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Question 1
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You are a general practitioner and a 85-year-old woman presents with a complaint of severe itching in her left nipple. During examination, you observe that the nipple is red and there is some discharge with blood stains on her bra. What would be the best course of action for management?
Your Answer: Imaging and biopsy
Explanation:When a patient presents with skin changes resembling eczema in Paget’s disease of the nipple, it is important to consider the possibility of breast cancer. In this case, the best course of action would be to conduct imaging and biopsy to rule out malignancy, especially in an elderly patient. Emollients and hydrocortisone are typically used to treat eczema.
Paget’s disease of the nipple is a condition that affects the nipple and is associated with breast cancer. It is present in a small percentage of patients with breast cancer, typically around 1-2%. In half of these cases, there is an underlying mass lesion, and 90% of those patients will have an invasive carcinoma. Even in cases where there is no mass lesion, around 30% of patients will still have an underlying carcinoma. The remaining cases will have carcinoma in situ.
One key difference between Paget’s disease and eczema of the nipple is that Paget’s disease primarily affects the nipple and later spreads to the areolar, whereas eczema does the opposite. Diagnosis of Paget’s disease involves a punch biopsy, mammography, and ultrasound of the breast. Treatment will depend on the underlying lesion causing the disease.
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This question is part of the following fields:
- Surgery
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Question 2
Incorrect
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A 45-year-old man, who is a heavy smoker, was seen in the Surgical Outpatient Clinic, complaining of severe pain in both legs, even at rest. On examination, he had chronic ulceration of his toes.
Which of the following conditions is he most likely to have?Your Answer: Granulomatosis with polyangiitis (GPA)
Correct Answer: Buerger’s disease
Explanation:The patient is suffering from Buerger’s disease, also known as thromboangiitis obliterans. This disease affects medium-sized and small arteries, particularly the tibial and radial arteries, and can extend to veins and nerves of the extremities. It is most commonly seen in heavy cigarette-smoking men, but there has been an increase in cases among women due to changing smoking trends. The disease typically begins before the age of 35 and causes severe pain, even at rest, due to neural involvement. Chronic ulcerations and gangrene can occur as later complications. Abstinence from smoking in the early stages can prevent further attacks. Other possible conditions, such as granulomatosis with polyangiitis, Kawasaki’s disease, polyarteritis nodosa, and Takayasu’s arthritis, have been ruled out based on the patient’s symptoms and medical history.
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This question is part of the following fields:
- Vascular
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Question 3
Incorrect
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A 26-year-old nursing student has visited her GP clinic for her first cervical screening. She is curious about the testing procedure and knows that the sample will be screened for high-risk strains of HPV. The student inquires with the practice nurse about the next steps if the smear test comes back positive in the lab.
What follow-up test will be conducted if the smear test shows high-risk HPV (hrHPV) positivity?Your Answer: Colposcopy testing
Correct Answer: Cytology testing
Explanation:Cytological examination of a cervical smear sample is only conducted if it tests positive for high risk HPV (hrHPV). If the sample is negative for hrHPV, there is no need for cytology testing.
The cervical cancer screening program has evolved to include HPV testing, which allows for further risk stratification. A negative hrHPV result means a return to normal recall, while a positive result requires cytological examination. Abnormal cytology results lead to colposcopy, while normal cytology results require a repeat test at 12 months. Inadequate samples require a repeat within 3 months, and two consecutive inadequate samples lead to colposcopy. Treatment for CIN typically involves LLETZ or cryotherapy. Individuals who have been treated for CIN should be invited for a test of cure repeat cervical sample 6 months after treatment.
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This question is part of the following fields:
- Gynaecology
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Question 4
Correct
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A 72-year-old woman is brought to the Emergency Department from a nursing home with confusion, fever and flank pain. Her temperature is 38.5 °C, blood pressure 82/48 mmHg, pulse rate 123 bpm and respiration rate 27 breaths per minute. Physical examination reveals dry mucous membranes and flank tenderness. Urinalysis shows 50–100 leukocytes and many bacteria per high-powered field.
Which of the following is most likely to improve survival for this patient?Your Answer: Aggressive fluid resuscitation
Explanation:The Importance of Timing in Fluid Resuscitation for Severe Sepsis: Debunking Myths about Haemodynamic Monitoring, Albumin Infusion, and Haemoglobin Levels
When it comes to treating severe sepsis, timing is crucial. Aggressive fluid resuscitation within the first six hours can significantly improve a patient’s chances of survival. This was demonstrated in a landmark study by Rivers and colleagues, which found that early goal-directed therapy resulted in higher survival rates than delayed resuscitation attempts.
However, not all interventions are equally effective. Haemodynamic monitoring with a pulmonary artery catheter, for example, has not been shown to increase survival in septic patients. Similarly, there is no evidence that albumin infusion reduces mortality, and in fact, some studies have shown increased mortality rates in patients who received albumin solutions.
Maintaining a haemoglobin level above 120 g/l is also not supported by evidence. While giving blood may be part of resuscitation for anaemic patients in shock, aiming for a specific haemoglobin level is not necessary.
Finally, there is no data to support the idea that maintaining a lower Pa(CO2) would increase survival in septic patients. In summary, aggressive fluid resuscitation within the first six hours is crucial for treating severe sepsis, but not all interventions are equally effective or supported by evidence.
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This question is part of the following fields:
- Acute Medicine And Intensive Care
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Question 5
Incorrect
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A 29-year-old woman with rheumatoid arthritis has not responded to methotrexate and sulfasalazine and is now being considered for etanercept injections. What potential side effect is linked to the use of etanercept?
Your Answer: Tendonitis
Correct Answer: Reactivation of tuberculosis
Explanation:The reactivation of TB is a possible side effect of TNF-α inhibitors.
Managing Rheumatoid Arthritis with Disease-Modifying Therapies
The management of rheumatoid arthritis (RA) has significantly improved with the introduction of disease-modifying therapies (DMARDs) in the past decade. Patients with joint inflammation should start a combination of DMARDs as soon as possible, along with analgesia, physiotherapy, and surgery. In 2018, NICE updated their guidelines for RA management, recommending DMARD monotherapy with a short course of bridging prednisolone as the initial step. Monitoring response to treatment is crucial, and NICE suggests using a combination of CRP and disease activity to assess it. Flares of RA are often managed with corticosteroids, while methotrexate is the most widely used DMARD. Other DMARDs include sulfasalazine, leflunomide, and hydroxychloroquine. TNF-inhibitors are indicated for patients with an inadequate response to at least two DMARDs, including methotrexate. Etanercept, infliximab, and adalimumab are some of the TNF-inhibitors available, each with their own risks and administration methods. Rituximab and Abatacept are other DMARDs that can be used, but the latter is not currently recommended by NICE.
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This question is part of the following fields:
- Musculoskeletal
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Question 6
Incorrect
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A 3-month-old baby girl has just been registered with the surgery. Her parents have recently arrived in the UK from Syria, seeking refuge. She received a Hepatitis B vaccination before leaving Syria.
What other vaccinations should she be provided with now?Your Answer: Diphtheria, tetanus, pertussis, polio, Haemophilus influenzae type b, hepatitis B and meningitis C
Correct Answer: Diphtheria, tetanus, pertussis, polio, Haemophilus influenzae type b, hepatitis B, rotavirus and meningitis B
Explanation:Paediatric Vaccination Schedule for 2-Month-Old Babies in the UK
The correct vaccination regime for a 2-month-old baby in the UK includes diphtheria, tetanus, pertussis, polio, Haemophilus influenzae type b, hepatitis B, rotavirus and meningitis B. However, the guidelines have been updated since 2015, and now include pneumococcus (PCV) vaccination at 12 weeks. Meningitis B is vaccinated against at 8 weeks, 16 weeks, and one year, while meningitis C and PCV are vaccinated against at 12 months. Rotavirus and meningitis B are also recommended in the vaccination schedule at 8 weeks old, but meningitis C is not included in this particular regime.
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This question is part of the following fields:
- Paediatrics
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Question 7
Correct
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A 21-year-old male presents to the medical assessment unit with a 6-week history of increasing frequency of diarrhoea and abdominal pain. The patient is now opening his bowels up to eight times a day, and he is also needing to get up during the night to pass motions. He describes the stool as watery, with some mucous and blood. He is also suffering with intermittent cramping abdominal pain. He has had no recent foreign travel, and no other contacts have been unwell with similar symptoms. He has lost almost 6 kg in weight. He has no other past medical history of note.
Inflammatory bowel disease is high on the list of differentials.
Which one of the following is most commonly associated with Ulcerative colitis (UC)?Your Answer: Rectal involvement
Explanation:Differences between Ulcerative Colitis and Crohn’s Colitis
Ulcerative colitis (UC) and Crohn’s colitis are two types of inflammatory bowel disease (IBD) that affect the colon and rectum. However, there are several differences between the two conditions.
Rectal Involvement
UC usually originates in the rectum and progresses proximally, while Crohn’s colitis can affect any part of the gastrointestinal tract, including the duodenum.Transmural Inflammation
Crohn’s colitis involves transmural inflammation, while UC typically affects only the submucosa or mucosa.Anal Fistulae and Abscesses
Crohn’s colitis is more likely to cause anal fistulae and abscesses due to its transmural inflammation, while UC is less prone to these complications.Duodenal Involvement
UC usually affects only the colon, while Crohn’s colitis can involve the duodenum. As a result, colectomy is often curative in UC but not in Crohn’s disease.Symptoms and Severity
Both conditions can cause bloody diarrhea, weight loss, and abdominal pain. However, the severity of UC is measured by the number of bowel movements per day, abdominal pain and distension, signs of toxicity, blood loss and anemia, and colon dilation.Understanding the Differences between Ulcerative Colitis and Crohn’s Colitis
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This question is part of the following fields:
- Gastroenterology
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Question 8
Correct
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A 7-year-old girl is brought to the clinic by her mother who reports that her daughter becomes breathless when climbing stairs at home. The mother is concerned as her daughter is unable to keep up with her peers. During the examination, multiple small bruises of varying ages are observed on both lower legs. The patient is afebrile and appears to be in good health. A soft systolic murmur is heard on the left sternal edge during cardiac examination. Palpation of the abdomen reveals a mass in both the left and right hypochondriac regions. What is the most likely diagnosis?
Your Answer: Acute lymphoid leukaemia
Explanation:Children under the age of 6 are less likely to be affected by TTP, which typically occurs in individuals between the ages of 30 and 50 and is often accompanied by neurological and renal symptoms. ITP is characterized by bleeding and petechiae, with low platelet counts but normal levels of other blood cells. DIC is typically a result of an underlying condition such as trauma, burns, or sepsis, and is often accompanied by systemic symptoms and circulatory collapse.
Acute lymphoblastic leukaemia (ALL) is a type of cancer that commonly affects children and accounts for 80% of childhood leukaemias. It is most prevalent in children between the ages of 2-5 years, with boys being slightly more affected than girls. Symptoms of ALL can be divided into those caused by bone marrow failure, such as anaemia, neutropaenia, and thrombocytopenia, and other features like bone pain, splenomegaly, and hepatomegaly. Fever is also present in up to 50% of new cases, which may indicate an infection or a constitutional symptom. Testicular swelling may also occur.
There are three types of ALL: common ALL, T-cell ALL, and B-cell ALL. Common ALL is the most common type, accounting for 75% of cases, and is characterized by the presence of CD10 and a pre-B phenotype. Poor prognostic factors for ALL include age less than 2 years or greater than 10 years, a white blood cell count greater than 20 * 109/l at diagnosis, T or B cell surface markers, non-Caucasian ethnicity, and male sex.
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This question is part of the following fields:
- Paediatrics
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Question 9
Incorrect
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A 55-year-old woman comes to her GP complaining of fatigue, weakness, and worsening itchiness. Upon examination, there are no significant findings. Blood tests are ordered and the results are as follows:
Test Result
Full blood count Normal
Renal profile Normal
Alkaline phosphatase Elevated
γ-glutamyl transferase Elevated
Alanine and aspartate aminotransferase Normal
Bilirubin Slightly elevated
Antimitochondrial antibody MÂ2 (AMA) Positive
Anti-smooth muscle antibody (ASMA) Negative
Anti-liver/kidney microsomal antibody (anti-LKM) Negative
Hepatitis screen Negative
HIV virus type 1 and type 2 RNA Negative
What is the most probable diagnosis?Your Answer: Autoimmune hepatitis (AIH)
Correct Answer: Primary biliary cholangitis (PBC)
Explanation:Autoimmune Liver Diseases: Differentiating PBC, PSC, and AIH
Autoimmune liver diseases, including primary biliary cholangitis (PBC), primary sclerosing cholangitis (PSC), and autoimmune hepatitis (AIH), can present with non-specific symptoms and insidious onset. However, certain demographic and serological markers can help differentiate between them.
PBC is characterized by chronic granulomatous inflammation of small intrahepatic bile ducts, leading to progressive cholestasis, cirrhosis, and portal hypertension. It is often diagnosed incidentally or presents with lethargy and pruritus. AMA M2 subtype positivity is highly specific for PBC, and treatment involves cholestyramine for itching and ursodeoxycholic acid. Liver transplantation is the only curative treatment.
PSC is a disorder of unknown etiology characterized by non-malignant, non-bacterial inflammation, fibrosis, and strictures of the intra- and extrahepatic biliary tree. It is more common in men and frequently found in patients with ulcerative colitis. AMA is negative, and diagnosis is based on MRCP or ERCP showing a characteristic beaded appearance of the biliary tree.
AIH is a disorder of unknown cause characterized by autoantibodies directed against hepatocyte surface antigens. It can present acutely with signs of fulminant autoimmune disease or insidiously. There are three subtypes with slightly different demographic distributions and prognoses, and serological markers such as ASMA, anti-LKM, and anti-soluble liver antigen antibodies can help differentiate them.
A hepatitis screen is negative in this case, ruling out hepatitis C. A pancreatic head tumor would present with markedly elevated bilirubin and a normal autoimmune screen.
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This question is part of the following fields:
- Gastroenterology
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Question 10
Incorrect
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A 75-year-old man, with metastatic prostate cancer presented with a week's history of severe weakness, obtundation, and poor oral intake.
One month ago, CT of the head revealed multiple intracerebral lesions. He underwent cranial irradiation and received dexamethasone, 12 mg orally daily.
On examination he is unwell and disoriented. Temperature is 36.6°C, pulse is 100/min, respiratory rate is 28/min and blood pressure is 110/60 mmHg supine. Chest examination and heart examination are normal. There is lower abdominal tenderness, especially in the suprapubic area. Diffuse muscle weakness is noted. No lateralizing neurologic signs or abnormal reflexes are noted.
Investigations reveal:
White cell count 19.5 ×109/L (4-11)
Plasma glucose 40 mmol/L (3.0-6.0)
Urea 25 mmol/L (2.5-7.5)
Creatinine 160 µmol/L (60-110)
Calcium 2.2 mmol/L (2.2-2.6)
Sodium 130 mmol/L (137-144)
Potassium 5.0 mmol/L (3.5-4.9)
Bicarbonate 24 mmol/L (20-28)
Urinalysis Glucose +++
Protein ++
Moderate bacteria seen
Cultures of blood and urine are requested and he is treated with an intravenous sliding scale insulin.
Which of the following IV fluids would you prescribe in conjunction with the insulin sliding scale for this patient?Your Answer: 5% Dextrose
Correct Answer: Normal saline
Explanation:Management of Excessive Hyperglycaemia in a Dehydrated Patient
This patient is experiencing excessive hyperglycaemia, which is contributing to her symptoms and is related to hyperosmolarity. However, her normal bicarbonate levels suggest that she does not have Hyperosmolar Hyperglycaemic State (HHS), but rather dehydration. Additionally, her marked hyperglycaemia is likely caused by the dexamethasone she is taking, which is causing insulin resistance.
To manage her condition, the patient requires IV normal saline to address her dehydration, along with insulin to regulate her blood glucose levels. Once her blood glucose levels have decreased to 10 mmol/L, she can switch to IV dextrose. This approach will help to address her crystalloid requirements and manage her hyperglycaemia effectively.
In summary, managing excessive hyperglycaemia in a dehydrated patient requires a careful approach that addresses both the underlying cause of the hyperglycaemia and the patient’s hydration status. By providing IV fluids and insulin as needed, healthcare providers can help to regulate the patient’s blood glucose levels and improve their overall condition.
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This question is part of the following fields:
- Emergency Medicine
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Question 11
Correct
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You are asked to see a patient on the high dependency unit following an elective repair of her abdominal aortic aneurysm. Her last haemoglobin was 75 g/L (130-180) and your consultant has told you to give her four units of blood urgently.
The nurse informs you that the patient's date of birth is incorrect on the blood she is about to give, although all other details are correct. The patient mentions that this has happened before. She has previously received six units of blood in theatre without any issues.
What course of action should you take?Your Answer: Stop the blood transfusion
Explanation:Importance of Correct Patient Identification in Transfusions
Transfusions are a crucial aspect of medical treatment, but incorrect patient identification of samples and blood products can lead to fatal consequences. In fact, it is the most common cause of death following transfusion. Therefore, it is essential to ensure that patient identification is accurate and consistent throughout the process.
If there are any inconsistencies or doubts about the patient’s identity, it is crucial to stop the transfusion immediately and inform the laboratory. This step can prevent serious harm or even death. It is better to err on the side of caution and take the necessary steps to ensure that the patient receives the correct blood product.
In emergency situations where blood is needed immediately, and there is uncertainty about the patient’s identity, group O negative blood may be used. However, this should only be a temporary solution until the patient’s identity is confirmed, and the appropriate blood product can be administered.
In conclusion, patient identification is a critical aspect of transfusions, and any errors or inconsistencies should be addressed immediately to prevent harm to the patient. It is better to take the necessary precautions and ensure that the patient receives the correct blood product, even if it means delaying the transfusion.
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This question is part of the following fields:
- Anaesthetics & ITU
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Question 12
Correct
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You come across an 11-year-old boy with asthma who has been using a salbutamol inhaler for the past year. He reports needing it when he plays sports outside, especially in colder weather. His mother is worried as he has been using it more frequently in the last 6 months and has had to use it at night. She has also noticed that he sometimes wakes up coughing and his wheezing is worse in the morning. On average, he uses his inhaler 3-4 times a week. After examining the patient and finding no abnormalities, what would be the most appropriate next step to step up his treatment?
Your Answer: Start a paediatric low-dose inhaled corticosteroid
Explanation:Managing Asthma in Children: NICE Guidelines
Asthma management in children has been updated by NICE in 2017, following the 2016 BTS guidelines. The new guidelines for children aged 5-16 are similar to those for adults, with a stepwise approach for treatment. For newly-diagnosed asthma, short-acting beta agonist (SABA) is recommended. If symptoms persist, a combination of SABA and paediatric low-dose inhaled corticosteroid (ICS) is used. Leukotriene receptor antagonist (LTRA) is added if symptoms still persist, followed by long-acting beta agonist (LABA) if necessary. Maintenance and reliever therapy (MART) is used as a combination of ICS and LABA for daily maintenance therapy and symptom relief. For children under 5 years old, clinical judgement plays a greater role in diagnosis. The stepwise approach is similar to that for older children, with an 8-week trial of paediatric moderate-dose ICS before adding LTRA. If symptoms persist, referral to a paediatric asthma specialist is recommended.
It should be noted that NICE does not recommend changing treatment for well-controlled asthma patients simply to adhere to the latest guidelines. The definitions of low, moderate, and high-dose ICS have also changed, with different definitions for adults and children. For children, <= 200 micrograms budesonide or equivalent is considered a paediatric low dose, 200-400 micrograms is a moderate dose, and > 400 micrograms is a high dose. Overall, the new NICE guidelines provide a clear and concise approach to managing asthma in children.
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This question is part of the following fields:
- Paediatrics
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Question 13
Correct
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An 80-year-old man visits his GP with his daughter, concerned about his increasing forgetfulness. He used to be able to manage his own medications, but now forgets to take them regularly. He has also been misplacing items around the house and forgetting important appointments. When his daughter tries to remind him of these things, he becomes defensive and irritable.
His lab results show normal levels of vitamin B12, folate, thyroid hormones, and electrolytes. He does not screen positive for depression. His MMSE score is 20/30, and his brain MRI reveals general brain atrophy.
What is the most appropriate treatment for this patient?Your Answer: Donepezil
Explanation:First-Line Management for Alzheimer’s Disease: Medications to Consider
Alzheimer’s disease (AD) is a common form of dementia that primarily affects older adults. A patient’s clinical presentation, laboratory markers, MMSE results, and neuroimaging can help diagnose AD. Once diagnosed, the first-line management for AD typically involves cholinesterase inhibitors such as donepezil, rivastigmine, or galantamine. These medications can provide modest symptomatic relief for some patients with AD. Memantine, an NMDA receptor antagonist, can be used as adjunctive treatment or monotherapy for patients who do not tolerate cholinesterase inhibitors. Risperidone, an atypical antipsychotic, is used to manage psychotic manifestations of AD, but it is not indicated in this scenario. Tacrine, a centrally-acting anticholinesterase medication, is rarely used due to its potent side-effect profile. Trazodone, an atypical antidepressant, can be used as adjunctive treatment for insomnia in patients with AD but is not indicated as monotherapy. Overall, the first-line management for AD involves cholinesterase inhibitors, with memantine as an alternative option.
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This question is part of the following fields:
- Neurology
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Question 14
Correct
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A toddler is brought to the emergency room with breathing difficulties. The medical team wants to evaluate the child's condition.
At what point should the APGAR score be evaluated?Your Answer: 1 and 5 minutes of age
Explanation:According to NICE, it is recommended that APGAR scores are regularly evaluated at both 1 and 5 minutes after a baby is born. The APGAR score is a measure of a newborn’s overall health, based on their pulse, breathing, color, muscle tone, and reflexes. A higher score indicates better health, with scores ranging from 0-3 (very low), 4-6 (moderately low), and 7-10 (good). If a baby’s score is less than 5 at 5 minutes, additional APGAR scores should be taken at 10, 15, and 30 minutes, and umbilical cord blood gas sampling may be necessary. It is important to note that the correct time for assessing APGAR scores is at 1 and 5 minutes after birth, and none of the other options are accurate.
The Apgar score is a tool used to evaluate the health of a newborn baby. It is recommended by NICE to be assessed at 1 and 5 minutes after birth, and again at 10 minutes if the initial score is low. The score is based on five factors: pulse, respiratory effort, color, muscle tone, and reflex irritability. A score of 0-3 is considered very low, 4-6 is moderate low, and 7-10 indicates that the baby is in good health. The score helps healthcare professionals quickly identify any potential issues and provide appropriate care.
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This question is part of the following fields:
- Paediatrics
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Question 15
Incorrect
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What is the dermatological condition that is linked to neurofibromatosis type 1?
Your Answer: Vitiligo
Correct Answer: Café au lait spots
Explanation:Neurofibromatosis Type 1 and Type 2
Neurofibromatosis is a genetic disorder that affects the 17th chromosome and is inherited in an autosomal dominant manner. There are two types of neurofibromatosis: type 1 and type 2. Type 1 is also known as von Recklinghausen’s disease and is characterized by flat, light-brown skin lesions called café au lait spots, axillary freckling, small purple-colored lesions called dermal neurofibromas, nodular neurofibromas that can cause paraesthesia when compressed, and Lisch nodules on the iris. Complications of type 1 neurofibromatosis include nerve compression, phaeochromocytoma, mild learning disability, and epilepsy.
Type 2 neurofibromatosis is much rarer than type 1 and also demonstrates autosomal dominant inheritance. In addition to café au lait spots, individuals with type 2 may also develop vestibular schwannomas (acoustic neuromas) and premature cataracts. It is important to note that while both types of neurofibromatosis share some similarities, they also have distinct differences in their clinical presentation and associated complications. these differences can aid in accurate diagnosis and management of these conditions.
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This question is part of the following fields:
- Dermatology
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Question 16
Incorrect
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A 30-year-old primigravida gives birth to her male infant at 40+1 weeks via ventouse-assisted vaginal delivery. The estimated blood loss is 650ml and her uterus is well contracted. An episiotomy was performed during delivery, and a tear involving perineal skin and muscle with less than 50% damage to the external anal sphincter is found on postpartum vaginal examination. What is the best course of action for this patient?
Your Answer: Urgent transfusion and admission to maternal intensive care
Correct Answer: Perineal tear repair in theatre
Explanation:Repair of third degree perineal tears should be carried out in a theatre by a clinician who has received appropriate training. This is because category 3 and 4 tears pose a risk of infection and have a significant impact on the patient’s health. Poor healing of perineal wounds can lead to faecal incontinence, which is a potential complication of grade 3 and 4 tears. It is advisable to pack the perineal wound for haemostasis before repairing the tear, as this will help achieve better haemostasis with sutures. Healing of perineal tears by secondary intent is not recommended, as it can result in poor healing, infection, and faecal incontinence. Additionally, the vascular nature of the perineum and anus increases the likelihood of ongoing haemorrhage if the wound is not healed. In cases of category 1 and 2 tears (involving the skin only or skin and perineal muscle), perineal tear repair can be performed immediately on the maternity ward if the clinician feels comfortable and there is adequate lighting.
Perineal tears are a common occurrence during childbirth, and the Royal College of Obstetricians and Gynaecologists (RCOG) has developed guidelines to classify them based on their severity. First-degree tears are superficial and do not require any repair, while second-degree tears involve the perineal muscle and require suturing by a midwife or clinician. Third-degree tears involve the anal sphincter complex and require repair in theatre by a trained clinician, with subcategories based on the extent of the tear. Fourth-degree tears involve the anal sphincter complex and rectal mucosa and also require repair in theatre by a trained clinician.
There are several risk factors for perineal tears, including being a first-time mother, having a large baby, experiencing a precipitant labour, and having a shoulder dystocia or forceps delivery. It is important for healthcare providers to be aware of these risk factors and to provide appropriate care and management during childbirth to minimize the risk of perineal tears. By following the RCOG guidelines and providing timely and effective treatment, healthcare providers can help ensure the best possible outcomes for both mother and baby.
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This question is part of the following fields:
- Obstetrics
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Question 17
Incorrect
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A 54-year-old man contacts his GP regarding visual alterations in his left eye. He has been encountering flashes/floaters and spider webs for the past 2 days, and now there is some darkening on the periphery of vision. Additionally, he has observed that straight lines appear somewhat jagged. There is no associated pain or injury. The patient is in good health and has no chronic medical conditions.
What is the probable diagnosis for the aforementioned symptoms?Your Answer: Posterior vitreous detachment
Correct Answer: Retinal detachment
Explanation:If you experience peripheral vision loss accompanied by spider webs and flashing lights, it could be a sign of retinal detachment. This condition is often described as a curtain coming down over your vision and requires immediate attention from an ophthalmologist. Additionally, you may notice floaters or string-like shapes, and straight lines may appear distorted due to the retina detaching from the choroid.
Sudden loss of vision can be a scary symptom for patients, as it may indicate a serious issue or only be temporary. Transient monocular visual loss (TMVL) is a term used to describe a sudden, brief loss of vision that lasts less than 24 hours. The most common causes of sudden, painless loss of vision include ischaemic/vascular issues (such as thrombosis, embolism, and temporal arthritis), vitreous haemorrhage, retinal detachment, and retinal migraine.
Ischaemic/vascular issues, also known as ‘amaurosis fugax’, have a wide range of potential causes, including large artery disease, small artery occlusive disease, venous disease, and hypoperfusion. Altitudinal field defects are often seen, and ischaemic optic neuropathy can occur due to occlusion of the short posterior ciliary arteries. Central retinal vein occlusion is more common than arterial occlusion and can be caused by glaucoma, polycythaemia, or hypertension. Central retinal artery occlusion is typically caused by thromboembolism or arthritis and may present with an afferent pupillary defect and a ‘cherry red’ spot on a pale retina.
Vitreous haemorrhage can be caused by diabetes, bleeding disorders, or anticoagulants and may present with sudden visual loss and dark spots. Retinal detachment may be preceded by flashes of light or floaters, which are also common in posterior vitreous detachment. Differentiating between posterior vitreous detachment, retinal detachment, and vitreous haemorrhage can be challenging, but each has distinct features such as photopsia and floaters for posterior vitreous detachment, a dense shadow that progresses towards central vision for retinal detachment, and large bleeds causing sudden visual loss for vitreous haemorrhage.
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This question is part of the following fields:
- Ophthalmology
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Question 18
Correct
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A 5-year-old girl presents to the emergency department with a fever and a blotchy rash. According to her mother, the rash started behind her ears and has now spread all over her body. During the examination, you observe clusters of white lesions on the buccal mucosa. The child has not received any vaccinations. What is the potential complication that this child may face?
Your Answer: Pneumonia
Explanation:Pneumonia is a common complication of measles and can be fatal, especially in children. The measles virus can damage the lower respiratory tract epithelium, which weakens the local immunity in the lungs and leads to pneumonia. Other complications of measles include otitis media, encephalitis, subacute sclerosing panencephalitis, keratoconjunctivitis, corneal ulceration, diarrhea, increased risk of appendicitis, and myocarditis. Treatment for measles involves rest, fluids, and pain relief. It is important to inform the local Health Protection Team (HPT) and avoid school or work for at least four days after the rash appears. Mumps can cause complications such as orchitis, oophoritis, pancreatitis, and viral meningitis. Symptoms of mumps include fever, headache, swelling of the parotid glands, and general malaise. Kawasaki disease, on the other hand, can lead to coronary artery aneurysm and presents with symptoms such as high fever, rash, conjunctival injection, red and cracked hands, feet, and lips, and swollen lymph glands. It is important to note that otitis media, not otitis externa, is a complication of measles.
Measles: A Highly Infectious Viral Disease
Measles is a viral disease caused by an RNA paramyxovirus. It is one of the most infectious known viruses and is spread through aerosol transmission. The disease has an incubation period of 10-14 days and is infective from the prodromal phase until four days after the rash starts. Measles is now rare in developed countries due to immunization programs, but outbreaks can occur when vaccination rates drop, such as during the MMR controversy of the early 2000s.
The disease is characterized by a prodromal phase, which includes irritability, conjunctivitis, fever, and Koplik spots. The latter typically develop before the rash and are white spots on the buccal mucosa. The rash starts behind the ears and then spreads to the whole body, becoming a discrete maculopapular rash that may become blotchy and confluent. Desquamation may occur after a week, typically sparing the palms and soles. Diarrhea occurs in around 10% of patients.
Measles is mainly managed through supportive care, and admission may be considered in immunosuppressed or pregnant patients. The disease is notifiable, and public health should be informed. Complications of measles include otitis media, pneumonia (the most common cause of death), encephalitis (typically occurring 1-2 weeks following the onset of the illness), subacute sclerosing panencephalitis (very rare, may present 5-10 years following the illness), febrile convulsions, keratoconjunctivitis, corneal ulceration, diarrhea, increased incidence of appendicitis, and myocarditis.
If an unimmunized child comes into contact with measles, MMR should be offered within 72 hours. Vaccine-induced measles antibody develops more rapidly than that following natural infection.
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This question is part of the following fields:
- Paediatrics
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Question 19
Correct
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A 14-year-old boy comes to the clinic with scaly patches on his scalp. Upon examination, circular areas of hair loss with scaling and raised margins, measuring 2-5 cm in diameter, are observed. There is no scarring. What is the probable cause of this condition in the patient?
Your Answer: Tinea capitis
Explanation:Causes of Non-Scarring and Scarring Alopecia
Non-scarring alopecia is a condition where hair loss occurs without any visible scarring on the scalp. The most common causes of this type of alopecia include telogen effluvium, androgenetic alopecia, alopecia areata, tinea capitis, and traumatic alopecia. In some cases, non-scarring alopecia can also be associated with lupus erythematosus and secondary syphilis.
Tinea capitis, caused by invasion of hairs by dermatophytes, most commonly Trichophyton tonsurans, is a common cause of non-scarring alopecia. This type of alopecia is characterized by hair loss in circular patches on the scalp.
On the other hand, scarring alopecia is a condition where hair loss occurs with visible scarring on the scalp. This type of alopecia is more frequently the result of a primary cutaneous disorder such as lichen planus, folliculitis decalvans, cutaneous lupus, or linear scleroderma (morphea). Scarring alopecia can be permanent and irreversible, making early diagnosis and treatment crucial.
In conclusion, the different causes of non-scarring and scarring alopecia is important in determining the appropriate treatment plan for patients experiencing hair loss.
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This question is part of the following fields:
- Dermatology
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Question 20
Incorrect
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A 78-year-old male presents to the emergency department with severe pain in his left thigh. He has a history of recurrent UTIs and currently has a catheter in place. Upon examination, he is febrile and experiences significant tenderness in the left thigh, making it difficult to move his knee. Blood and bone cultures both come back positive, leading to a diagnosis of osteomyelitis. What organism is most likely responsible for this infection?
Your Answer:
Correct Answer: Staphylococcus aureus
Explanation:Understanding Osteomyelitis: Types, Causes, and Treatment
Osteomyelitis is a bone infection that can be classified into two types: haematogenous and non-haematogenous. Haematogenous osteomyelitis is caused by bacteria that enter the bloodstream and is usually monomicrobial. It is more common in children, with vertebral osteomyelitis being the most common form in adults. Risk factors include sickle cell anaemia, intravenous drug use, immunosuppression, and infective endocarditis. On the other hand, non-haematogenous osteomyelitis results from the spread of infection from adjacent soft tissues or direct injury to the bone. It is often polymicrobial and more common in adults, with risk factors such as diabetic foot ulcers, pressure sores, diabetes mellitus, and peripheral arterial disease.
Staphylococcus aureus is the most common cause of osteomyelitis, except in patients with sickle-cell anaemia where Salmonella species predominate. To diagnose osteomyelitis, MRI is the imaging modality of choice, with a sensitivity of 90-100%. Treatment for osteomyelitis involves a six-week course of flucloxacillin. Clindamycin is an alternative for patients who are allergic to penicillin.
In summary, osteomyelitis is a bone infection that can be caused by bacteria entering the bloodstream or spreading from adjacent soft tissues or direct injury to the bone. It is more common in children and adults with certain risk factors. Staphylococcus aureus is the most common cause, and MRI is the preferred imaging modality for diagnosis. Treatment involves a six-week course of flucloxacillin or clindamycin for penicillin-allergic patients.
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This question is part of the following fields:
- Musculoskeletal
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Question 21
Incorrect
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You see a 50-year-old male patient for discussion of his recent oral glucose tolerance test. He has a family history of type 2 diabetes and he wanted to be tested for it. He has no symptoms. You inform him that based on the result of his oral glucose tolerance test, he has impaired glucose tolerance. What is the accepted definition of impaired glucose tolerance?
Your Answer:
Correct Answer:
Explanation:WHO Recommendations for Diabetes and Intermediate Hyperglycaemia Diagnosis
The World Health Organization (WHO) has established diagnostic criteria for diabetes and intermediate hyperglycaemia. According to the 2006 recommendations, a fasting plasma glucose level of 7.0 mmol/L (126 mg/dL) or higher, or a 2-hour plasma glucose level of 11.1 mmol/L (200 mg/dL) or higher indicates diabetes. On the other hand, impaired glucose tolerance (IGT) is diagnosed when the fasting plasma glucose level is less than 7.0 mmol/L (126 mg/dL) and the 2-hour plasma glucose level is between 7.8 and 11.1 mmol/L (140 mg/dL and 200 mg/dL). Impaired fasting glucose (IFG) is diagnosed when the fasting plasma glucose level is between 6.1 and 6.9 mmol/L (110 mg/dL to 125 mg/dL) and the 2-hour plasma glucose level is less than 7.8 mmol/L (140 mg/dL), if measured.
It is important to note that if the 2-hour plasma glucose level is not measured, the status of the individual is uncertain as diabetes or IGT cannot be excluded. These recommendations serve as a guide for healthcare professionals in diagnosing and managing diabetes and intermediate hyperglycaemia.
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This question is part of the following fields:
- Medicine
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Question 22
Incorrect
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A 54-year-old patient complains of dysphagia that has persisted for four weeks. The GP deems it necessary to urgently refer the patient for an endoscopy within two weeks. During the endoscopy, a suspicious lesion is observed in the middle third of the oesophagus. A biopsy of the lesion is taken and sent to the pathology for further examination.
What are some potential characteristics of a cancerous cell that may be observed under a microscope?Your Answer:
Correct Answer: Increased nuclear/cytoplasmic ratio
Explanation:Characteristics of Malignant Cells
Malignant cells possess distinct features that differentiate them from normal cells. These characteristics include an increased nuclear size, which results in an increased nuclear/cytoplasmic ratio. Additionally, malignant cells exhibit nuclear and cellular pleomorphism, which means that they lack cell differentiation. Another feature of malignant cells is an increased nuclear DNA content, which causes dark staining on H and E slides, also known as hyperchromatism. Prominent nucleoli or irregular chromatin distribution and the presence of mitotic figures are also common in malignant cells.
On the other hand, normal cells do not exhibit these features. They have a balanced nuclear/cytoplasmic ratio, and their nuclei are uniform in size and shape. Normal cells also have a well-defined cytoplasm and exhibit cell differentiation. These characteristics are essential for the proper functioning of normal cells and maintaining the overall health of the body.
In summary, the characteristics of malignant cells are distinct from those of normal cells. these features is crucial in the diagnosis and treatment of cancer.
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This question is part of the following fields:
- Histology
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Question 23
Incorrect
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A 65-year-old woman presented with worsening constipation. One year previously she had been discharged from hospital following an acute coronary syndrome and atrial fibrillation. She was treated with several new drugs in hospital and was adherent to all of them.
Which one of her medications is most likely to have caused her constipation?Your Answer:
Correct Answer: Verapamil
Explanation:Common Side-Effects of Medications for Cardiovascular Conditions
Verapamil, Ramipril, Aspirin, Nicorandil, and Simvastatin are medications commonly used in the treatment of cardiovascular conditions. However, they also come with some common side-effects that patients should be aware of.
Verapamil is a calcium channel blocker that can cause constipation, headache, hypotension, reflux symptoms, nausea, peripheral oedema, fatigue, atrioventricular block, flushing, and bradycardia.
Ramipril, an angiotensin-converting enzyme (ACE) inhibitor, can cause first-dose hypotension, dry cough, renal dysfunction, dizziness, and diarrhoea.
Aspirin, a blood thinner, can cause gastrointestinal bleeding, nosebleeds, reflux symptoms, and abdominal pain/cramping.
Nicorandil, a vasodilator, can cause mouth/skin/anal ulceration, headaches, dizziness, flushing, tachycardia, nausea, and vomiting.
Simvastatin, a cholesterol-lowering medication, can cause myopathy, deranged liver function tests/hepatitis, reflux symptoms, diarrhoea, gastrointestinal disturbance, and joint pains.
It is important for patients to be aware of these potential side-effects and to discuss any concerns with their healthcare provider.
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This question is part of the following fields:
- Pharmacology
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Question 24
Incorrect
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A 51-year-old man is admitted with an ischaemic left leg which is unviable and requires amputation. He becomes increasingly unwell while awaiting surgery, including experiencing episodes of difficulty breathing. An arterial blood gas (ABG) was taken.
pH 7.23, pO2 12.4, PCO2 ?, HCO3− ?, lactate 10.3 mmol/l.
What are the most likely PCO2 and HCO3−?Your Answer:
Correct Answer: PCO2 2.5 + HCO3− 17.5
Explanation:Interpreting ABG Results: Understanding Metabolic Acidosis
Metabolic acidosis is a common condition that can be identified through arterial blood gas (ABG) analysis. When interpreting ABG results, two key factors should be considered: the anion gap and the degree of respiratory compensation.
An abnormal anion gap (>12 mmol/l) suggests an exogenous source of acid, such as lactate, which can be caused by conditions like ischemia or drug overdose. The anion gap can be calculated using the formula (Na+ + K+) − (HCO3− + Cl−).
Respiratory compensation occurs quickly in response to metabolic acidosis, with the body attempting to get rid of CO2 through hyperventilation. However, complete compensation is rare and usually only partial.
When analyzing ABG results, it is important to note the levels of PCO2 and HCO3−. In cases of metabolic acidosis, HCO3− will be below normal limits, while PCO2 may be low due to respiratory compensation. A combination of PCO2 2.5 + HCO3− 17.5, for example, indicates profound metabolic acidosis with an exogenous source of acid (lactate) and respiratory compensation.
It is also important to note that a normal HCO3− level does not fit with metabolic acidosis. In cases where HCO3− is above normal limits, it suggests metabolic alkalosis instead.
Understanding ABG results is crucial for diagnosing and treating metabolic acidosis, as well as other respiratory and metabolic conditions.
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This question is part of the following fields:
- Clinical Biochemistry
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Question 25
Incorrect
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A 25-year-old female presents to her GP with symptoms of vaginal candidiasis, including 'cottage cheese'-like discharge, itching, and dyspareunia. She has had four previous presentations with similar symptoms in the past year. The patient is in good health and does not report any other symptoms. She is not taking any regular medications. What test would be most helpful in investigating a possible underlying cause for her recurrent vaginal candidiasis?
Your Answer:
Correct Answer: HbA1c
Explanation:In cases of recurrent vaginal candidiasis, it is recommended to consider a blood test to rule out diabetes as a potential underlying condition. Other predisposing factors such as immunosuppression, pregnancy, and antibiotic or steroid usage should also be evaluated. While HIV testing is important, a CD4+ T-cell count is not the first line investigation and HIV testing is typically done using antibody, antigen, or nucleotide testing. A full blood count may be useful to assess the patient’s general health, but it is not the most likely cause of recurrent vaginal candidiasis. HbA1c testing should be done to assess for diabetes mellitus, and a pregnancy test and HIV test may also be indicated. While a high vaginal swab can confirm the diagnosis, it will not provide information about any underlying diseases.
Vaginal candidiasis, also known as thrush, is a common condition that many women can diagnose and treat themselves. Candida albicans is responsible for about 80% of cases, while other candida species cause the remaining 20%. Although most women have no predisposing factors, certain factors such as diabetes mellitus, antibiotics, steroids, pregnancy, and HIV can increase the likelihood of developing vaginal candidiasis. Symptoms include non-offensive discharge resembling cottage cheese, vulvitis, itching, vulval erythema, fissuring, and satellite lesions. A high vaginal swab is not routinely indicated if the clinical features are consistent with candidiasis. Treatment options include local or oral therapy, with oral fluconazole 150 mg as a single dose being the first-line treatment according to NICE Clinical Knowledge Summaries. If there are vulval symptoms, a topical imidazole may be added to an oral or intravaginal antifungal. Pregnant women should only use local treatments. Recurrent vaginal candidiasis is defined as four or more episodes per year by BASHH. Compliance with previous treatment should be checked, and a high vaginal swab for microscopy and culture should be performed to confirm the diagnosis. A blood glucose test may be necessary to exclude diabetes, and differential diagnoses such as lichen sclerosus should be ruled out. An induction-maintenance regime involving oral fluconazole may be considered. Induction involves taking oral fluconazole every three days for three doses, while maintenance involves taking oral fluconazole weekly for six months.
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This question is part of the following fields:
- Gynaecology
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Question 26
Incorrect
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A 26-year-old woman comes to the clinic complaining of a headache and blurred vision that have been present for 2 days. Upon fundoscopy, it is discovered that she has optic neuritis on the right side. She had a previous episode of arm weakness 5 months ago that was also accompanied by blurred vision. What is the most probable diagnostic test for this patient?
Your Answer:
Correct Answer: MRI brain
Explanation:High dose steroids are the recommended treatment for acute optic neuritis, which is the likely cause of this woman’s symptoms. However, her symptoms suggest a possible diagnosis of multiple sclerosis (MS) as they are spread out over both space and time.
Optic neuritis is a condition that can be caused by multiple sclerosis, diabetes, or syphilis. It is characterized by a decrease in visual acuity in one eye over a period of hours or days, as well as poor color discrimination and pain that worsens with eye movement. Other symptoms include a relative afferent pupillary defect and a central scotoma. The condition can be diagnosed through an MRI of the brain and orbits with gadolinium contrast. Treatment typically involves high-dose steroids, and recovery usually takes 4-6 weeks. If an MRI shows more than three white-matter lesions, the risk of developing multiple sclerosis within five years is approximately 50%.
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This question is part of the following fields:
- Ophthalmology
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Question 27
Incorrect
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A 28-year-old woman with type 1 diabetes comes in for her yearly check-up. During the examination, her urine test shows positive results for protein. Upon reviewing her medical records, it is discovered that this is the first time she has had proteinuria. What further tests should be conducted to investigate this finding?
Your Answer:
Correct Answer: ACR (albumin:creatinine ratio) and microbiology
Explanation:Investigating Proteinuria in Diabetic Patients
Proteinuria or microalbuminuria is a significant finding in diabetic patients. It indicates an increased risk of developing diabetic nephropathy in type 1 diabetes and an additional risk factor for cardiovascular disease in type 2 diabetes. When a diabetic patient presents with proteinuria, it is crucial to rule out infection, which is a common cause of increased urinary protein excretion. A urine microbiology test can identify the presence of infection, while an albumin-to-creatinine ratio (ACR) can quantify the degree of proteinuria and allow for future monitoring. Although HbA1c, serum urea/creatinine, and plasma glucose are standard tests for monitoring diabetic patients, they do not help quantify urinary protein loss or exclude infection. A high HbA1c in this situation could indicate longstanding poor glycemic control or poor glycemic control for several weeks due to infection. Therefore, ACR and urine microbiology are the most useful investigations to investigate proteinuria in diabetic patients.
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This question is part of the following fields:
- Nephrology
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Question 28
Incorrect
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A 62-year-old man presents to Accident and Emergency with complaints of chest pain and shortness of breath, which is predominantly worse on the right side. He has been experiencing these symptoms for about 24 hours, but they have worsened since he woke up this morning. The patient reports that the pain is worse on inspiration and that he has never experienced chest pain before. He is mostly bedridden due to obesity but has no history of respiratory issues. The patient is currently receiving treatment for newly diagnosed prostate cancer. There is a high suspicion that he may have a pulmonary embolus (PE). His vital signs are as follows:
Temperature 36.5 °C
Blood pressure 136/82 mmHg
Heart rate 124 bpm
Saturations 94% on room air
His 12-lead electrocardiogram (ECG) shows sinus tachycardia and nothing else.
What would be the most appropriate initial step in managing this case?Your Answer:
Correct Answer: Rivaroxaban
Explanation:Treatment Options for Suspected Pulmonary Embolism
Pulmonary embolism (PE) is a serious medical condition that requires prompt diagnosis and treatment. In cases where there is a high clinical suspicion of a PE, treatment with treatment-dose direct oral anticoagulant (DOAC) such as rivaroxaban or apixaban or low-molecular-weight heparin (LMWH) should be administered before diagnostic confirmation of a PE on computed tomography (CT) pulmonary angiography (CTPA). Thrombolysis with alteplase may be necessary in certain cases where there is a massive PE with signs of haemodynamic instability or right heart strain on ECG. Intravenous (IV) unfractionated heparin is not beneficial in treating a PE. While a chest X-ray may be useful in the workup for pleuritic chest pain, the priority in suspected PE cases should be administering treatment-dose DOAC or LMWH.
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This question is part of the following fields:
- Respiratory
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Question 29
Incorrect
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A 26-year-old baker visits his GP with concerns about yellowing sclera that have developed over the past week. He has no significant medical history except for a recent viral infection that he has since recovered from. He drinks socially, consuming approximately 20 units per week, and has been in a four-year relationship with his girlfriend. His aunt's death from complications of Wilson's disease is a cause for concern, as her eyes also turned yellow before she became seriously ill. What is the most frequently linked outcome with Wilson's disease?
Your Answer:
Correct Answer: Low ceruloplasmin
Explanation:Understanding Wilson’s Disease and Haemochromatosis: Key Diagnostic Markers
Wilson’s disease and haemochromatosis are two genetic conditions that can lead to serious health consequences if left untreated. Understanding the key diagnostic markers for each condition is crucial for early diagnosis and management.
Wilson’s disease is characterized by a build-up of copper in the body, resulting in liver disease and neuropsychiatric disease. Low ceruloplasmin and high urinary copper are typical markers of Wilson’s disease, along with the presence of Kayser-Fleischer rings. Definitive diagnosis is obtained via liver biopsy, and treatment aims at lifelong reduction of copper levels.
On the other hand, haemochromatosis results in iron overload and accumulation in different organs, leading to liver cirrhosis, cardiomyopathy, and other complications. High transferrin saturation and elevated serum ferritin are key diagnostic markers for haemochromatosis.
It is important to note that positive antinuclear antibody and positive antimitochondrial antibody are not diagnostic for Wilson’s disease or haemochromatosis, as they are associated with other autoimmune conditions. Early diagnosis and management of these conditions is crucial for reducing the risk of serious and potentially life-threatening consequences.
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This question is part of the following fields:
- Gastroenterology
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Question 30
Incorrect
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A 51-year-old woman presents with a 5-month history of abdominal discomfort and bloating. She reports feeling fatigued and has lost around 5 kg in weight during this time. An ultrasound scan of the abdomen and pelvis reveals a solid mass with multiple compartments and high vascularity originating from the left ovary. Which tumour marker is expected to be elevated in this patient?
Your Answer:
Correct Answer: Ca-125
Explanation:Tumour Markers for Ovarian Cancer: Understanding Ca-125 and Other Tests
Ovarian cancer is a serious condition that can be difficult to diagnose. However, there are several tumour markers that can help healthcare professionals identify the presence of ovarian cancer and monitor its progression. One of the most well-established tumour markers for epithelial ovarian cancer is Ca-125. This marker is likely to be elevated in patients with ovarian malignancies, particularly those over the age of 50 who present with symptoms such as abdominal distension, pain, early satiety, loss of appetite, urinary frequency and urgency, unexplained weight loss, fatigue, or change in bowel habit.
While Ca-125 is not specific to ovarian cancer, a raised level of 35 iu/ml or greater should prompt an urgent ultrasound scan of the abdomen and pelvis. If the scan is suggestive of ovarian cancer, the patient must be referred to Gynaecology on an urgent basis. Other tumour markers, such as SCC antigen, Ca 19-9, calcitonin, and CEA, may also be used to aid in the management of advanced cervical cancers, gastrointestinal malignancies, thyroid malignancies, and other types of cancer, respectively. However, these markers are not commonly associated with ovarian tumours.
It is important to note that tumour markers should not be used in isolation to diagnose or monitor ovarian cancer. They should be used in conjunction with other diagnostic tests, such as imaging studies and biopsies, to ensure accurate diagnosis and appropriate treatment. With proper use and interpretation, tumour markers can be a valuable tool in the fight against ovarian cancer.
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This question is part of the following fields:
- Oncology
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Question 31
Incorrect
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A patient in their mid-40s wakes up experiencing severe pain, redness, and swelling at the base of their big toe.
What is the most suitable course of treatment for this patient?Your Answer:
Correct Answer: Indomethacin
Explanation:NSAIDs for Gout Treatment
Non-steroidal anti-inflammatory drugs (NSAIDs) are commonly used to treat acute attacks of gout. Among the NSAIDs, indomethacin is the most frequently prescribed due to its potent anti-inflammatory properties. However, it is important to note that aspirin and aspirin-containing products should be avoided during acute gout attacks as they can actually trigger or worsen the condition. Therefore, it is crucial to consult with a healthcare provider before taking any medication for gout, especially during an acute attack. Proper use of NSAIDs can help alleviate the pain and inflammation associated with gout, improving the patient’s quality of life.
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This question is part of the following fields:
- Rheumatology
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Question 32
Incorrect
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A 39-year-old man is being evaluated on the orthopaedic ward for fever and difficulty breathing. He underwent intramedullary nail surgery to repair a fracture in his right tibia a week ago. What is the probable reason for his pyrexia that occurred more than 5 days after the operation?
Your Answer:
Correct Answer: Venous thromboembolism
Explanation:Venous thromboembolism typically manifests itself between 5 to 10 days after surgery. The presence of breathlessness increases the likelihood of a diagnosis of venous thromboembolism as opposed to cellulitis or urinary tract infection. Meanwhile, pulmonary atelectasis is more prone to occur in the earlier stages following surgery.
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.
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This question is part of the following fields:
- Surgery
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Question 33
Incorrect
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You are considering prescribing an antidepressant to a 75-year-old woman who has been experiencing low mood and difficulty maintaining her weight due to low appetite. Which psychiatric medication could potentially improve both her mood and appetite?
Your Answer:
Correct Answer: Mirtazapine
Explanation:Mirtazapine may be prescribed for its beneficial side effects of increased appetite and sedation. Unlike sertraline and fluoxetine, which are SSRIs that primarily improve mood, they do not have a significant impact on appetite. Gabapentin and pregabalin, which are typically used for neuropathic pain, are not suitable for this purpose.
Mirtazapine: An Effective Antidepressant with Fewer Side Effects
Mirtazapine is an antidepressant medication that functions by blocking alpha2-adrenergic receptors, which leads to an increase in the release of neurotransmitters. Compared to other antidepressants, mirtazapine has fewer side effects and interactions, making it a suitable option for older individuals who may be more susceptible to adverse effects or are taking other medications.
Mirtazapine has two side effects that can be beneficial for older individuals who are experiencing insomnia and poor appetite. These side effects include sedation and an increased appetite. As a result, mirtazapine is typically taken in the evening to help with sleep and to stimulate appetite.
Overall, mirtazapine is an effective antidepressant that is well-tolerated by many individuals. Its unique side effects make it a valuable option for older individuals who may have difficulty sleeping or eating.
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This question is part of the following fields:
- Psychiatry
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Question 34
Incorrect
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A 29-year-old primip is brought in by ambulance at 38+2 weeks’ gestation. She has had an uncomplicated pregnancy so far, and she is a smoker. This morning, she had sudden-onset abdominal pain, which has become very severe. The uterus is hard and contracted. There is no vaginal bleeding, and the os is closed, with a long cervix. She looks clammy and pale.
Her observations are as follows: heart rate (HR) 130 bpm, blood pressure (BP) 98/56 mmHg, respiratory rate (RR) 20 breaths per minute, oxygen saturations 96% on air, and temperature 37.1 °C. The cardiotocogram shows fetal distress, and fetal movements cannot be palpated.
Which of the following is the most appropriate management?Your Answer:
Correct Answer: Emergency Caesarean section
Explanation:Management of Placental Abruption: Emergency Caesarean Section and Other Options
Placental abruption is a serious obstetric emergency that can lead to maternal and fetal mortality. Risk factors include smoking, pre-eclampsia, cocaine use, trauma, and maternal age >35. Symptoms may include sudden-onset, severe pain, a contracted uterus, and fetal distress. In severe cases, an emergency Caesarean section is necessary to reduce the risk of mortality.
If a patient presents with a history suggestive of placental abruption but no maternal or fetal compromise, a transabdominal and/or transvaginal ultrasound scan can confirm the diagnosis and assess fetal wellbeing.
Admission for monitoring and analgesia may be appropriate in cases where there is a concealed or resolved placental abruption and the patient is stable without fetal distress. However, in the presence of maternal and fetal compromise, induction of labor is not appropriate.
In cases where there is no maternal or fetal distress, admitting for intravenous analgesia and fluids can be appropriate to assess the patient and make a timely decision for delivery as required.
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This question is part of the following fields:
- Obstetrics
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Question 35
Incorrect
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Emma is a 27-year-old woman who recently underwent cervical screening. She has no significant medical history and is currently in good health. However, her screening results have come back positive for high-risk human papillomavirus (hrHPV) and her cervical cytology is inadequate. What would be the most suitable course of action to take next?
Your Answer:
Correct Answer: Repeat sample in 3 months
Explanation:According to NICE guidelines for cervical screening, if the smear test is inadequate or the high-risk human papillomavirus (hrHPV) test result is unavailable, the sample should be repeated within 3 months. Therefore, repeating the sample in 3 months is the correct course of action. Repeating HPV testing in 1 week would not change the management plan as Sarah has already tested positive for hrHPV and requires an adequate cervical cytology result. Colposcopy is only necessary if there are two consecutive inadequate results. Waiting 12 months to repeat the sample would be inappropriate as it would be too long between tests. Similarly, returning Sarah to routine recall is not appropriate as she requires an adequate cytology result.
The cervical cancer screening program has evolved to include HPV testing, which allows for further risk stratification. A negative hrHPV result means a return to normal recall, while a positive result requires cytological examination. Abnormal cytology results lead to colposcopy, while normal cytology results require a repeat test at 12 months. Inadequate samples require a repeat within 3 months, and two consecutive inadequate samples lead to colposcopy. Treatment for CIN typically involves LLETZ or cryotherapy. Individuals who have been treated for CIN should be invited for a test of cure repeat cervical sample 6 months after treatment.
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This question is part of the following fields:
- Gynaecology
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Question 36
Incorrect
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What would make the use of the unpaired t test inappropriate for comparing the mean drug concentrations of two groups of subjects?
Your Answer:
Correct Answer: Non-normal distribution of data
Explanation:Limitations of the t test in statistical analysis
The t test is a statistical tool used to compare the means of two groups of data. However, it can only be used for parametric data, which means that the data must be normally distributed. If the data is not normally distributed, then the t test cannot be used.
Another limitation of the t test is that insufficient statistical power, which is a consequence of having too few subjects recruited, would not invalidate the results of the t test. However, it is probable that the results would not show any difference with too few subjects. This is because the statistical power of the test is directly related to the sample size. If the sample size is too small, then the test may not have enough power to detect a difference between the two groups.
Despite this limitation, it is possible that if the differences between the two groups are large enough, then differences might still be seen, irrespective of prior power calculations. Therefore, it is important to consider the limitations of the t test when using it for statistical analysis.
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This question is part of the following fields:
- Clinical Sciences
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Question 37
Incorrect
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As a doctor, you have been requested by a midwife to conduct a newborn examination on a 24-hour old infant. During the examination, the parents express concern about their baby's penis appearing abnormal and request your assistance. Upon inspection, you observe that the urethral meatus is situated on the ventral aspect of the glans and the prepuce is hooded. However, the baby has already passed urine with a strong stream, as noted by the midwife earlier in the day. What should be the doctor's next course of action?
Your Answer:
Correct Answer: Refer to a specialist for possible surgery around 12 months of life
Explanation:It is recommended to refer a child with hypospadias to a specialist for possible surgery around the age of 12 months. This timing is considered optimal, taking into account various factors such as developmental milestones, tolerance of surgery and anesthesia, and the size of the penis. It is important to refer the child to a specialist at the time of diagnosis. Referring a child for surgery within the first month of life or within four hours is not necessary, as this is not an urgent or life-threatening issue. Hypospadias always requires a specialist referral, even if it is mild, and it is the specialist’s responsibility, along with the parents, to decide whether surgery is necessary. It is crucial to advise parents not to circumcise their child with hypospadias, as the prepuce may be used during corrective surgery.
Understanding Hypospadias: A Congenital Abnormality of the Penis
Hypospadias is a condition that affects approximately 3 out of 1,000 male infants. It is a congenital abnormality of the penis that is usually identified during the newborn baby check. However, if missed, parents may notice an abnormal urine stream. This condition is characterized by a ventral urethral meatus, a hooded prepuce, and chordee in more severe forms. The urethral meatus may open more proximally in the more severe variants, but 75% of the openings are distally located. There appears to be a significant genetic element, with further male children having a risk of around 5-15%.
Hypospadias most commonly occurs as an isolated disorder, but it can also be associated with other conditions such as cryptorchidism (present in 10%) and inguinal hernia. Once hypospadias has been identified, infants should be referred to specialist services. Corrective surgery is typically performed when the child is around 12 months of age. It is essential that the child is not circumcised prior to the surgery as the foreskin may be used in the corrective procedure. In boys with very distal disease, no treatment may be needed. Understanding hypospadias is important for parents and healthcare providers to ensure proper management and treatment of this condition.
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This question is part of the following fields:
- Paediatrics
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Question 38
Incorrect
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A 49-year-old woman presents with severe epigastric pain radiating to her back. She has no significant past medical history. On examination, her epigastrium is very tender but not peritonitic. Observations are as follows: heart rate 110 beats per minute, blood pressure 125/75 mmHg, SpO2 96% on air, and temperature 37.2ºC.
Blood results are as follows:
Hb 125 g/L Male: (135-180)
Female: (115 - 160)
Platelets 560 * 109/L (150 - 400)
WBC 14.2 * 109/L (4.0 - 11.0)
Calcium 1.9 mmol/L (2.1-2.6)
Creatinine 110 µmol/L (55 - 120)
CRP 120 mg/L (< 5)
Amylase 1420 U/L (40-140)
What feature suggests severe disease?Your Answer:
Correct Answer: Hypocalcaemia
Explanation:Hypercalcaemia can cause pancreatitis, but hypocalcaemia is an indicator of pancreatitis severity. Diagnosis of acute pancreatitis is confirmed by clinical features and significantly raised amylase. Scoring systems such as Ranson score, Glasgow score, and APACHE II are used to identify severe cases requiring intensive care management. An LDH level greater than 350 IU/L is also an indicator of pancreatitis severity.
Understanding Acute Pancreatitis
Acute pancreatitis is a condition that is commonly caused by alcohol or gallstones. It occurs when the pancreatic enzymes start to digest the pancreatic tissue, leading to necrosis. The main symptom of acute pancreatitis is severe epigastric pain that may radiate through to the back. Vomiting is also common, and examination may reveal epigastric tenderness, ileus, and low-grade fever. In rare cases, periumbilical discolouration (Cullen’s sign) and flank discolouration (Grey-Turner’s sign) may be present.
To diagnose acute pancreatitis, doctors typically measure the levels of serum amylase and lipase in the blood. While amylase is raised in 75% of patients, it does not correlate with disease severity. Lipase, on the other hand, is more sensitive and specific than amylase and has a longer half-life. Imaging tests, such as ultrasound and contrast-enhanced CT, may also be used to assess the aetiology of the condition.
Scoring systems, such as the Ranson score, Glasgow score, and APACHE II, are used to identify cases of severe pancreatitis that may require intensive care management. Factors that indicate severe pancreatitis include age over 55 years, hypocalcaemia, hyperglycaemia, hypoxia, neutrophilia, and elevated LDH and AST. It is important to note that the actual amylase level is not of prognostic value.
In summary, acute pancreatitis is a condition that can cause severe pain and discomfort. It is typically caused by alcohol or gallstones and can be diagnosed through blood tests and imaging. Scoring systems are used to identify cases of severe pancreatitis that require intensive care management.
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This question is part of the following fields:
- Surgery
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Question 39
Incorrect
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An older man with dementia is experiencing recurrent falls. He has a past medical history of ischaemic heart disease, angina, essential hypertension, Parkinson’s disease and gout. He is on regular diltiazem, ramipril, bendroflumethiazide, levodopa and allopurinol. When you review him, his heart rate is 45 beats per minute and his blood pressure is 90/55 mmHg.
Which of the patient’s regular medication is likely to be responsible for his recurrent falls?Your Answer:
Correct Answer: Diltiazem
Explanation:Medications and their Effects on Blood Pressure and Heart Rate
Diltiazem is a calcium-channel blocker that can be used to treat angina and high blood pressure. It works by depressing AV node conduction, reducing peripheral resistance, and afterload. However, it can also cause light-headedness and falls due to its negative chronotropic and inotropic effects.
Levodopa, on the other hand, is a precursor for dopamine, noradrenaline, and adrenaline. While it may cause hypotension and arrhythmias, it generally produces tachyarrhythmias.
Ramipril is an angiotensin-converting enzyme inhibitor that reduces the production of angiotensin II and causes vasodilation. It has renal protective effects in patients with diabetes and can result in hypotension and falls if the dose is too high. However, it rarely causes bradycardia.
Bendroflumethiazide is a diuretic antihypertensive that is often used as third-line in patients in whom ACE inhibitors or calcium channel blockers are not working. It can result in falls if the dose is too high but does not typically cause bradycardia.
Lastly, allopurinol is an agent used in the treatment of gout and is not known to be associated with bradycardia or hypotension.
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This question is part of the following fields:
- Pharmacology
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Question 40
Incorrect
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A 50-year-old woman underwent a mammogram which showed a 2-cm lump in the upper outer quadrant of her right breast. Assuming the primary tumor has spread to a nearby lymph node, where would the metastatic cells most likely be located?
Your Answer:
Correct Answer: Axillary
Explanation:Lymph Nodes and Their Drainage Areas
Lymph nodes are small, bean-shaped structures that play a crucial role in the immune system. They filter lymphatic fluid and trap foreign substances, such as bacteria and cancer cells. Here are some of the major lymph nodes in the body and their drainage areas:
Axillary lymph nodes: These nodes receive lymphatic drainage from the mammary glands and upper limb. They are important in breast cancer staging.
Cervical lymph nodes: These nodes drain structures in the head and neck and can be enlarged in various cancers.
Hilar lymph nodes: These nodes drain the lungs and can become enlarged in lung cancer and other conditions.
Mediastinal lymph nodes: These nodes drain the trachea and oesophagus.
Coeliac lymph nodes: These nodes drain the spleen and foregut, including the stomach, duodenum, liver, and pancreas.
Understanding the drainage areas of lymph nodes is important in diagnosing and treating various diseases.
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This question is part of the following fields:
- Breast
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Question 41
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:
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 42
Incorrect
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In clozapine-treated patients, what is the treatment for hypersalivation?
Your Answer:
Correct Answer: Hyoscine
Explanation:Treatment for Clozapine-Induced Hypersalivation: Hyoscine and Other Options
Hypersalivation, or excessive saliva production, is a common side effect of clozapine treatment. While it usually subsides over time, it can be distressing for patients and may even pose a risk of aspiration pneumonia. Limited trial data exists on treatments for clozapine-induced hypersalivation, but hyoscine, a type of anticholinergic medication, is commonly used. Other options include pirenzepine and benzhexol. It’s important to note that procyclidine is typically used for acute dystonia, not hypersalivation, and medications like propranolol, risperidone, and lorazepam are not indicated for this side effect.
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This question is part of the following fields:
- Psychiatry
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Question 43
Incorrect
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A 68-year-old man comes in with bilateral ankle swelling. During the examination, an elevated jugular venous pressure (JVP) of 7 cm above the sternal angle and large V waves are observed. Upon listening to the heart, a soft pansystolic murmur is heard at the left sternal edge. What is the most probable diagnosis?
Your Answer:
Correct Answer: Tricuspid regurgitation
Explanation:Common Heart Murmurs and Their Characteristics
Tricuspid Regurgitation: This condition leads to an elevated jugular venous pressure (JVP) with large V waves and a pan-systolic murmur at the left sternal edge. Other features include pulsatile hepatomegaly and left parasternal heave.
Tricuspid Stenosis: Tricuspid stenosis causes a mid-diastolic murmur.
Pulmonary Stenosis: This condition produces an ejection systolic murmur.
Mitral Regurgitation: Mitral regurgitation causes a pan-systolic murmur at the apex, which radiates to the axilla.
Aortic Stenosis: Aortic stenosis causes an ejection systolic murmur that radiates to the neck.
Mitral Stenosis: Mitral stenosis causes a mid-diastolic murmur at the apex, and severe cases may have secondary pulmonary hypertension (a cause of tricuspid regurgitation).
These common heart murmurs have distinct characteristics that can aid in their diagnosis.
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This question is part of the following fields:
- Cardiology
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Question 44
Incorrect
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What is the joint that is most frequently impacted by diabetic Charcot's?
Your Answer:
Correct Answer: Tarsometatarsal joints
Explanation:Charcot’s Joint: A Destructive Process Affecting Weight-Bearing Joints
Charcot’s joint is a condition that primarily affects the weight-bearing joints in the extremities, including the feet, ankles, knees, and hips. The most commonly affected joints are the tarsometatarsal and metatarsophalangeal joints, as well as the ankle. This condition is characterized by a destructive process that can lead to joint deformity and instability.
Patients with Charcot’s joint typically have decreased sensation in the affected area and peripheral neuropathy. The most common cause of peripheral neuropathy is diabetes, which has a high affinity for the joints in the foot. Other causes of peripheral neuropathy, such as leprosy, syringomyelia, and tabes dorsalis, are much less common.
Charcot’s joint can be a debilitating condition that can significantly impact a patient’s quality of life. Early diagnosis and treatment are essential to prevent joint deformity and instability. Treatment may include immobilization, orthotics, and surgery in severe cases. With proper management, patients with Charcot’s joint can maintain mobility and function.
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This question is part of the following fields:
- Endocrinology
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Question 45
Incorrect
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A 35-year-old woman who works in a meat processing plant comes to the Emergency department with a skin ulcer that has a black center. She reports that it started as a small itchy bump that turned into an ulcer a few days later.
What is the probable bacterium responsible for her symptoms?Your Answer:
Correct Answer: Bacillus anthracis
Explanation:Anthrax: Types, Symptoms, and Treatment
Anthrax is a bacterial infection caused by Bacillus anthracis, a spore-forming bacterium. It is a rare but serious disease that can be acquired through contact with infected animals or contaminated animal products. There are three main types of anthrax: cutaneous, inhalation, and intestinal.
Cutaneous anthrax is the most common type, accounting for 95% of cases. It is caused by direct contact with the skin or tissue of infected animals. The symptoms start with an itchy pimple that enlarges and eventually forms a black eschar. Inhalation anthrax, on the other hand, is caused by inhaling anthrax spores from infected animal products such as wool. The initial symptoms are similar to a cold, but respiratory failure may develop two to four days later. Intestinal anthrax is the rarest form and is caused by swallowing spores in contaminated meats. Symptoms include severe abdominal pain, nausea, and bloody diarrhea.
Antibiotics are used to treat all three types of anthrax. It is important to start treatment as soon as possible after exposure to ensure maximum efficacy. The anthrax vaccine can also be given in combination with antibiotics. the types, symptoms, and treatment of anthrax is crucial in preventing and managing this serious disease.
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This question is part of the following fields:
- Infectious Diseases
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Question 46
Incorrect
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A 50-year-old woman presents with complaints of fatigue. She reports experiencing dysphagia, a dry mouth, a gritty feeling in her eyes, and heightened sensitivity to light.
What is the probable diagnosis?Your Answer:
Correct Answer: Sjögren syndrome
Explanation:Comparison of Symptoms: Sjögren Syndrome, Haemochromatosis, Hepatitis C Virus Infection, Oesophageal Carcinoma, and Polymyositis
Sjögren syndrome is a condition that causes inflammation and destruction of exocrine glands, resulting in dry and gritty eyes, dry mouth, photosensitivity, fatigue, and joint pain. Patients may also experience excessive watering or deposits of dried mucous in the corner of the eye, recurrent attacks of conjunctivitis, and parotid swelling. On examination, xerostomia can be detected as a diminished salivary pool, a dried fissured tongue, and chronic oral candidiasis.
Haemochromatosis, on the other hand, is characterized by a pigmented (tanned) appearance and may cause dry mouth and thirst due to diabetes.
Hepatitis C virus infection can be associated with a secondary Sjögren syndrome, but there is no indication of this in the question.
Oesophageal carcinoma is unlikely to cause ocular symptoms.
Polymyositis does not present with any history of muscle weakness.
In summary, while some symptoms may overlap between these conditions, a thorough examination and medical history are necessary to accurately diagnose and differentiate them.
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This question is part of the following fields:
- Rheumatology
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Question 47
Incorrect
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A 78-year-old man with known alcohol dependence presents to the Emergency Department with a few weeks of productive cough, weight loss, fever and haemoptysis. He is a heavy smoker, consuming 30 cigarettes per day. On a chest X-ray, multiple nodules 1-3 mm in size are visible throughout both lung fields. What is the best treatment option to effectively address the underlying cause of this man's symptoms?
Your Answer:
Correct Answer: Anti-tuberculous (TB) chemotherapy
Explanation:Choosing the Right Treatment: Evaluating Options for a Patient with Suspected TB
A patient presents with a subacute history of fever, productive cough, weight loss, and haemoptysis, along with a chest X-ray description compatible with miliary TB. Given the patient’s risk factors for TB, such as alcohol dependence and smoking, anti-TB chemotherapy is the most appropriate response, despite the possibility of lung cancer. IV antibiotics may be used until sputum staining and culture results are available, but systemic chemotherapy would likely lead to overwhelming infection and death. Tranexamic acid may be useful for significant haemoptysis, but it will not treat the underlying diagnosis. acyclovir is not indicated, as the patient does not have a history of rash, and a diagnosis of miliary TB is more likely than varicella pneumonia. Careful evaluation of the patient’s history and symptoms is crucial in choosing the right treatment.
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This question is part of the following fields:
- Respiratory
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Question 48
Incorrect
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A 29-year-old female presents to the surgical intake with abdominal pain and a five day history of vomiting.
Over the last three months she has also been aware of a 6 kg weight loss.
On examination, she is pale, has a temperature of 38.5°C, blood pressure of 90/60 mmHg and pulse rate of 130 in sinus rhythm. The chest is clear on auscultation but she has a diffusely tender abdomen without guarding. Her BM reading is 2.5.
Initial biochemistry is as follows:
Sodium 124 mmol/L (137-144)
Potassium 6.0 mmol/L (3.5-4.9)
Urea 7.5 mmol/L (2.5-7.5)
Creatinine 78 µmol/L (60-110)
Glucose 2.0 mmol/L (3.0-6.0)
What is the likely diagnosis?Your Answer:
Correct Answer: Addison's disease
Explanation:Hypoadrenal Crisis and Addison’s Disease
This patient is exhibiting symptoms of hypoadrenal crisis, including abdominal pain, vomiting, shock, hypoglycemia, hyponatremia, and hyperkalemia. In the UK, this is typically caused by autoimmune destruction of the adrenal glands, known as Addison’s disease. Other less common causes include TB, HIV, adrenal hemorrhage, or anterior pituitary disease. Patients with Addison’s disease often experience weight loss, abdominal pain, lethargy, and nausea/vomiting. Additionally, they may develop oral pigmentation due to excess ACTH and other autoimmune diseases such as thyroid disease and vitiligo.
In cases like this, emergency fluid resuscitation, steroid administration, and a thorough search for underlying infections are necessary. It is important to measure cortisol levels before administering steroids. None of the other potential causes explain the patient’s biochemical findings.
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This question is part of the following fields:
- Emergency Medicine
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Question 49
Incorrect
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A 32-year-old female (P0 G1) is 28 weeks pregnant and has just been informed that her baby is in the breech position. She is considering the external cephalic version (ECV) and wants to know when she can be offered this procedure?
Your Answer:
Correct Answer: 36 weeks
Explanation:It is recommended to wait until the lady reaches 36 weeks of pregnancy to check if the baby has changed position, as she is currently only 30 weeks pregnant. For nulliparous women, such as the lady in this case, ECV should be provided at 36 weeks if the baby remains in the breech position. However, if the lady had previous pregnancies, ECV would be offered at 37 weeks.
Breech presentation occurs when the caudal end of the fetus is in the lower segment, and it is more common at 28 weeks than near term. Risk factors include uterine malformations, placenta praevia, and fetal abnormalities. Management options include spontaneous turning, external cephalic version (ECV), planned caesarean section, or vaginal delivery. The RCOG recommends informing women that planned caesarean section reduces perinatal mortality and early neonatal morbidity, but there is no evidence that the long-term health of babies is influenced by how they are born. ECV is contraindicated in certain cases, such as where caesarean delivery is required or there is an abnormal cardiotocography.
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This question is part of the following fields:
- Obstetrics
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Question 50
Incorrect
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You are requested to assess a newborn on the post-natal ward 12 hours after a vaginal delivery. The midwife reports that the mother tested positive for group B streptococcus. During your examination, you observe a yellowish tint to the skin. What would be the most suitable course of action to take next?
Your Answer:
Correct Answer: Measure serum bilirubin within 2 hours
Explanation:Due to the baby’s age of less than 24 hours, there is a high risk of severe hyperbilirubinaemia. It is crucial to urgently measure their serum bilirubin levels within 2 hours, as using a transcutaneous bilirubinometer is not suitable at this stage. While phototherapy can be used to treat jaundice, it is important to first measure the serum bilirubin levels to determine if exchange transfusion is necessary. This information is based on the NICE Guideline CG98 for Jaundice in newborn babies under 28 days.
Jaundice in newborns can occur within the first 24 hours of life and is always considered pathological. The causes of jaundice during this period include rhesus and ABO haemolytic diseases, hereditary spherocytosis, and glucose-6-phosphodehydrogenase deficiency. On the other hand, jaundice in neonates from 2-14 days is common and usually physiological, affecting up to 40% of babies. This type of jaundice is due to a combination of factors such as more red blood cells, fragile red blood cells, and less developed liver function. Breastfed babies are more likely to develop this type of jaundice.
If jaundice persists after 14 days (21 days for premature babies), a prolonged jaundice screen is performed. This includes tests for conjugated and unconjugated bilirubin, direct antiglobulin test, thyroid function tests, full blood count and blood film, urine for MC&S and reducing sugars, and urea and electrolytes. Prolonged jaundice can be caused by biliary atresia, hypothyroidism, galactosaemia, urinary tract infection, breast milk jaundice, prematurity, and congenital infections such as CMV and toxoplasmosis. Breast milk jaundice is more common in breastfed babies and is thought to be due to high concentrations of beta-glucuronidase, which increases the intestinal absorption of unconjugated bilirubin. Prematurity also increases the risk of kernicterus.
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This question is part of the following fields:
- Paediatrics
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