-
Question 1
Correct
-
A 35-year-old woman presents to the emergency department with a 24-hour history of fever, headache, and neck stiffness. She has no significant past medical history and no allergies.
Her vital signs are currently stable, and there are no visible rashes on examination. The patient is fully alert and oriented with a GCS of 15/15.
After consulting with a senior physician, it is determined that a lumbar puncture is necessary. However, due to departmental constraints, it is unlikely that the procedure can be performed within the next hour.
What is the most appropriate next step in managing this patient?Your Answer: IV ceftriaxone immediately
Explanation:When patients are suspected of having viral meningitis, doctors often prescribe antibiotics as a precaution until the results of a lumbar puncture are available. This is especially true for elderly patients or those with weakened immune systems. If a young patient presents with symptoms such as fever, headache, and neck stiffness, doctors may perform tests like Kernig’s or Brudzinski’s signs to help diagnose the condition. However, because bacterial meningitis can be very dangerous, doctors may start treatment before a definitive diagnosis is made. Even if the likelihood of bacterial meningitis is low, delaying treatment could have serious consequences for the patient. Viral meningitis is more common and less severe than bacterial meningitis, but it can be difficult to distinguish between the two based on symptoms alone. Therefore, doctors may prescribe antibiotics as a precaution if a lumbar puncture cannot be performed within an hour. In this case, intravenous ceftriaxone would be the appropriate treatment. IV fluconazole is used to treat severe fungal infections, but it is unlikely to be necessary in an otherwise healthy patient. IV amoxicillin is typically reserved for patients who are immunocompromised, under 6 months old, or over 60 years old, as it can help protect against Listeria monocytogenes.
Understanding Viral Meningitis
Viral meningitis is a condition characterized by inflammation of the leptomeninges and cerebrospinal fluid in the subarachnoid space caused by a viral agent. It is a more common and less severe condition compared to bacterial meningitis. Although approximately 3,000 cases of confirmed viral meningitis are reported yearly, the actual number of cases is likely to be much higher as patients often do not seek medical attention.
The causes of viral meningitis include non-polio enteroviruses such as coxsackievirus and echovirus, mumps, herpes simplex virus (HSV), cytomegalovirus (CMV), herpes zoster viruses, HIV, and measles. Patients at the extremes of age, immunocompromised patients, and intravenous drug users are at higher risk of developing viral meningitis.
Common symptoms of viral meningitis include headache, neck stiffness, photophobia, confusion, and fever. Focal neurological deficits on examination and seizures suggest a meningoencephalitis. A lumbar puncture is necessary to confirm the diagnosis, and cerebrospinal fluid findings in viral meningitis include lymphocyte-predominant cell differential, glucose levels of 2.8 â 4.2 mmol/L or 2/3 paired serum glucose mmol/L, and protein levels of 0.5 – 1 g/dL.
Management of viral meningitis involves supportive treatment while awaiting the results of the lumbar puncture. If there is any suspicion of bacterial meningitis or encephalitis, broad-spectrum antibiotics with CNS penetration such as ceftriaxone and acyclovir intravenously should be administered. Generally, viral meningitis is self-limiting, and symptoms improve over the course of 7 – 14 days. acyclovir may be used if the patient is suspected of having meningitis secondary to HSV. Complications are rare in immunocompetent patients.
-
This question is part of the following fields:
- Medicine
-
-
Question 2
Correct
-
A 29-year-old male patient comes to you with a complaint of an erythematosus rash in his groin area. He reports that the rash was initially raised and red, but it has now healed and left behind hyperpigmentation. Interestingly, he mentions that he has experienced this same rash in the same location before. Upon further questioning, he reveals that he had taken ibuprofen for a strained ankle prior to the onset of the rash. What is the probable cause of this presentation?
Your Answer: Fixed drug eruption
Explanation:Fixed Drug Eruptions: Recurring Lesions Caused by Medications
Fixed drug eruptions are a type of skin reaction that occurs when a person takes a medication to which they are allergic. These eruptions are characterized by circular, violaceous, and oedematous plaques that appear in the same area where the offending drug was given. The lesions usually occur within 30 minutes to eight hours after drug administration and can be found in various parts of the body, with the hands, feet, and genitalia being the most common locations.
One of the distinguishing features of fixed drug eruptions is that the lesions tend to recur in the same area whenever the person takes the offending drug again. The lesions may resolve on their own, but they often leave behind macular hyperpigmentation, which is a darkening of the skin in the affected area. In some cases, perioral and periorbital lesions may also occur.
Overall, fixed drug eruptions can be a frustrating and uncomfortable experience for those who suffer from them. It is important to identify the offending drug and avoid it in the future to prevent further outbreaks.
-
This question is part of the following fields:
- Dermatology
-
-
Question 3
Incorrect
-
A 25-year-old woman comes to the emergency department with suicidal ideation after a fight with her partner. She has a history of relationship problems and frequently argues with loved ones. She denies having any paranoid thoughts or unusual beliefs but reports hearing a voice in her head that describes her negative thoughts. Upon examination, you observe several superficial scars on her forearms. There is no evidence of delusions or abnormal speech. What is the most probable diagnosis?
Your Answer: Paranoid personality disorder
Correct Answer: Borderline personality disorder
Explanation:The correct answer is borderline personality disorder, which is characterized by a history of self-harm and intense relationships that alternate between idealization and devaluation. Symptoms also include mood swings and the possibility of paranoid thoughts and hallucinations.
Paranoid personality disorder is not the correct answer, as it primarily involves difficulty trusting others and interpreting situations as threatening. While the patient in question does exhibit some paranoia, their other symptoms are more indicative of borderline personality disorder.
Schizoid personality disorder is also not the correct answer, as it involves difficulty forming close relationships and a preference for solitude. The patient in question has close relationships with others.
Schizophrenia is not the correct answer either, as it primarily involves delusions, hallucinations, and disordered thinking.
Personality disorders are a set of personality traits that are maladaptive and interfere with normal functioning in life. It is estimated that around 1 in 20 people have a personality disorder, which are typically categorized into three clusters: Cluster A, which includes Odd or Eccentric disorders such as Paranoid, Schizoid, and Schizotypal; Cluster B, which includes Dramatic, Emotional, or Erratic disorders such as Antisocial, Borderline (Emotionally Unstable), Histrionic, and Narcissistic; and Cluster C, which includes Anxious and Fearful disorders such as Obsessive-Compulsive, Avoidant, and Dependent.
Paranoid individuals exhibit hypersensitivity and an unforgiving attitude when insulted, a reluctance to confide in others, and a preoccupation with conspiratorial beliefs and hidden meanings. Schizoid individuals show indifference to praise and criticism, a preference for solitary activities, and emotional coldness. Schizotypal individuals exhibit odd beliefs and magical thinking, unusual perceptual disturbances, and inappropriate affect. Antisocial individuals fail to conform to social norms, deceive others, and exhibit impulsiveness, irritability, and aggressiveness. Borderline individuals exhibit unstable interpersonal relationships, impulsivity, and affective instability. Histrionic individuals exhibit inappropriate sexual seductiveness, a need to be the center of attention, and self-dramatization. Narcissistic individuals exhibit a grandiose sense of self-importance, lack of empathy, and excessive need for admiration. Obsessive-compulsive individuals are occupied with details, rules, and organization to the point of hampering completion of tasks. Avoidant individuals avoid interpersonal contact due to fears of criticism or rejection, while dependent individuals have difficulty making decisions without excessive reassurance from others.
Personality disorders are difficult to treat, but a number of approaches have been shown to help patients, including psychological therapies such as dialectical behavior therapy and treatment of any coexisting psychiatric conditions.
-
This question is part of the following fields:
- Psychiatry
-
-
Question 4
Correct
-
A mother brings her four-month-old baby to the GP, concerned about episodes of vomiting and crying which she believes may be due to a tummy ache. The mother reports that her baby vomits after most feeds and cries constantly, even when laid down. The vomiting is non-projectile and non-bilious. The baby was born at 39 weeks via vaginal delivery, and the pregnancy was uncomplicated. The baby lives with both parents. On examination, the baby's weight is appropriate for their growth chart. Their heart rate is 140 bpm, O2 saturation is 97%, respiratory rate is 42/min, and temperature is 37.6ÂșC. What is the most likely diagnosis?
Your Answer: Gastro-oesophageal reflux
Explanation:The most likely diagnosis for an infant under 8 weeks old who is experiencing milky vomits after feeds, especially when laid flat, and excessive crying is gastro-oesophageal reflux (GORD). This is because the symptoms are typical of GORD, with non-projectile and non-bilious vomits and normal observations. Cow’s milk protein intolerance is a possible differential, but there is no history of stool changes or rashes, and it usually presents earlier in life. Duodenal atresia is unlikely as it typically presents with projectile and bilious vomiting and earlier in life. Gastroenteritis is also less likely as it is commonly caused by a viral infection with associated fever and tachycardia, and there is no mention of stool changes in the history.
Understanding Gastro-Oesophageal Reflux in Children
Gastro-oesophageal reflux is a common cause of vomiting in infants, with around 40% of babies experiencing some degree of regurgitation. However, certain risk factors such as preterm delivery and neurological disorders can increase the likelihood of developing this condition. Symptoms typically appear before 8 weeks of age and include vomiting or regurgitation, milky vomits after feeds, and excessive crying during feeding. Diagnosis is usually made based on clinical observation.
Management of gastro-oesophageal reflux in children involves advising parents on proper feeding positions, ensuring the infant is not being overfed, and considering a trial of thickened formula or alginate therapy. Proton pump inhibitors are not recommended unless the child is experiencing unexplained feeding difficulties, distressed behavior, or faltering growth. Ranitidine, previously used as an alternative to PPIs, has been withdrawn from the market due to the discovery of carcinogens in some products. Prokinetic agents should only be used with specialist advice.
Complications of gastro-oesophageal reflux in children include distress, failure to thrive, aspiration, frequent otitis media, and dental erosion in older children. In severe cases where medical treatment is ineffective, fundoplication may be considered. It is important for parents and caregivers to understand the symptoms and management options for gastro-oesophageal reflux in children to ensure the best possible outcomes for their little ones.
-
This question is part of the following fields:
- Paediatrics
-
-
Question 5
Correct
-
A 26-year-old woman who is 25 weeks pregnant with her second child is scheduled for a blood glucose check at the antenatal clinic due to her history of gestational diabetes during her first pregnancy. After undergoing the oral glucose tolerance test, her fasting glucose level is found to be 7.2mmol/L and her 2hr glucose level is 8 mmol/L. What is the best course of action for management?
Your Answer: Insulin
Explanation:The correct answer for the management of gestational diabetes is insulin. If the fasting glucose level is equal to or greater than 7 mmol/L at the time of diagnosis, insulin should be initiated. Diet and exercise/lifestyle advice alone is not sufficient for managing gestational diabetes and medication is necessary. Empagliflozin and glibenclamide are not appropriate treatments for gestational diabetes. Glibenclamide may only be considered if the patient has declined insulin.
Gestational diabetes is a common medical disorder affecting around 4% of pregnancies. Risk factors include a high BMI, previous gestational diabetes, and family history of diabetes. Screening is done through an oral glucose tolerance test, and diagnostic thresholds have recently been updated. Management includes self-monitoring of blood glucose, diet and exercise advice, and medication if necessary. For pre-existing diabetes, weight loss and insulin are recommended, and tight glycemic control is important. Targets for self-monitoring include fasting glucose of 5.3 mmol/l and 1-2 hour post-meal glucose levels.
-
This question is part of the following fields:
- Obstetrics
-
-
Question 6
Correct
-
A 68-year-old woman with chronic congestive cardiac failure and renal impairment complains of a red, hot, swollen toe of sudden onset. This has occurred on a number of occasions. Her current medications include aspirin and azathioprine. The diagnosis is felt to be gout and she is prescribed colchicine.
What is the most likely side-effect for the patient?Your Answer: Diarrhoea
Explanation:Managing Side-Effects of Medications in a Patient with Multiple Comorbidities
It is common for patients with multiple medical conditions to be prescribed a combination of medications. However, this polypharmacy can sometimes contribute to a patient’s symptoms or make it challenging to treat one condition without negatively impacting another. In this case, the patient has acute gout and is taking non-steroidal anti-inflammatory drugs (NSAIDs) as the standard treatment. However, NSAIDs can worsen renal impairment and fluid retention, which can worsen congestive cardiac failure (CCF). Colchicine is an alternative, but it can cause severe diarrhoea in around one in five patients. Prophylactic therapy for gout is also difficult due to a major interaction between azathioprine and allopurinol, which is commonly used as a xanthine-oxidase inhibitor. Allopurinol slows down the breakdown of purines, which produces uric acid, and can affect the metabolism of azathioprine. Palpitations are not listed as a side-effect in the BNF, but a rash is more likely to occur with allopurinol and is an indication to withdraw treatment. Increased joint discomfort may occur with allopurinol treatment initiation, but this is not a known effect of colchicine. Polydipsia is not listed as a side-effect in the BNF.
-
This question is part of the following fields:
- Pharmacology
-
-
Question 7
Correct
-
Which complication is the least frequently linked to Colles' fracture?
Your Answer: Non-union
Explanation:Complications of Colles’ Fracture
Colles’ fracture is a type of fracture that occurs at the lower end of the radius, often accompanied by a fracture of the ulnar styloid process. It is commonly seen in elderly women who fall on their outstretched hand. While this type of fracture can be treated, there are three main complications that can arise.
The first complication is malunion, which occurs when the displacement is not fully corrected during manipulation. This can lead to deformity and limited wrist movements, delayed rupture of the extensor tendon, and carpal tunnel syndrome. The second complication is stiffness of the fingers and wrist, which can occur if the finger joints are not exercised during the immobilization period. Finally, Sudeck’s atrophy is a rare complication that causes severe pain in the hand and wrist, swelling, and circulatory disturbance in the hand with oedema, resulting in painful stiffness of all joints of the hands.
It is important to be aware of these complications when treating Colles’ fracture to ensure proper healing and prevent long-term issues.
-
This question is part of the following fields:
- Surgery
-
-
Question 8
Incorrect
-
A patient who underwent abdominal surgery 12 hours ago now has a temperature of 38.2ÂșC. Their blood pressure is 118/78 mmHg, heart rate 68 beats per minute and respiratory rate 16 breaths/minute. The patient reports feeling pain around the incisional wound. On examination, the wound appears red and their chest is clear. What is the probable reason for the fever in this scenario?
Your Answer: Wound infection
Correct Answer: Physiological reaction to operation
Explanation:The most likely cause of a fever developing within the first 24 hours after surgery in an otherwise healthy patient is a physiological reaction to the operation. This is due to the inflammatory response to tissue damage caused by the surgery. Other potential causes such as cellulitis, pneumonia, and pulmonary embolism are less likely due to the absence of other symptoms and vital sign changes. Cellulitis may present with red and tender wounds, but without changes in other vital signs, it is not the likely cause. Pneumonia and pulmonary embolism typically occur after 48 hours and 2-10 days respectively, and would be accompanied by changes in heart and respiratory rates, which were not observed in this patient.
Post-operative pyrexia, or fever, can occur after surgery and can be caused by various factors. Early causes of post-op pyrexia, which typically occur within the first five days after surgery, include blood transfusion, cellulitis, urinary tract infection, and a physiological systemic inflammatory reaction that usually occurs within a day following the operation. Pulmonary atelectasis is also often listed as an early cause, but the evidence to support this link is limited. Late causes of post-op pyrexia, which occur more than five days after surgery, include venous thromboembolism, pneumonia, wound infection, and anastomotic leak.
To remember the possible causes of post-op pyrexia, it is helpful to use the memory aid of the 4 W’s: wind, water, wound, and what did we do? (iatrogenic). This means that the causes can be related to respiratory issues (wind), urinary tract or other fluid-related problems (water), wound infections or complications (wound), or something that was done during the surgery or post-operative care (iatrogenic). It is important to identify the cause of post-op pyrexia and treat it promptly to prevent further complications. This information is based on a peer-reviewed publication available on the National Center for Biotechnology Information website.
-
This question is part of the following fields:
- Surgery
-
-
Question 9
Correct
-
A 65-year-old man comes to the clinic complaining of lethargy. He denies any other systemic symptoms. During the physical examination, a non-pulsatile mass is palpated in the right lower quadrant of his abdomen, which does not move with respiration. Additionally, he has pale conjunctivae. What is the best course of action for management?
Your Answer: Urgent referral to local colorectal service
Explanation:The presence of an abdominal mass along with symptoms of lethargy and pallor may indicate the likelihood of colorectal cancer, which could also lead to anaemia.
Referral Guidelines for Colorectal Cancer
Colorectal cancer is a serious condition that requires prompt diagnosis and treatment. In 2015, the National Institute for Health and Care Excellence (NICE) updated their referral guidelines for patients suspected of having colorectal cancer. According to these guidelines, patients who are 40 years or older with unexplained weight loss and abdominal pain, 50 years or older with unexplained rectal bleeding, or 60 years or older with iron deficiency anemia or change in bowel habit should be referred urgently to colorectal services for investigation. Additionally, patients who test positive for occult blood in their feces should also be referred urgently.
An urgent referral should also be considered for patients who have a rectal or abdominal mass, unexplained anal mass or anal ulceration, or are under 50 years old with rectal bleeding and any of the following unexplained symptoms/findings: abdominal pain, change in bowel habit, weight loss, or iron deficiency anemia.
The NHS offers a national screening program for colorectal cancer, which involves sending eligible patients aged 60 to 74 years in England and 50 to 74 years in Scotland FIT tests through the post. FIT is a type of fecal occult blood test that uses antibodies to detect and quantify the amount of human blood in a single stool sample. Patients with abnormal results are offered a colonoscopy.
The FIT test is also recommended for patients with new symptoms who do not meet the 2-week criteria listed above. For example, patients who are 50 years or older with unexplained abdominal pain or weight loss, under 60 years old with changes in their bowel habit or iron deficiency anemia, or 60 years or older who have anemia even in the absence of iron deficiency. Early detection and treatment of colorectal cancer can significantly improve patient outcomes, making it important to follow these referral guidelines.
-
This question is part of the following fields:
- Surgery
-
-
Question 10
Incorrect
-
A 25-year-old woman is seeking a referral to an obstetrician as she has been trying to conceive and her menstrual period is now one month late. She has tested positive on a home pregnancy test. She has a history of seropositive rheumatoid arthritis for the past two years and is currently only taking hydroxychloroquine as methotrexate was stopped six months ago in anticipation of conception.
During the physical examination, swelling is noted on the second and third metacarpophalangeal joints of her right hand. The pregnancy test is positive. What is the most appropriate treatment for her at this time?Your Answer: Discontinue hydroxychloroquine
Correct Answer: No change in therapy
Explanation:Pregnant patients with rheumatoid arthritis (RA) can safely continue using hydroxychloroquine as a treatment without any changes. While the medication does cross the placenta, it has not been shown to cause harm to the fetus at the doses used for RA treatment. Etanercept may be considered if there is a significant flare of disease during pregnancy, but it is not necessary at this time. Leflunomide is strictly contraindicated due to its high teratogenicity. Methotrexate must be discontinued at least 3 months before pregnancy as it is highly teratogenic and abortifacient. Steroids are not necessary for this patient who is not experiencing a flare.
Hydroxychloroquine: Uses and Adverse Effects
Hydroxychloroquine is a medication commonly used in the treatment of rheumatoid arthritis and systemic/discoid lupus erythematosus. It is similar to chloroquine, which is used to treat certain types of malaria. However, hydroxychloroquine has been found to cause bull’s eye retinopathy, which can result in severe and permanent visual loss. Recent data suggests that this adverse effect is more common than previously thought, and the most recent guidelines recommend baseline ophthalmological examination and annual screening, including colour retinal photography and spectral domain optical coherence tomography scanning of the macula. Despite this risk, hydroxychloroquine may still be used in pregnant women if needed. Patients taking this medication should be asked about visual symptoms and have their visual acuity monitored annually using a standard reading chart.
-
This question is part of the following fields:
- Musculoskeletal
-
00
Correct
00
Incorrect
00
:
00
:
00
Session Time
00
:
00
Average Question Time (
Secs)