden onset psychosis, it is important to consider and rule out organic causes before attributing it to a primary psychotic disorder. In such cases, a CT head scan or even an MRI should be considered to detect any underlying organic causes such as a brain tumour, stroke or CNS infection. While HbA1c is typically used to assess diabetes control, PET scans are more commonly used to provide detailed information about metabolic processes in tissues, such as identifying active cancer cells. Chest X-rays may also be useful in certain cases.
Thought disorders can manifest in various ways, including circumstantiality, tangentiality, neologisms, clang associations, word salad, Knight’s move thinking, flight of ideas, perseveration, and echolalia. Circumstantiality involves providing excessive and unnecessary detail when answering a question, but eventually returning to the original point. Tangentiality, on the other hand, refers to wandering from a topic without returning to it. Neologisms are newly formed words, often created by combining two existing words. Clang associations occur when ideas are related only by their similar sounds or rhymes. Word salad is a type of speech that is completely incoherent, with real words strung together into nonsensical sentences. Knight’s move thinking is a severe form of loosening of associations, characterized by unexpected and illogical leaps from one idea to another. Flight of ideas is a thought disorder that involves jumping from one topic to another, but with discernible links between them. Perseveration is the repetition of ideas or words despite attempts to change the topic. Finally, echolalia is the repetition of someone else’s speech, including the question that was asked.
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This question is part of the following fields:
- Psychiatry
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Question 18
Correct
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A 72-year-old man is admitted to hospital with exertional chest pain. He reports that this has only begun in the past few days, particularly when climbing hills. The pain is not present when he is at rest.
What is the gold standard test that you will request for this patient from the following tests?Your Answer: Computed tomography (CT) coronary angiogram
Explanation:Investigating Cardiac Chest Pain: Recommended Tests
When a patient presents with cardiac chest pain, it is important to conduct appropriate investigations to determine the underlying cause. The following tests are recommended:
Computed Tomography (CT) Coronary Angiogram: This non-invasive test uses CT scanning to detect any evidence of coronary artery disease and determine its extent. It is considered the gold standard test for investigating cardiac chest pain.
Angiogram: Before undergoing an angiogram, the patient should first have an exercise tolerance test (ETT) to assess real-time cardiac function during exertion. If the patient experiences ischaemic changes and reduced exercise tolerance, an angiogram may be necessary.
Chest X-ray: A chest X-ray is not a priority investigation for cardiac chest pain, as it does not aid in diagnosis unless there is evidence of associated heart failure or pleural effusions.
Full Blood Count: While anaemia could contribute to angina, a full blood count is not a first-line investigation for cardiac chest pain.
Troponin: Troponin levels may be raised in cases of myocardial damage, but are not necessary for managing angina. The recurring pain and relief with rest indicate angina, rather than a myocardial infarction (MI), which would present with crushing chest pain and dyspnoea that is not alleviated by rest.
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This question is part of the following fields:
- Cardiology
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Question 19
Incorrect
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A 21-year-old man is assaulted outside a nightclub and struck with a baseball bat on the left side of his head. He is taken to the emergency department and placed under observation. As his Glasgow coma score (GCS) declines, he falls into a coma. What is the most probable haemodynamic parameter that he will exhibit?
Your Answer: Hypotension and bradycardia
Correct Answer: Hypertension and bradycardia
Explanation:Before coning, hypertension and bradycardia are observed. The brain regulates its own blood supply by managing the overall blood pressure.
Types of Traumatic Brain Injury
Traumatic brain injury can result in primary and secondary brain injury. Primary brain injury can be focal or diffuse. Diffuse axonal injury occurs due to mechanical shearing, which causes disruption and tearing of axons. intracranial haematomas can be extradural, subdural, or intracerebral, while contusions may occur adjacent to or contralateral to the side of impact. Secondary brain injury occurs when cerebral oedema, ischaemia, infection, tonsillar or tentorial herniation exacerbates the original injury. The normal cerebral auto regulatory processes are disrupted following trauma rendering the brain more susceptible to blood flow changes and hypoxia. The Cushings reflex often occurs late and is usually a pre-terminal event.
Extradural haematoma is bleeding into the space between the dura mater and the skull. It often results from acceleration-deceleration trauma or a blow to the side of the head. The majority of epidural haematomas occur in the temporal region where skull fractures cause a rupture of the middle meningeal artery. Subdural haematoma is bleeding into the outermost meningeal layer. It most commonly occurs around the frontal and parietal lobes. Risk factors include old age, alcoholism, and anticoagulation. Subarachnoid haemorrhage classically causes a sudden occipital headache. It usually occurs spontaneously in the context of a ruptured cerebral aneurysm but may be seen in association with other injuries when a patient has sustained a traumatic brain injury. Intracerebral haematoma is a collection of blood within the substance of the brain. Causes/risk factors include hypertension, vascular lesion, cerebral amyloid angiopathy, trauma, brain tumour, or infarct. Patients will present similarly to an ischaemic stroke or with a decrease in consciousness. CT imaging will show a hyperdensity within the substance of the brain. Treatment is often conservative under the care of stroke physicians, but large clots in patients with impaired consciousness may warrant surgical evacuation.
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This question is part of the following fields:
- Surgery
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Question 20
Correct
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A 28-year-old woman with a history of depression comes in 2 months postpartum with symptoms of low mood, lack of energy, and loss of pleasure for the past 3 weeks. She is currently breastfeeding. She has previously taken fluoxetine and found it effective but stopped during pregnancy. After a conversation, she has decided to resume her medication.
Which antidepressant would be the best choice to initiate treatment?Your Answer: Sertraline
Explanation:Understanding Postpartum Mental Health Problems
Postpartum mental health problems can range from mild ‘baby-blues’ to severe puerperal psychosis. To screen for depression, healthcare professionals may use the Edinburgh Postnatal Depression Scale, which is a 10-item questionnaire that indicates how the mother has felt over the previous week. A score of more than 13 indicates a ‘depressive illness of varying severity’, with sensitivity and specificity of more than 90%. The questionnaire also includes a question about self-harm.
‘Baby-blues’ is seen in around 60-70% of women and typically occurs 3-7 days following birth. It is more common in primips, and mothers are characteristically anxious, tearful, and irritable. Reassurance and support from healthcare professionals, particularly health visitors, play a key role in managing this condition. Most women with the baby blues will not require specific treatment other than reassurance.
Postnatal depression affects around 10% of women, with most cases starting within a month and typically peaking at 3 months. The features are similar to depression seen in other circumstances, and cognitive behavioural therapy may be beneficial. Certain SSRIs such as sertraline and paroxetine may be used if symptoms are severe. Although these medications are secreted in breast milk, they are not thought to be harmful to the infant.
Puerperal psychosis affects approximately 0.2% of women and requires admission to hospital, ideally in a Mother & Baby Unit. Onset usually occurs within the first 2-3 weeks following birth, and features include severe swings in mood (similar to bipolar disorder) and disordered perception (e.g. auditory hallucinations). There is around a 25-50% risk of recurrence following future pregnancies. Paroxetine is recommended by SIGN because of the low milk/plasma ratio, while fluoxetine is best avoided due to a long half-life.
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This question is part of the following fields:
- Psychiatry
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Question 21
Correct
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A 25-year-old woman, who has never been pregnant, complains of chronic pain in her pelvis and sacrum during her menstrual cycle. Her temperature is 37.2 degrees Celsius. During the examination, there is tenderness in her posterior vaginal fornix and uterine motion tenderness. A pelvic ultrasound shows no abnormalities. What is the subsequent diagnostic test recommended?
Your Answer: Laparoscopy
Explanation:When it comes to patients with suspected endometriosis, laparoscopy is considered the most reliable investigation method.
Understanding Endometriosis
Endometriosis is a common condition where endometrial tissue grows outside of the uterus. It affects around 10% of women of reproductive age and can cause chronic pelvic pain, painful periods, painful intercourse, and subfertility. Other symptoms may include urinary problems and painful bowel movements. Diagnosis is typically made through laparoscopy, and treatment options depend on the severity of symptoms.
First-line treatments for symptomatic relief include NSAIDs and/or paracetamol. If these do not help, hormonal treatments such as the combined oral contraceptive pill or progestogens may be tried. If symptoms persist or fertility is a priority, referral to secondary care may be necessary. Secondary treatments may include GnRH analogues or surgery. For women trying to conceive, laparoscopic excision or ablation of endometriosis plus adhesiolysis is recommended, as well as ovarian cystectomy for endometriomas.
It is important to note that there is poor correlation between laparoscopic findings and severity of symptoms, and that there is little role for investigation in primary care. If symptoms are significant, referral for a definitive diagnosis is recommended.
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This question is part of the following fields:
- Gynaecology
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Question 22
Correct
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A 32-year-old woman is undergoing a dating ultrasound scan and is found to be carrying monochorionic twins. Her midwife informs her that she will require frequent scans during her pregnancy. What is the primary purpose of ultrasound monitoring between 16 and 24 weeks gestation for this particular pregnancy?
Your Answer: Twin-to-twin transfusion syndrome
Explanation:Twin-to-twin transfusion syndrome (TTTS) is a common complication that can occur in monochorionic twin pregnancies. This happens when the two fetuses share a single placenta, allowing blood to flow between them. However, in TTTS, one twin (the ‘donor’) receives less blood flow from the placenta than the other twin (the ‘recipient’) due to abnormalities in the placental blood vessels. This can cause the recipient to become overloaded with fluid, while the donor may become anemic. Additionally, differences in urine production can lead to one twin having too little amniotic fluid (oligohydramnios) and the other having too much (polyhydramnios), which can cause further complications. In severe cases, TTTS can even be fatal for one or both fetuses. To detect TTTS, ultrasound examinations are typically performed between 16 and 24 weeks of pregnancy, while after 24 weeks, the focus shifts to detecting fetal growth restriction.
Multiple Pregnancies: Incidence, Types, and Complications
Multiple pregnancies, such as twins and triplets, have different incidences. Twins occur in 1 out of 105 pregnancies, while triplets occur in 1 out of 10,000 pregnancies. Twins can be either dizygotic or monozygotic, with the former being more common at 80%. Monoamniotic monozygotic twins have higher risks of spontaneous miscarriage, perinatal mortality rate, malformations, intrauterine growth restriction, and prematurity. Twin-to-twin transfusions may occur, which require laser ablation of interconnecting vessels.
Dizygotic twins are becoming more common due to infertility treatment, and predisposing factors include previous twins, family history, increasing maternal age, multigravida, induced ovulation, in-vitro fertilization, and race, particularly Afro-Caribbean. Antenatal complications may arise, such as polyhydramnios, pregnancy-induced hypertension, and anemia, while fetal complications include perinatal mortality, prematurity, light-for-date babies, and malformations.
During labor, complications may occur, such as postpartum hemorrhage, malpresentation, cord prolapse, and entanglement. Management includes rest, ultrasound for diagnosis and monthly checks, additional iron and folate, more antenatal care, and precautions during labor, such as having two obstetricians present. Most twins deliver by 38 weeks, and if longer, most twins are induced at 38-40 weeks.
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This question is part of the following fields:
- Obstetrics
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Question 23
Incorrect
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On a night shift at the labour ward, the nursing staff pulls the emergency cord for a patient who is experiencing bleeding after giving birth. The severity of the postpartum hemorrhage can be determined based on the amount of blood loss and the time elapsed since delivery. What is the defining parameter for a major primary postpartum hemorrhage?
Your Answer: Blood loss > 500mls, within 24 hours of delivery
Correct Answer: Blood loss > 1000mls, within 24 hours of delivery
Explanation:Understanding Post-Partum Haemorrhage: Types and Management
Post-partum haemorrhage (PPH) is a common complication of childbirth that can lead to serious maternal morbidity and mortality. There are two types of PPH: primary and secondary. Primary PPH occurs within 24 hours of delivery and is further classified as major or minor based on the amount of blood loss. Major PPH is defined as bleeding from the genital tract with an estimated blood loss of >1000mls, while minor PPH is defined as blood loss <1000mls within 24 hours of delivery. The most common cause of primary PPH is uterine atony. Secondary PPH, on the other hand, occurs from 24 hours until 12 weeks post-partum and is characterized by abnormal bleeding from the genital tract. Any bleeding from 24 hours until 36 hours post-partum with blood loss >500mls is considered secondary PPH.
Management of PPH centers around adequate resuscitation, bimanual uterine compression to stimulate contraction, and the use of IV oxytocin. While obstetric haemorrhage is no longer a major cause of maternal death in developed countries, it remains a significant problem in developing countries. Understanding the types and management of PPH is crucial in preventing maternal morbidity and mortality.
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This question is part of the following fields:
- Obstetrics
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Question 24
Correct
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Which of the following statements about the use of aspirin in patients with ischemic heart disease is accurate?
Your Answer: All patients should take aspirin if there is no contraindication
Explanation:Aspirin is recommended for all patients with ischaemic heart disease, unless there is a contraindication. However, the guidelines have been updated to suggest that patients with other types of cardiovascular disease, such as stroke and peripheral arterial disease, should be given clopidogrel as the first-line treatment.
The Mechanism and Guidelines for Aspirin Use in Cardiovascular Disease
Aspirin is a medication that works by blocking the action of cyclooxygenase-1 and 2, which are responsible for the synthesis of prostaglandin, prostacyclin, and thromboxane. By inhibiting the formation of thromboxane A2 in platelets, aspirin reduces their ability to aggregate, making it a widely used medication in cardiovascular disease. However, recent trials have cast doubt on the use of aspirin in primary prevention of cardiovascular disease, leading to changes in guidelines. Aspirin is now recommended as a first-line treatment for patients with ischaemic heart disease, but it should not be used in children under 16 due to the risk of Reye’s syndrome. The medication can also potentiate the effects of oral hypoglycaemics, warfarin, and steroids.
The Medicines and Healthcare products Regulatory Agency (MHRA) issued a drug safety update in January 2010, reminding prescribers that aspirin is not licensed for primary prevention. NICE now recommends clopidogrel as a first-line treatment following an ischaemic stroke and for peripheral arterial disease. However, the situation is more complex for TIAs, with recent Royal College of Physician (RCP) guidelines supporting the use of clopidogrel, while older NICE guidelines still recommend aspirin + dipyridamole – a position the RCP state is ‘illogical’. Despite these changes, aspirin remains an important medication in the treatment of cardiovascular disease, and its use should be carefully considered based on individual patient needs and risk factors.
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This question is part of the following fields:
- Pharmacology
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Question 25
Correct
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A 32-year-old man presents with oral and genital ulcers and a red rash, parts of which have started to blister. On examination, he is noted to have red eyes. He had been treated with antibiotics ten days ago for a chest infection.
What is the most probable reason behind these symptoms?Your Answer: Stevens-Johnson syndrome
Explanation:Differential Diagnosis: Stevens-Johnson Syndrome and Other Skin Conditions
Stevens-Johnson syndrome is a severe medical condition that requires immediate recognition and treatment. It is characterized by blistering of the skin and mucosal surfaces, leading to the loss of the skin barrier. This condition is rare and is part of a spectrum of diseases that includes toxic epidermal necrolysis. Stevens-Johnson syndrome is the milder end of this spectrum.
The use of certain drugs can trigger the activation of cytotoxic CD8+ T-cells, which attack the skin’s keratinocytes, leading to blister formation and skin sloughing. It is important to note that mucosal involvement may precede cutaneous manifestations. Stevens-Johnson syndrome is associated with the use of non-steroidal anti-inflammatory drugs, allopurinol, antibiotics, carbamazepine, lamotrigine, phenytoin, and others.
Prompt treatment is essential, as the condition can progress to multi-organ failure and death if left untreated. Expert clinicians and nursing staff should manage the treatment to minimize skin shearing, fluid loss, and disease progression.
Other skin conditions that may present similarly to Stevens-Johnson syndrome include herpes simplex, bullous pemphigoid, pemphigus vulgaris, and graft-versus-host disease. Herpes simplex virus infection causes oral and genital ulceration but does not involve mucosal surfaces. Bullous pemphigoid is an autoimmune blistering condition that affects the skin but not the mucosa. Pemphigus vulgaris is an autoimmune condition that affects both the skin and mucosal surfaces. Graft-versus-host disease is unlikely in the absence of a history of transplantation.
In conclusion, Stevens-Johnson syndrome is a severe medical condition that requires prompt recognition and treatment. It is essential to differentiate it from other skin conditions that may present similarly to ensure appropriate management.
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This question is part of the following fields:
- Acute Medicine And Intensive Care
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Question 26
Correct
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A 45-year-old woman has been diagnosed with ovarian carcinoma and is scheduled to start chemotherapy. The first line chemotherapy for ovarian cancer in her area is based on paclitaxel. What is the most appropriate description of paclitaxel for this patient?
Your Answer: Joint pains are the most common adverse event
Explanation:Adverse Effects of Paclitaxel
Paclitaxel is a commonly used chemotherapy drug that is known to cause joint pains in up to 60% of those treated. Unlike Herceptin, which can cause cardiomyopathy, paclitaxel is associated with cardiac conduction abnormalities. Myelosuppression, a decrease in the production of blood cells, is managed with g-CSF, while neuropathy, a nerve damage condition, is more pronounced when paclitaxel infusions are given over a shorter period of time. Serious hypersensitivity is rare, occurring in only 1% or less of patients who take it.
In summary, paclitaxel is a potent chemotherapy drug that can cause several adverse effects. Joint pains, cardiac conduction abnormalities, myelosuppression, neuropathy, and hypersensitivity are some of the most commonly observed side effects. However, with proper management and monitoring, these adverse effects can be minimized, and the benefits of paclitaxel in treating cancer can be maximized.
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This question is part of the following fields:
- Pharmacology
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Question 27
Incorrect
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A 62-year-old male comes to the clinic complaining of pain during bowel movements for the past 4 days. Upon examination, a tender, oedematous, and purple subcutaneous mass is found at the anal margin. What is the most appropriate course of action for this patient?
Your Answer: Analgesia and referral for consideration of excision
Correct Answer: Stool softeners, ice packs and analgesia
Explanation:The patient is likely suffering from thrombosed haemorrhoids, which is characterized by anorectal pain and a tender lump on the anal margin. Since the patient has a 4-day history, stool softeners, ice packs, and analgesia are the recommended management options. Referral for excision and analgesia would be appropriate if the history was <72 hours. However, a 2-week wait referral for suspected cancer is not necessary as the patient's symptoms and examination findings are not indicative of cancer. Although this condition typically resolves within 10 days with supportive management, reassurance alone is not enough. The patient should be given analgesia and stool softeners to alleviate the pain. Thrombosed haemorrhoids are characterized by severe pain and the presence of a tender lump. Upon examination, a purplish, swollen, and tender subcutaneous perianal mass can be observed. If the patient seeks medical attention within 72 hours of onset, referral for excision may be necessary. However, if the condition has progressed beyond this timeframe, patients can typically manage their symptoms with stool softeners, ice packs, and pain relief medication. Symptoms usually subside within 10 days.
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This question is part of the following fields:
- Surgery
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Question 28
Correct
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In the context of acid-base balance, what compensatory mechanisms would be observed in an individual who has a pH of 7.20 (normal range: 7.35-7.45) and is experiencing metabolic acidosis?
Your Answer: Increased respiratory rate
Explanation:Compensation Mechanisms in Metabolic Acidosis
In metabolic acidosis, the level of bicarbonate in the blood is low, which is not a compensation. To counteract this, the body increases the respiratory rate to lower the level of CO2 in the blood, resulting in a respiratory alkalosis. This compensatory mechanism is aimed at increasing the blood pH. However, there is a limit to how much the increased respiratory rate can compensate for the metabolic acidosis.
In summary, the body has several mechanisms to compensate for metabolic acidosis, including respiratory alkalosis. While an increased respiratory rate can help to increase the blood pH, it is not a complete solution and has its limits. these compensation mechanisms is important in diagnosing and treating metabolic acidosis.
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This question is part of the following fields:
- Clinical Sciences
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Question 29
Incorrect
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As the obstetrics FY2 doctor, you are reviewing the labour ward patient list. What discovery in one of the patients, who is slightly older, would prompt you to initiate continuous CTG monitoring during labour?
Your Answer: Blood pressure of 140/90 mmHg
Correct Answer: New onset vaginal bleed while in labour
Explanation:Continuous CTG monitoring is recommended during labour if any of the following conditions are present or develop: suspected chorioamnionitis or sepsis, a temperature of 38°C or higher, severe hypertension with a reading of 160/110 mmHg or above, use of oxytocin, or significant meconium. In addition, the 2014 update to the guidelines added fresh vaginal bleeding as a new point of concern, as it may indicate placental rupture or placenta previa, both of which require monitoring of the baby.
Cardiotocography (CTG) is a medical procedure that measures pressure changes in the uterus using either internal or external pressure transducers. It is used to monitor the fetal heart rate, which normally ranges between 100-160 beats per minute. There are several features that can be observed during a CTG, including baseline bradycardia (heart rate below 100 beats per minute), which can be caused by increased fetal vagal tone or maternal beta-blocker use. Baseline tachycardia (heart rate above 160 beats per minute) can be caused by maternal pyrexia, chorioamnionitis, hypoxia, or prematurity. Loss of baseline variability (less than 5 beats per minute) can be caused by prematurity or hypoxia. Early deceleration, which is a decrease in heart rate that starts with the onset of a contraction and returns to normal after the contraction, is usually harmless and indicates head compression. Late deceleration, on the other hand, is a decrease in heart rate that lags behind the onset of a contraction and does not return to normal until after 30 seconds following the end of the contraction. This can indicate fetal distress, such as asphyxia or placental insufficiency. Variable decelerations, which are independent of contractions, may indicate cord compression.
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This question is part of the following fields:
- Obstetrics
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Question 30
Incorrect
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What is the impact of cyclo-oxygenase inhibition on the physiological changes that occur within the first 48 hours after birth?
Your Answer: Maintains patency of ductus arteriosus
Correct Answer: Promotes ductus arteriosus closure
Explanation:The Role of Prostaglandins in Fetal Circulation
In fetal life, the ductus arteriosus plays a crucial role in transmitting blood from the pulmonary trunk to the arch of the aorta. Prostaglandins are necessary to maintain the patency of the ductus arteriosus by vasodilating it. However, at birth, the increase in arterial oxygen tension leads to a decrease in prostaglandin production, causing the ductus arteriosus to constrict and eventually fibrose over 24-48 hours.
In cases where the ductus arteriosus needs to be closed artificially, such as in patent ductus arteriosus, cyclo-oxygenase inhibitors like indomethacin are administered to reduce prostaglandin levels. On the other hand, some congenital cardiac defects rely on the patency of the ductus arteriosus to maintain systemic circulation, and prostaglandin infusions are given to keep the duct open.
After birth, right side heart pressures decrease due to a reduction in pulmonary resistance, leading to the closure of the foramen ovale. Additionally, surfactant production is dependent on corticosteroid levels.
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This question is part of the following fields:
- Clinical Sciences
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Question 31
Correct
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Which one of the following pairs of features would be expected to occur following administration of an anticholinesterase (acetylcholinesterase inhibitor)?
Your Answer: Bradycardia and miosis
Explanation:Organophosphate compounds are an example of anticholinesterases that can cause poisoning.
Understanding Organophosphate Insecticide Poisoning
Organophosphate insecticide poisoning is a condition that occurs when there is an accumulation of acetylcholine in the body, leading to the inhibition of acetylcholinesterase. This, in turn, causes an upregulation of nicotinic and muscarinic cholinergic neurotransmission. In warfare, sarin gas is a highly toxic synthetic organophosphorus compound that has similar effects. The symptoms of organophosphate poisoning can be remembered using the mnemonic SLUD, which stands for salivation, lacrimation, urination, and defecation/diarrhea. Other symptoms include hypotension, bradycardia, small pupils, and muscle fasciculation.
The management of organophosphate poisoning involves the use of atropine, which helps to counteract the effects of acetylcholine. However, the role of pralidoxime in the treatment of this condition is still unclear. Meta-analyses conducted to date have failed to show any clear benefit of pralidoxime in the management of organophosphate poisoning.
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This question is part of the following fields:
- Pharmacology
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Question 32
Incorrect
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A 60-year-old man with a long history of diabetes arrives at the emergency department complaining of excruciating pain around his 'rear end', inability to defecate due to the pain, and spiking temperatures. During the examination, the patient is unable to tolerate an anal examination, but the anus appears red and inflamed. What is the most probable cause of this man's symptoms?
Your Answer: Anal fissure
Correct Answer: Perianal abscess
Explanation:Understanding Perianal Abscesses
A perianal abscess is a type of anorectal abscess that occurs when pus collects within the subcutaneous tissue surrounding the anal sphincter. It is the most common form of anorectal abscess, accounting for around 60% of cases, and is more prevalent in men with an average age of 40 years. Symptoms include pain around the anus, hardened tissue in the anal region, and pus-like discharge from the anus. In some cases, patients may also experience systemic infection.
Perianal abscesses are typically caused by gut flora such as E. coli, although those caused by Staph. aureus are more likely to be a skin infection. Diagnosis can be made through inspection of the anus and digital rectal examination, with further investigations such as colonoscopy and blood tests used to determine underlying causes. Imaging such as MRI and transperineal ultrasound may also be used in complicated cases.
Treatment for perianal abscesses involves surgical incision and drainage under local anaesthetic, with the wound either packed or left open to heal over several weeks. Antibiotics may be used in cases of systemic infection, but are not typically used for wound healing. It is important to note that perianal abscesses are just one type of anorectal abscess, with others classified by the layers and planes they occupy, such as ischiorectal, supralevator, intersphincteric, and horseshoe abscesses.
Overall, understanding perianal abscesses and their causes, symptoms, and treatment options is important for proper diagnosis and management of this common condition.
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This question is part of the following fields:
- Surgery
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Question 33
Correct
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A 28-year-old woman who is 20 weeks pregnant visits the obstetric clinic for a routine ultrasound scan. During the examination, it is observed that the mother's uterus is smaller than expected for her stage of pregnancy, and the ultrasound scan confirms the presence of intrauterine growth restriction (IUGR). The medical team inquires about any potential risk factors for IUGR that the mother may have.
What is a known maternal risk factor for intrauterine growth restriction?Your Answer: Smoking
Explanation:Understanding Risk Factors for Intrauterine Growth Restriction (IUGR)
Intrauterine growth restriction (IUGR) is a condition where a baby does not grow properly in the womb. There are various risk factors associated with IUGR, including smoking during pregnancy, which can increase the likelihood of developing the condition.
There are two types of IUGR: symmetrical and asymmetrical. Symmetrical growth retardation occurs at the start or during early pregnancy and is characterized by a small head and short length. Asymmetrical growth retardation occurs in advanced pregnancy and is characterized by reduced abdominal growth compared to head circumference, due to selective shunting of blood to the brain.
It’s important to note that a baby with a birthweight below the tenth centile is considered small for gestational age (SGA), which may be normal or due to IUGR.
Contrary to popular belief, hypotension (low blood pressure), obesity, and stress are not recognized risk factors for IUGR. However, poorly controlled diabetes is a risk factor for IUGR, while well-controlled diabetes is not.
Understanding these risk factors can help healthcare providers identify and manage IUGR early on, leading to better outcomes for both mother and baby.
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This question is part of the following fields:
- Obstetrics
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Question 34
Incorrect
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A father attends his GP to discuss concerns he has about his 12-year-old daughter. Since the age of three, she has had a lot of routines, such as how she organizes her toys and which way she walks to school, and is very rigid about following them. She does not cope at all well with changes to the routine. She struggles to make friends and seems very uncomfortable in social situations. Apart from going to school, she avoids meeting children; she has been to a few birthday parties, but she was very clingy to her father and demanded to be taken home after a few minutes. On examination, the GP is unable to build a rapport with the girl, as she refuses to speak and will not maintain eye contact. She appears fidgety and gets up and down out of her chair on several occasions to try and leave the room. You suspect a diagnosis but advise her father that more assessment will be needed to confirm a diagnosis.
The sign to support the diagnosis is the child's rigid adherence to routines and difficulty coping with changes to the routine, as well as their struggles with social situations and avoidance of meeting other children.Your Answer: Mainly parallel play aged two years
Correct Answer: Less than ten spoken words by age two years
Explanation:Developmental Milestones and Red Flags in Early Childhood
By the age of two years, children should be using 50 or more words. If they do not meet this milestone, there may be a social, speech or hearing issue that needs to be assessed by a paediatric team. Lack of spoken words could be a sign of autistic spectrum disorder (ASD).
A lack of social smile by age three months is considered abnormal and could indicate a social, visual, or cognitive problem. However, it may also signal ASD in some cases.
Parallel play is normal behavior for two-year-olds. They will happily play next to each other but rarely play with each other. It isn’t until the age of three when they usually start to involve other children in playing.
Separation anxiety from parents or carers at age ten months is normal behavior. Children can become upset if they are not with their parents or carer until the new person becomes more familiar to them, usually between the ages of six months and three years.
Temper tantrums at age 18 months are normal behavior. However, if these tantrums persist into later childhood, it could indicate a social or developmental problem.
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This question is part of the following fields:
- Paediatrics
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Question 35
Correct
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A 10-year-old boy visits his General Practitioner complaining of feeling unwell for the past two days. He reports having a sore throat, general malaise, and nasal congestion, but no cough or fever. During the examination, his pulse rate is 70 bpm, respiratory rate 18 breaths per minute, and temperature 37.3 °C. The doctor notes tender, swollen anterior cervical lymph nodes. What investigation should the doctor consider requesting?
Your Answer: Throat swab
Explanation:Investigations for Upper Respiratory Tract Infections: A Case Study
When a patient presents with symptoms of an upper respiratory tract infection, it is important to consider appropriate investigations to differentiate between viral and bacterial causes. In this case study, a young boy presents with a sore throat, tender/swollen lymph nodes, and absence of a cough. A McIsaac score of 3 suggests a potential for streptococcal pharyngitis.
Throat swab is a useful investigation to differentiate between symptoms of the common cold and streptococcal pharyngitis. Sputum culture may be indicated if there is spread of the infection to the lower respiratory tract. A chest X-ray is not indicated as a first-line investigation, but may be later indicated if there is a spread to the lower respiratory tract. Full blood count is not routinely indicated, as it is only likely to show lymphocytosis for viral infections. Viral testing is not conducted routinely, unless required for public health research or data in the event of a disease outbreak.
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This question is part of the following fields:
- Respiratory
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Question 36
Incorrect
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A 65-year-old woman came to her GP with a complaint of painless blurring and distortion of central vision and difficulty with night vision that has been going on for 2 years. She reports that her vision is sometimes poor and sometimes better. During the examination using a direct ophthalmoscope, yellow deposits were observed at the macula. What is the initial treatment for this patient's eye condition?
Your Answer: Anti-vascular endothelial growth factor (VEGF) intravitreal injection
Correct Answer: Vitamin supplementation
Explanation:Vitamin supplementation containing vitamins C and E, beta-carotene, and zinc can delay the progression of dry age-related macular degeneration (AMD) from intermediate to advanced stages. However, there is no other treatment available for dry AMD, and management is mainly supportive. Pan-retinal photocoagulation is not used for either dry or wet AMD. Anti-vascular endothelial growth factor (VEGF) intravitreal injection is reserved for wet AMD, where there is choroidal neovascularization. This treatment stops abnormal blood vessels from leaking, growing, and bleeding under the retina. Focal laser photocoagulation is sometimes used in wet AMD, but anti-VEGF injections are now the preferred treatment. Photodynamic therapy can be used in wet AMD when anti-VEGF is not an option or for those who do not want repeated intravitreal injections. The patient in question has dry AMD, with metamorphopsia as a symptom and yellow deposits at the macula known as drusen.
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This question is part of the following fields:
- Ophthalmology
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Question 37
Correct
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A 35-year-old woman visits the GP clinic complaining of nausea and vomiting. She is currently 8 weeks pregnant and it is her first pregnancy. She desires an antiemetic to use during the first trimester so she can continue working. She is not experiencing dehydration, has no ketonuria, and can retain fluids. She has no previous medical conditions. What is the best course of action for her management?
Your Answer: Prescribe promethazine
Explanation:Promethazine is the appropriate medication to prescribe for nausea and vomiting in pregnancy, as it is a first-line antiemetic. Metoclopramide should be avoided due to the risk of extrapyramidal effects if used for more than 5 days. While alternative methods such as ginger and acupressure bands may be discussed, as the patient has requested medication, it is appropriate to prescribe promethazine. It is also important to support the patient’s decision to continue working if that is her preference.
Hyperemesis gravidarum is an extreme form of nausea and vomiting of pregnancy that occurs in around 1% of pregnancies and is most common between 8 and 12 weeks. It is associated with raised beta hCG levels and can be caused by multiple pregnancies, trophoblastic disease, hyperthyroidism, nulliparity, and obesity. Referral criteria for nausea and vomiting in pregnancy include continued symptoms with ketonuria and/or weight loss, a confirmed or suspected comorbidity, and inability to keep down liquids or oral antiemetics. The diagnosis of hyperemesis gravidarum requires the presence of 5% pre-pregnancy weight loss, dehydration, and electrolyte imbalance. Management includes first-line use of antihistamines and oral cyclizine or promethazine, with second-line options of ondansetron and metoclopramide. Admission may be needed for IV hydration. Complications can include Wernicke’s encephalopathy, Mallory-Weiss tear, central pontine myelinolysis, acute tubular necrosis, and fetal growth issues.
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This question is part of the following fields:
- Obstetrics
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Question 38
Correct
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A 28-year-old man is brought to the emergency department by security after attempting to enter a music studio. He claims to have a close relationship with a famous musician and just wanted to see him. Despite never having met the musician, he has sent numerous letters and messages. He reports feeling great. He denies any hallucinations. He appears normal and speaks clearly.
What is the probable diagnosis based on his behavior?Your Answer: Delusional disorder
Explanation:Erotomania, also known as De Clerambault’s syndrome, is a type of delusional disorder where the individual believes that a famous person is in love with them. This belief is not accompanied by any other symptoms of psychosis or mood disturbances. Other types of delusions include grandiose and persecutory delusions. Schizotypal personality disorder is characterized by odd beliefs and behaviors, but not to the extent of delusional conviction. Narcissistic personality disorder involves a long-standing pattern of inflated self-importance, a need for excessive admiration, and a lack of empathy. Histrionic personality disorder is characterized by excessive attention-seeking behavior. Bipolar disorder involves periods of both mania and depression.
De Clerambault’s Syndrome: A Delusional Belief in Famous Love
De Clerambault’s syndrome, also known as erotomania, is a type of paranoid delusion that has a romantic aspect. Typically, the patient is a single woman who firmly believes that a well-known person is in love with her. This condition is characterized by a persistent and irrational belief that the famous person is sending secret messages or signals of love, even though there is no evidence to support this belief. The patient may engage in behaviors such as stalking, sending letters or gifts, or attempting to contact the object of their affection. Despite repeated rejections or lack of response, the patient remains convinced of the love affair. This syndrome can be distressing for both the patient and the object of their delusion, and it often requires psychiatric treatment.
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This question is part of the following fields:
- Psychiatry
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Question 39
Incorrect
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A toddler is diagnosed with a ventricular septal defect. What is true about VSD?
Your Answer: Causes 'fixed splitting' of the second heart sound
Correct Answer: Is associated with plethoric lung fields on chest x ray in a 10-week-old infant
Explanation:VSD and Heart Sounds
Ventricular septal defect (VSD) is a heart condition that usually becomes apparent after the first month of life and is characterized by pulmonary plethora. However, most cases of VSD resolve on their own. If central cyanosis is present, it indicates shunt reversal and pulmonary hypertension, which are associated with a poor prognosis and a low likelihood of responding to surgical repair of the VSD.
The second heart sound is typically split, which means that the aortic (A2) and pulmonary (P2) components of the sound are separated. This splitting is considered normal or physiological and only occurs during inspiration, when P2 comes after A2. During expiration, there is no splitting, and only a single S2 is heard.
Fixed splitting, on the other hand, is a feature of atrial septal defect (ASD), not VSD. This occurs when P2 is delayed and comes after A2 during both inspiration and expiration. Reversed splitting is associated with severe aortic stenosis and occurs when A2 comes after P2. these heart sounds and their associations with different heart conditions can aid in the diagnosis and management of VSD.
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This question is part of the following fields:
- Paediatrics
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Question 40
Correct
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What is the term used to describe the force exerted by a muscle that causes a portion of the bone to detach from its point of insertion?
Your Answer: Avulsion fracture
Explanation:Types of Fractures
Avulsion fracture happens when a muscle pulls a part of the bone away from its usual attachment site due to a breaking force. On the other hand, pathological fracture occurs in a bone that is weakened or damaged by a disease. Meanwhile, torus fracture, also known as greenstick or ripple fracture, is a type of fracture that occurs on one side of the bone and is commonly seen in children. Lastly, a stress fracture is a microscopic fracture that results from repeated jarring and overuse of a bone. These types of fractures have different causes and characteristics, but they all require proper medical attention to ensure proper healing and recovery.
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This question is part of the following fields:
- Surgery
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Question 41
Incorrect
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A 48-year-old woman presents with a 10-day history of fever, sinus pain and fullness, bilateral yellow nasal discharge and difficulty smelling. Prior to this episode she describes having a minor cold, with sore throat and clear nasal discharge. She has no past medical history. On examination, her temperature is 38.2 °C and there is mild tenderness to palpation over the maxillofacial area. There are no nasal polyps. Her throat appears normal.
What should be included in the management of this patient's condition?Your Answer: IV antibiotics
Correct Answer: Paracetamol
Explanation:Managing Acute Sinusitis: Treatment Options and Antibiotic Use
Acute sinusitis is a common condition that can cause discomfort and pain. Self-care measures such as paracetamol or ibuprofen can be used to manage symptoms of pain or fever. However, if symptoms persist for around ten days or more without improvement, a high-dose nasal corticosteroid may be prescribed for 14 days. While nasal corticosteroids may improve symptoms, they are not likely to affect how long they last and could cause systemic effects.
IV antibiotics should only be used in severe cases of systemic infection, intraorbital or periorbital complications, or intracranial complications. Systematic reviews and meta-analyses have shown that antibiotics, when compared with placebo, did not significantly increase the proportion of people in whom symptoms were cured or improved at 3–5 days follow-up. At 7–15 days follow-up, moderate quality evidence showed a statistically significant difference in effectiveness, but the clinical difference was small. This was not evident in the longer term.
For acute sinusitis following a cold, symptoms for <10 days are more commonly associated with a cold rather than viral or bacterial acute sinusitis. Prolonged symptoms (for around ten days or more without improvement) can be caused by either viral (more likely) or bacterial acute sinusitis. Only 0.5–2% of viral sinusitis is complicated by bacterial infection. Even then bacterial sinusitis is usually self-limiting and does not routinely need antibiotics. There is no evidence that topical antibiotics are useful in acute or chronic sinusitis. Understanding Treatment Options and Antibiotic Use for Acute Sinusitis
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This question is part of the following fields:
- ENT
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Question 42
Correct
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A 65-year-old man with known essential hypertension presents to the Emergency Department with facial swelling, difficulty breathing and stridor. He says it all started this morning and he does not remember eating anything unusual and does not have any food allergies as far as he can remember. He denies any history of asthma and does not smoke. None of his medications have been changed recently. He takes antihypertensive medications and statins.
Which medication is the most likely to have caused these side effects?Your Answer: Ramipril
Explanation:Antihypertensive Medications: Side-Effects and Adverse Reactions
Ramipril, an ACE inhibitor antihypertensive medication, is associated with angioedema, which is characterized by facial swelling, difficulty breathing, and stridor. Amlodipine, a calcium channel blocker, can cause ankle swelling and fatigue. Thiazides, another class of antihypertensive, can increase the risk of hyperglycemia and diabetes, and cause hypokalemia, but are not associated with angioedema. Atenolol, a beta-blocker, can cause abdominal discomfort and erectile dysfunction, but not angioedema. Doxazosin, an alpha-blocker, can cause dizziness, hypotension, headache, and abdominal discomfort, but not angioedema. It is important to be aware of the potential side-effects and adverse reactions of antihypertensive medications when prescribing and monitoring patients.
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This question is part of the following fields:
- Pharmacology
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Question 43
Correct
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What is the definition of healing by secondary intention, which is the final stage of tissue response to injury involving regeneration and repair?
Your Answer: Wounds close by contraction and epithelialization due to tissue loss
Explanation:Understanding Different Types of Wound Healing
Primary Healing: This type of healing occurs in wounds that are clean and have clear-cut edges that can be closely approximated. The wound is closed with sutures, staples, or adhesive strips, and healing occurs quickly with minimal scarring.
Secondary Healing: This type of healing occurs in wounds that are frequently contaminated or poorly delineated. The skin and tissues are left open for a short period of time before being approximated. Healing occurs by contraction and epithelialization due to tissue loss, and scarring is more significant.
Partial Thickness Healing: This type of healing involves epithelial cells from the dermal edges, hair follicles, and sebaceous glands replicating to cover the exposed area. It occurs in wounds that only affect the top layer of skin and typically heals without scarring.
Delayed Primary Healing: This type of healing occurs in wounds that are contaminated or have a high risk of infection. The wound is left open for a few days to allow for drainage and cleaning before being closed with sutures or staples. Healing occurs by a combination of primary and secondary healing, and scarring may be more significant.
Keloid Scarring: This occurs when excessive scar tissue grows, forming a smooth, hard layer that extends beyond the boundaries of the original wound. Keloid scars can be itchy, painful, and may require medical treatment to reduce their appearance.
Understanding the different types of wound healing can help individuals better care for their wounds and manage scarring.
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This question is part of the following fields:
- Plastics
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Question 44
Correct
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A 65-year-old man with benign prostatic hyperplasia complains of lower abdominal pain and difficulty urinating. Upon catheter insertion, over 2L of clear urine is drained, providing immediate pain relief. Three hours later, the patient reports pale pink urine color but is otherwise feeling well with stable vital signs. What is the best course of action for management?
Your Answer: Monitor - no immediate action required
Explanation:If the patient is stable, decompression haematuria does not require further management. It is a common occurrence after catheterisation for chronic urinary retention and typically resolves on its own within a few days. Monitoring the patient is important to ensure the bleeding does not worsen. Bladder washouts and irrigation are not necessary in this case. Tranexamic acid is not recommended for haematuria as it can cause bladder outflow obstruction. Red blood cell transfusion is only necessary if the patient becomes haemodynamically unstable or if there is a significant drop in haemoglobin levels.
Understanding Chronic Urinary Retention
Chronic urinary retention is a condition that develops gradually and is usually painless. It can be classified into two types: high pressure retention and low pressure retention. High pressure retention is often caused by bladder outflow obstruction and can lead to impaired renal function and bilateral hydronephrosis. On the other hand, low pressure retention does not affect renal function and does not cause hydronephrosis.
When chronic urinary retention is diagnosed, catheterisation may be necessary to relieve the pressure in the bladder. However, this can lead to decompression haematuria, which is a common side effect. This occurs due to the rapid decrease in pressure in the bladder and usually does not require further treatment.
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This question is part of the following fields:
- Surgery
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Question 45
Incorrect
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A newborn preterm-baby is observed to be jaundiced and having difficulty with feeding by the attending midwife. Bilirubin levels are measured, which rapidly increase throughout the day despite initiating phototherapy. The pregnancy was complicated by preterm labor; the mother also has a 3-year old child who is well and had no complications at birth. A direct Coombs test is performed and found to be positive; subsequently Rhesus haemolytic disease of the newborn is confirmed. What is the best example of the underlying cause of haemolysis in this preterm baby?
Your Answer: Type III hypersensitivity reaction causing red cell destruction
Correct Answer: IgG antibodies attacking the infants red cells
Explanation:Understanding the Causes of Haemolytic Disease of the Newborn
Haemolytic disease of the newborn is a condition that occurs when a mother’s antibodies attack her infant’s red blood cells. This can happen due to a variety of reasons, including rhesus factor incompatibility and immune complex deposition.
Rhesus factor incompatibility occurs when a rhesus-negative mother has previously been sensitised to the rhesus antigen, usually from a previous rhesus-positive pregnancy or blood transfusion. In subsequent pregnancies, IgG antibodies made by the mother due to previous exposure can cross the placenta and attack the infant’s red blood cells.
Immune complex deposition, which is a type III hypersensitivity reaction, can also cause haemolysis. This occurs when immune complexes deposit in tissues and trigger an inflammatory response. Examples of conditions that can cause this type of reaction include systemic lupus erythematosus and farmer’s lung.
It’s important to note that haemolysis in haemolytic disease of the newborn is triggered by maternal IgG antibodies, not IgE antibodies. Anaphylactic reactions, which are triggered by IgE antibodies, are a separate issue.
Understanding the causes of haemolytic disease of the newborn is crucial for proper diagnosis and treatment. Pregnant women should be screened for rhesus factor incompatibility and other potential risk factors to prevent this condition from occurring.
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This question is part of the following fields:
- Immunology
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Question 46
Correct
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A 25 year old woman presents to her GP with breast pain. She gave birth 3 weeks ago and is exclusively breastfeeding. She reports a 4 day history of increasing pain in her left breast, which has not improved with continued feeding and expressing. During examination, she appears healthy, but her temperature is 38.5ºC. There is a small area of redness above the left nipple, which is sensitive to touch. She has no known allergies.
What is the best course of action for management?Your Answer: Oral flucloxacillin & encourage to continue breastfeeding
Explanation:Lactation mastitis is a prevalent inflammatory condition of the breast that can have infectious or non-infectious origins. The primary cause is milk stasis, which can occur due to either overproduction or insufficient removal.
In cases of non-infectious mastitis, the accumulation of milk leads to an inflammatory response. Occasionally, an infection may develop through retrograde spread via a lactiferous duct or a traumatised nipple, with Staphylococcus aureus being the most common organism.
Symptoms of lactation mastitis include breast pain (usually unilateral) accompanied by an erythematosus, warm, and tender area. Patients may also experience fever and flu-like symptoms.
The first-line approach to managing lactation mastitis is conservative, involving analgesia and encouraging effective milk removal (either through continued breastfeeding or expressing from the affected side) to prevent further milk stasis. It is also crucial to ensure proper positioning and attachment during feeding.
If symptoms do not improve after 12-24 hours of conservative management, antibiotics should be prescribed. The first-line choice is oral flucloxacillin (500 mg four times a day for 14 days), or erythromycin if the patient is allergic to penicillin. Co-amoxiclav is the second-line choice.
In cases where conservative and antibiotic management do not improve symptoms, other more serious causes, such as inflammatory breast cancer, should be considered. (Source – CKS mastitis)
Breastfeeding Problems and Their Management
Breastfeeding is a natural process, but it can come with its own set of challenges. Some of the minor problems that breastfeeding mothers may encounter include frequent feeding, nipple pain, blocked ducts, and nipple candidiasis. These issues can be managed by seeking advice on proper positioning, trying breast massage, and using appropriate medication.
Mastitis is a more serious problem that affects around 1 in 10 breastfeeding women. It is characterized by symptoms such as fever, nipple fissure, and persistent pain. Treatment involves the use of antibiotics, such as flucloxacillin, for 10-14 days. Breastfeeding or expressing milk should continue during treatment to prevent complications such as breast abscess.
Breast engorgement is another common problem that causes breast pain in breastfeeding women. It occurs in the first few days after birth and affects both breasts. Hand expression of milk can help relieve the discomfort of engorgement. Raynaud’s disease of the nipple is a less common problem that causes nipple pain and blanching. Treatment involves minimizing exposure to cold, using heat packs, and avoiding caffeine and smoking.
If a breastfed baby loses more than 10% of their birth weight in the first week of life, it may be a sign of poor weight gain. This should prompt consideration of the above breastfeeding problems and an expert review of feeding. Monitoring of weight should continue until weight gain is satisfactory.
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This question is part of the following fields:
- Obstetrics
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Question 47
Correct
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A 4-year-old girl comes to the doctor's office with a diffuse, blanching, erythematosus rash all over her trunk, arms, and legs. She has been running a fever and feeling generally cranky and tired for about a week. Additionally, she has been experiencing abdominal discomfort for the past few days. During the examination, the doctor notices that the skin on her palms and soles is peeling, and her tongue is red with a white coating. What is the probable diagnosis?
Your Answer: Kawasaki disease
Explanation:Kawasaki disease can be identified by a combination of symptoms, including a high fever lasting more than five days, red palms with peeling skin, and a strawberry tongue. If a fever lasts for more than five days and is accompanied by desquamation and strawberry tongue, it is likely to be Kawasaki disease. Scarlet fever also causes skin peeling and strawberry tongue, but the fever is not as prolonged. Meningitis causes a non-blanching rash and more severe symptoms, while Henoch-Schonlein purpura presents with a non-blanching rash, abdominal pain, joint pain, and haematuria.
Understanding Kawasaki Disease
Kawasaki disease is a rare type of vasculitis that primarily affects children. It is important to identify this disease early on as it can lead to serious complications, such as coronary artery aneurysms. The disease is characterized by a high-grade fever that lasts for more than five days and is resistant to antipyretics. Other symptoms include conjunctival injection, bright red, cracked lips, strawberry tongue, cervical lymphadenopathy, and red palms and soles that later peel.
Diagnosis of Kawasaki disease is based on clinical presentation as there is no specific diagnostic test available. Management of the disease involves high-dose aspirin, which is one of the few indications for aspirin use in children. Intravenous immunoglobulin is also used as a treatment option. Echocardiogram is the initial screening test for coronary artery aneurysms, rather than angiography.
Complications of Kawasaki disease can be serious, with coronary artery aneurysm being the most common. It is important to recognize the symptoms of Kawasaki disease early on and seek medical attention promptly to prevent potential complications.
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This question is part of the following fields:
- Paediatrics
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Question 48
Correct
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A 75-year-old woman is prescribed intravenous gentamicin for a severe Pseudomonas infection. What is the most crucial side-effect to monitor for during her treatment?
Your Answer: Ototoxicity + nephrotoxicity
Explanation:Gentamicin is a type of antibiotic belonging to the aminoglycoside class. It is not easily soluble in lipids, which is why it is administered either parentally or topically. Gentamicin is commonly used to treat infective endocarditis and otitis externa. However, it is important to note that gentamicin can cause adverse effects such as ototoxicity and nephrotoxicity. Ototoxicity is caused by damage to the auditory or vestibular nerve, which can be irreversible. Nephrotoxicity occurs when gentamicin accumulates in the body, particularly in patients with renal failure, leading to acute tubular necrosis. The risk of toxicity is increased when gentamicin is used in conjunction with furosemide. Therefore, lower doses and more frequent monitoring are required.
It is important to note that gentamicin is contraindicated in patients with myasthenia gravis. Due to the potential for toxicity, it is crucial to monitor plasma concentrations of gentamicin. Both peak levels (measured one hour after administration) and trough levels (measured just before the next dose) are monitored. If the trough level is high, the interval between doses should be increased. If the peak level is high, the dose should be decreased. By carefully monitoring gentamicin levels, healthcare providers can ensure that patients receive the appropriate dose without experiencing adverse effects.
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This question is part of the following fields:
- Pharmacology
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Question 49
Correct
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A 55-year-old man, with a known abdominal aortic aneurysm presents for his annual review.
What size abdominal aortic aneurysm (AAA) would indicate the need for urgent elective surgery of the aneurysm?Your Answer: An increase of >1 cm per year
Explanation:Monitoring and Repair of Abdominal Aortic Aneurysms
Abdominal aortic aneurysms (AAA) are a potentially life-threatening condition that require careful monitoring and, in some cases, elective repair. The current guidelines for monitoring and repair depend on the size of the aneurysm and its rate of growth.
An increase of >1 cm per year indicates a need for elective repair, as does an AAA with a diameter greater than 5.5 cm. Symptomatic aneurysms or those causing complications also require repair. Endovascular repair is often preferred over open surgery.
For AAAs between 3.0-5.4 cm, monitoring via ultrasound is required. AAAs between 4.5-5.4 cm require more frequent monitoring (every 3 months) than those between 3.0-4.4 cm (annual monitoring). An increase of 0.5-1 cm per year does not necessarily indicate a need for repair.
Regular monitoring and timely repair can help prevent the potentially fatal complications of AAA.
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This question is part of the following fields:
- Vascular
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Question 50
Correct
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A 67-year-old woman complains of weakness in her thighs and shoulders, making it difficult for her to climb stairs and lift objects. She has also observed a purple rash, particularly on her face and eyelids. During the examination, she has painful and itchy papules on her metacarpophalangeal joints. Which antibody is expected to be positive in this patient?
Your Answer: Anti-Jo-1
Explanation:The presence of the anti-Jo-1 antibody suggests that the patient is likely suffering from dermatomyositis, a condition characterized by muscle weakness in the proximal areas and a blue-purple rash on the face, upper eyelids, and trunk. The papules on the small joints of the hands, known as Gottron papules, are a telltale sign of this condition. While anti-CCP is often positive in rheumatoid arthritis, which causes pain and stiffness in the small joints of the hands and feet, anti-La and anti-Ro are commonly positive in Sjogren’s syndrome, which is characterized by dry mouth and eyes and swelling of the parotid gland.
Dermatomyositis is a condition that causes inflammation and muscle weakness, as well as distinct skin lesions. It can occur on its own or be associated with other connective tissue disorders or underlying cancers, particularly ovarian, breast, and lung cancer. Screening for cancer is often done after a diagnosis of dermatomyositis. Polymyositis is a variant of the disease that does not have prominent skin manifestations.
The skin features of dermatomyositis include a photosensitive macular rash on the back and shoulders, a heliotrope rash around the eyes, roughened red papules on the fingers’ extensor surfaces (known as Gottron’s papules), extremely dry and scaly hands with linear cracks on the fingers’ palmar and lateral aspects (known as mechanic’s hands), and nail fold capillary dilation. Other symptoms may include proximal muscle weakness with tenderness, Raynaud’s phenomenon, respiratory muscle weakness, interstitial lung disease (such as fibrosing alveolitis or organizing pneumonia), dysphagia, and dysphonia.
Investigations for dermatomyositis typically involve testing for ANA antibodies, which are positive in around 80% of patients. Approximately 30% of patients have antibodies to aminoacyl-tRNA synthetases, including antibodies against histidine-tRNA ligase (also called Jo-1), antibodies to signal recognition particle (SRP), and anti-Mi-2 antibodies.
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This question is part of the following fields:
- Musculoskeletal
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