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  • Question 1 - A 30-year-old woman presents with sudden onset of abdominal pain and swelling. She...

    Correct

    • A 30-year-old woman presents with sudden onset of abdominal pain and swelling. She works as a teacher and is in a committed relationship. Upon examination, her abdomen is tender, particularly in the right upper quadrant, and there is mild jaundice. She is currently taking the combined oral contraceptive pill (COCP) and has no significant medical history or regular medication use. After three days of hospitalization, her abdomen became distended and fluid thrill was detected. Laboratory tests show:
      Parameter Result
      Investigation Result Normal value
      Haemoglobin 150 g/l 115–155 g/l
      Bilirubin 51 μmol/ 2–17 μmol/
      Aspartate aminotransferase (AST) 1050 IU/l 10–40 IU/l
      Alanine aminotransferase (ALT) 998 IU/l 5−30 IU/l
      Alkaline phosphatase (ALP) 210 IU/l 36–76 IU/l
      Gamma-Glutamyl transferase (γGT) 108 IU/l 8–35 IU/l
      Albumin 30 g/l 35–55 g/l
      An ultrasound revealed a slightly enlarged liver with a prominent caudate lobe.
      What is the most appropriate definitive treatment for this patient?

      Your Answer: Liver transplantation

      Explanation:

      Management of Budd-Chiari Syndrome: Liver Transplantation and Other Treatment Options

      Budd-Chiari syndrome (BCS) is a condition characterized by hepatic venous outflow obstruction, resulting in hepatic dysfunction, portal hypertension, and ascites. Diagnosis is typically made through ultrasound Doppler, and risk factors include the use of the combined oral contraceptive pill and genetic mutations such as factor V Leiden. Treatment options depend on the severity of the disease, with liver transplantation being necessary in cases of fulminant BCS. For less severe cases, the European Association for the Study of the Liver (EASL) recommends a stepwise approach, starting with anticoagulation and progressing to angioplasty, thrombolysis, and transjugular intrahepatic portosystemic shunt (TIPSS) procedure if needed. Oral lactulose is used to treat hepatic encephalopathy, and anticoagulation is necessary both urgently and long-term. Therapeutic drainage of ascitic fluid and diuretic therapy with furosemide or spironolactone may also be used to manage ascites, but these treatments do not address the underlying cause of BCS.

    • This question is part of the following fields:

      • Gastroenterology
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  • Question 2 - A 36-year-old man complained of abdominal pain and weight loss. Upon investigation, he...

    Correct

    • A 36-year-old man complained of abdominal pain and weight loss. Upon investigation, he was diagnosed with coeliac disease. The biopsy of his small intestine revealed blunting of villi with crypt hyperplasia and intraepithelial lymphocytes ++. What is the stage of his disease?

      Your Answer: III

      Explanation:

      The Marsh Criteria: A Morphological Classification of Coeliac Disease Biopsy

      Coeliac disease is a condition that affects the small intestine, causing damage to the lining and leading to malabsorption of nutrients. The Marsh criteria is a morphological classification system used to diagnose coeliac disease through intestinal biopsy.

      The classification system consists of four stages, with stage 0 indicating a normal biopsy and stage IV indicating total villous atrophy. In between, stages I-III show varying degrees of damage to the duodenal villi, intraepithelial lymphocytes, and crypts.

      Recently, the Marsh-Oberhuber classification was introduced, which subdivides stage III into three classes based on the degree of villous atrophy. Stage IV has been eliminated from this modified version.

      In coeliac disease and other inflammatory conditions, such as milk protein allergy, the pattern of intraepithelial lymphocytes may be reversed. In stage I disease, only increased intraepithelial lymphocytes would be seen on biopsy, while stage 0 would appear normal. Class II disease would show normal duodenal villi, and stage IV would be associated with crypt atrophy.

    • This question is part of the following fields:

      • Gastroenterology
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  • Question 3 - A 26-year-old baker visits his GP with concerns about yellowing sclera that have...

    Correct

    • 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: 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.

    • This question is part of the following fields:

      • Gastroenterology
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  • Question 4 - A 50-year-old woman presents with acute right upper quadrant abdominal pain and vomiting,...

    Incorrect

    • A 50-year-old woman presents with acute right upper quadrant abdominal pain and vomiting, which started earlier today.
      On examination, the patient is not jaundiced and there is mild tenderness in the right upper quadrant and epigastrium. The blood results are as follows:
      Investigation Result Normal value
      Haemoglobin 130 g/l 115–155 g/l
      White cell count (WCC) 14 × 109/l 4–11 × 109/l
      Sodium (Na+) 138 mmol/l 135–145 mmol/l
      Potassium (K+) 4.0 mmol/l 3.5–5.0 mmol/l
      Urea 6.0 mmol/l 2.5–6.5 mmol/l
      Creatinine 70 μmmol/l 50–120 μmol/l
      Bilirubin 25 mmol/l 2–17 mmol/l
      Alkaline phosphatase 120 IU/l 30–130 IU/l
      Alanine aminotransferase (ALT) 40 IU/l 5–30 IU/l
      Amylase 200 U/l < 200 U/l
      Which of the following is the most appropriate management plan?

      Your Answer: Analgesia, iv fluids, antiemetics, US abdomen

      Correct Answer: Analgesia, intravenous (iv) fluids, iv antibiotics, ultrasound (US) abdomen

      Explanation:

      The patient is suspected to have acute cholecystitis, and a confirmation of the diagnosis will rely on an ultrasound scan of the abdomen. To manage the patient’s symptoms and prevent sepsis, it is essential to administer intravenous antibiotics and fluids. Antiemetics may also be necessary to prevent dehydration from vomiting. It is recommended to keep the patient ‘nil by mouth’ until the scan is performed and consider prescribing analgesia for pain relief. An NG tube is not necessary at this stage, and an OGD or ERCP may be appropriate depending on the scan results. The NICE guidelines recommend cholecystectomy within a week of diagnosis.

    • This question is part of the following fields:

      • Gastroenterology
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  • Question 5 - A 29-year-old Caucasian man presents with a 3-month history of diarrhoea, fatigue, and...

    Incorrect

    • A 29-year-old Caucasian man presents with a 3-month history of diarrhoea, fatigue, and weight loss. He denies any history of alcohol or drug abuse. He frequently travels to southern India for work. Laboratory tests show mixed macrocytic anaemia with low levels of serum folate and vitamin B12. Stool examination is negative for ova and parasites. A small bowel biopsy reveals predominant mononuclear infiltration and villous destruction throughout the small intestine. What intervention is most likely to improve his symptoms?

      Your Answer: Gluten-free diet

      Correct Answer: Broad spectrum antibiotics like tetracycline and folate

      Explanation:

      Treatment Options for Tropical Sprue: Broad Spectrum Antibiotics and Folate Supplementation

      Tropical sprue is a condition commonly seen in individuals visiting or residing in tropical countries, particularly in southern India. It is characterized by chronic diarrhea, weight loss, and deficiencies in vitamin B12 and folate. Stool examination typically shows no evidence of ova and parasites, while small intestinal biopsy reveals mononuclear cell infiltration and less villous atrophy throughout the intestine.

      The recommended treatment for tropical sprue involves the use of broad-spectrum antibiotics, such as tetracyclines, along with folate supplementation. This approach has been shown to effectively reverse the changes in the small intestine associated with the condition.

      Other treatment options, such as antihelminthic drugs, are not effective in treating tropical sprue. Similarly, pancreatic enzyme replacement is not indicated in this condition.

      It is important to note that tropical sprue should not be confused with coeliac disease, which is treated with a gluten-free diet. In coeliac disease, small intestinal biopsy typically shows severe villous atrophy and mononuclear cell infiltration in the proximal portion of the small bowel.

      Finally, double-strength trimethoprim and sulfamethoxazole is used in the treatment of Whipple’s disease, which is characterized by PAS-positive macrophages in the lamina propria of the small intestine.

    • This question is part of the following fields:

      • Gastroenterology
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  • Question 6 - A 30-year-old woman presents with intermittent, crampy abdominal pain over the past three...

    Incorrect

    • A 30-year-old woman presents with intermittent, crampy abdominal pain over the past three months. She has noted frequent loose stools containing blood and mucous. She has also had a recent unintentional weight loss of 15 pounds. Past medical history of note includes treatment for a perianal fistula and anal fissures. The patient is investigated with imaging studies and endoscopy; histological examination of the intestinal biopsy specimens confirms a diagnosis of Crohn’s disease.
      Antibodies to which of the following organisms is most likely to be found in this patient’s serum?

      Your Answer: Giardia lamblia

      Correct Answer: Saccharomyces cerevisiae

      Explanation:

      Comparison of Microorganisms and Antibodies Associated with Crohn’s Disease

      Crohn’s disease is a chronic inflammatory bowel disease that can be difficult to diagnose. However, the presence of certain microorganisms and antibodies can aid in the diagnosis and classification of the disease.

      One such microorganism is Saccharomyces cerevisiae, a yeast that can trigger the formation of anti-Saccharomyces cerevisiae antibodies (ASCA’s) in some Crohn’s disease patients. On the other hand, perinuclear anti-neutrophil cytoplasmic antibodies (pANCA) are associated with ulcerative colitis.

      Yersinia enterocolitica is another microorganism that can mimic the symptoms of Crohn’s disease, particularly in the distal ileum. However, the presence of perianal fistula, anal fissure, and intermittent abdominal pain is more consistent with Crohn’s disease, which is often associated with ASCA’s.

      Entamoeba histolytica can cause colitis and dysentery, but it is not typically associated with Crohn’s disease. Similarly, Giardia lamblia can cause protracted steatorrhea but is not linked to Crohn’s disease.

      Finally, Cryptosporidium parvum can cause watery diarrhea, but it is not associated with Crohn’s disease or the formation of specific antibodies.

      In summary, the presence of certain microorganisms and antibodies can aid in the diagnosis and classification of Crohn’s disease, but it is important to consider the patient’s symptoms and medical history as well.

    • This question is part of the following fields:

      • Gastroenterology
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  • Question 7 - A 50-year-old man arrived at the Emergency Department with massive haematemesis. An emergency...

    Correct

    • A 50-year-old man arrived at the Emergency Department with massive haematemesis. An emergency endoscopy revealed a bleeding gastric ulcer located on the lesser curvature of the stomach. Which vessel is most likely affected?

      Your Answer: The left gastric artery

      Explanation:

      Arteries that supply the stomach: A brief overview

      The stomach is a vital organ that requires a constant supply of blood to function properly. There are several arteries that supply blood to different parts of the stomach. Here is a brief overview of these arteries:

      1. Left gastric artery: This artery supplies the lesser curvature of the stomach along with the right gastric artery. Bleeding at the lesser curvature of the stomach is most likely to be caused by these two arteries. The left gastric artery is one of the three branches that arise from the coeliac trunk.

      2. Right gastroepiploic artery: This artery, along with the left gastroepiploic artery, supplies the greater curvature of the stomach.

      3. Left gastroepiploic artery: This artery, along with the right gastroepiploic artery, supplies the greater curvature of the stomach.

      4. Gastroduodenal artery: This artery is a branch off the common hepatic artery that supplies the duodenum, head of the pancreas, and greater curvature of the stomach.

      5. Short gastric arteries: These are four or five small arteries from the splenic artery that supply the fundus of the stomach.

      Understanding the different arteries that supply the stomach is important for diagnosing and treating various medical conditions related to the stomach.

    • This question is part of the following fields:

      • Gastroenterology
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  • Question 8 - A 40-year-old woman has been receiving treatment for ulcerative colitis (UC) for the...

    Incorrect

    • A 40-year-old woman has been receiving treatment for ulcerative colitis (UC) for the past 2 years. She is currently in remission and has no bowel complaints. However, she has recently been experiencing increased fatigue and loss of appetite. During her examination, she appears mildly jaundiced and her nails are shiny. Her blood test results are as follows:
      - Hemoglobin: 112g/L (normal range: 135-175 g/L)
      - C-reactive protein (CRP): 5.2 mg/L (normal range: 0-10 mg/L)
      - Bilirubin: 62 µmol/L (normal range: 2-17 µmol/L)
      - Aspartate aminotransferase (AST): 54 IU/L (normal range: 10-40 IU/L)
      - Alanine aminotransferase (ALT): 47 IU/L (normal range: 5-30 IU/L)
      - Alkaline phosphatase (ALP): 1850 IU/L (normal range: 30-130 IU/L)
      - Albumin: 32 g/L (normal range: 35-55 g/L)

      What is the recommended treatment for this condition?

      Your Answer: ERCP with stenting

      Correct Answer: Liver transplantation

      Explanation:

      Treatment Options for Primary Sclerosing Cholangitis

      Primary sclerosing cholangitis (PSC) is a chronic disease that causes inflammation and sclerosis of the bile ducts. It often presents with pruritus, fatigue, and jaundice, and is more common in men and those with ulcerative colitis (UC). The only definitive treatment for PSC is liver transplantation, as endoscopic stenting is not effective due to the multiple sites of stenosis. Ursodeoxycholic acid has shown some benefit in short-term studies, but its long-term efficacy is uncertain. Fat-soluble vitamin supplementation is often required due to malabsorption, but is not a treatment for the disease. Azathioprine and steroids are not typically useful in PSC treatment, as too much immunosuppressive therapy may worsen associated bone disease. Regular surveillance is necessary after liver transplantation, as recurrence of PSC is possible.

    • This question is part of the following fields:

      • Gastroenterology
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  • Question 9 - A 50-year-old man presents to the upper gastrointestinal surgeon with a 9-month history...

    Incorrect

    • A 50-year-old man presents to the upper gastrointestinal surgeon with a 9-month history of difficulty swallowing both liquids and solid foods. He also complains of regurgitating food. He has been eating smaller and smaller meals given the above symptoms. He has a past medical history of depression for which he takes citalopram. He has never smoked or drank alcohol. He has trialled over-the-counter proton-pump inhibitor (PPI) medication without any symptom relief.
      Physical examination is normal. A recent chest radiograph also appears to be normal. His electrocardiogram (ECG) is also normal.
      His observations are shown below:
      Temperature 36.8 °C
      Blood pressure 127/79 mmHg
      Heart rate 75 beats per minute
      Respiratory rate 16 breaths per minute
      Sp(O2) 98% (room air)
      A diagnosis of achalasia is likely.
      Which of the following is the most appropriate definitive management for this condition?

      Your Answer:

      Correct Answer: Pneumatic dilation

      Explanation:

      Achalasia is a condition where the lower esophageal sphincter fails to relax, causing difficulty in swallowing and regurgitation. Pneumatic dilation is a treatment option that involves using a balloon to stretch the sphincter and reduce pressure in the esophagus. However, this procedure carries a risk of perforation and is only recommended for patients who are good surgical candidates. Botulinum toxin A injections can also be used to inhibit the neurons that increase sphincter tone, but may require repeat treatments. Gastrostomy, or creating an artificial opening into the stomach, is reserved for severe cases where other treatments have failed and the patient is not a surgical candidate. Sublingual isosorbide dinitrate and nifedipine are pharmacological options that can temporarily relax the sphincter and may be used as a bridge while waiting for definitive treatment or for patients who cannot tolerate invasive procedures.

    • This question is part of the following fields:

      • Gastroenterology
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  • Question 10 - A 55-year-old man presents to the clinic with abnormal liver function tests (LFTs)....

    Incorrect

    • A 55-year-old man presents to the clinic with abnormal liver function tests (LFTs). He reports drinking no more than 3 units of alcohol per week and has no significant medical history. The patient was prescribed amoxicillin by his primary care physician for a sinus infection two weeks ago.

      During the physical examination, the patient's BMI is found to be 40 kg/m2, indicating obesity. The LFTs reveal:

      - ALT 120 U/L (5-40)
      - AST 130 U/L (10-40)
      - Alkaline phosphatase 200 U/L (45-105)

      What is the most likely cause of this liver function test derangement?

      Your Answer:

      Correct Answer: Non-alcoholic fatty liver disease

      Explanation:

      Non-Alcoholic Fatty Liver Disease (NAFLD) as a Cause of Liver Enzyme Abnormalities

      Non-alcoholic fatty liver disease (NAFLD) is a common cause of liver enzyme abnormalities, characterized by the accumulation of fat in the liver leading to inflammation. It is often associated with obesity, hypertension, dyslipidemia, and insulin resistance, which are part of the metabolic syndrome. However, other causes of hepatitis should be ruled out before making a diagnosis of NAFLD.

      Patients who are obese and diabetic are advised to lose weight and control their diabetes. A low-fat, low-calorie diet is usually recommended alongside treatment to lower HbA1c. Patients with NAFLD should avoid alcohol or other substances that could be harmful to the liver.

      It is important to note that deranged liver enzymes are not listed as side effects for amoxicillin in the British National Formulary. Therefore, if a patient presents with liver enzyme abnormalities, NAFLD should be considered as a possible cause and appropriate investigations should be carried out to confirm the diagnosis.

    • This question is part of the following fields:

      • Gastroenterology
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  • Question 11 - A 35-year-old accountant has been recently diagnosed with haemochromatosis following a year-long history...

    Incorrect

    • A 35-year-old accountant has been recently diagnosed with haemochromatosis following a year-long history of fatigue, irritability and bronzing of the skin. She would like to know more about the prognosis of the condition and is concerned about the risks of passing on the condition to any children that she may have in the future.

      Which of the following statements best describes haemochromatosis?

      Your Answer:

      Correct Answer: There is an increased risk of hepatocellular carcinoma

      Explanation:

      Haemochromatosis is a genetic disorder that causes the body to absorb too much iron, leading to iron overload and deposition in vital organs such as the liver and pancreas. It is inherited in an autosomal recessive manner, with a frequency of homozygotes in the population of 1:500. The disorder is most commonly found in Celtic nations. Symptoms typically present in the third to fourth decade of life in men and post-menopause in women and include weakness, fatigue, skin bronzing, diabetes, cirrhosis, and cardiac disease. Treatment involves venesection, and in severe cases, liver transplantation may be necessary. Haemochromatosis increases the risk of developing liver cirrhosis and hepatocellular carcinoma by up to 200-fold. Iron deposition in the pancreas can also lead to diabetes, and patients with haemochromatosis who develop diabetes usually require insulin treatment. Arthropathy associated with haemochromatosis is the result of pseudogout, as iron deposits impair cartilage nutrition and enhance the formation and deposition of calcium pyrophosphate dehydrate crystals. Heterozygotes for the HFE gene typically do not develop cirrhosis and remain asymptomatic due to the disorder’s low penetrance.

    • This question is part of the following fields:

      • Gastroenterology
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  • Question 12 - A 50-year-old man presents with sudden onset of upper abdominal pain and vomiting....

    Incorrect

    • A 50-year-old man presents with sudden onset of upper abdominal pain and vomiting. His vital signs are stable upon triage.
      During the physical examination, he appears to be in significant distress and has a tense abdomen upon palpation.
      What initial test should be performed to confirm a perforation?

      Your Answer:

      Correct Answer: Erect chest X-ray

      Explanation:

      The Importance of an Erect Chest X-Ray in Diagnosing Perforated Abdominal Viscus

      When a patient presents with acute abdominal pain, it is crucial to consider the possibility of a perforated abdominal viscus, which requires immediate surgical intervention. The first-line investigation for this condition is an erect chest X-ray, which can detect the presence of free air under the diaphragm (pneumoperitoneum). To ensure accuracy, the patient should be in a seated position for 10-15 minutes before the X-ray is taken. If the patient cannot sit up due to hypotension, a lateral decubitus abdominal film may be used instead. However, in most cases, a CT scan of the abdomen and pelvis will be requested by the surgical team.

      Other diagnostic methods, such as a urine dipstick, liver function tests, and bedside ultrasound, are not effective in detecting a perforation. While plain abdominal films may show signs of perforation, they are not the preferred method of diagnosis. In cases of perforation, the presence of free abdominal air can make the opposite side of the bowel wall appear clearer, which is known as the Rigler’s signs or the double wall sign.

      In conclusion, an erect chest X-ray is a crucial diagnostic tool in identifying a perforated abdominal viscus. Early detection and intervention can prevent serious complications and improve patient outcomes.

    • This question is part of the following fields:

      • Gastroenterology
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  • Question 13 - A 24-year-old waitress who works at a restaurant in Spain has returned home...

    Incorrect

    • A 24-year-old waitress who works at a restaurant in Spain has returned home to see her doctor because she is feeling unwell. She has been experiencing increasing nausea and fatigue and noticed that her urine had darkened a few days ago, and now her stools are pale. Additionally, she has been suffering from severe itching. During the examination, she was found to be jaundiced with scratch marks on her skin and a temperature of 38.1°C.

      The following investigations were conducted:

      - Haemoglobin: 120 g/l (normal range: 115–155 g/l)
      - White cell count (WCC): 11.1 × 109/l (normal range: 4–11 × 109/l)
      - Platelets: 170 × 109/l (normal range: 150–400 × 109/l)
      - Prothrombin Test (PT): 17.1 s (normal range: 10.6–14.9 s)
      - Erythrocyte sedimentation rate (ESR): 48 mm/hr (normal range: 0–10mm in the 1st hour)
      - Alanine aminotransferase (ALT): 795 IU/l (normal range: 5–30 IU/l)
      - Bilirubin: 100 μmol/l (normal range: 2–17 µmol/l)
      - Alkaline phosphatase: 90 IU/l (normal range: 30–130 IU/l)
      - Anti hepatitis A IgM markedly elevated

      What is the most accurate prognosis for this 24-year-old waitress?

      Your Answer:

      Correct Answer: She has a chance of progression to cirrhosis of approximately 0%

      Explanation:

      Understanding Hepatitis A Infection

      Hepatitis A infection is a common viral infection that spreads through the faeco-oral route, particularly in areas like North Africa. It is usually acquired through exposure to contaminated food or water. The infection typically presents with a prodrome of flu-like symptoms, followed by acute hepatitis with right upper quadrant tenderness, jaundice, pale stools, and dark urine.

      Fortunately, hepatitis A is a self-limiting condition, and most people recover within 2-6 months without any significant complications. Death from hepatitis A is rare, occurring in only 0.2% of cases. However, relapsing hepatitis A can occur in up to 20% of cases, with each relapse being milder than the previous one.

      Treatment for hepatitis A is mainly supportive, and there is no significant risk of progression to cirrhosis. Unlike hepatitis B and C, which are transmitted through blood products and sexual intercourse, hepatitis A and E are transmitted through the faeco-oral route. Therefore, practicing good hygiene and sanitation is crucial in preventing the spread of the infection.

    • This question is part of the following fields:

      • Gastroenterology
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  • Question 14 - A middle aged male patient presents with jaundice and epigastric abdominal pain, he...

    Incorrect

    • A middle aged male patient presents with jaundice and epigastric abdominal pain, he describes an intermittent history of similar pain over the past 3 months, however, this time it is much worse. He has markedly raised bilirubin and mildly deranged LFTs, with a predominantly obstructive picture. Other pertinent history includes mild alcohol use.
      What is the most likely cause for his symptoms?

      Your Answer:

      Correct Answer: Gallstones

      Explanation:

      Possible Causes of Obstructive Jaundice: A Case Analysis

      The patient’s symptoms suggest that the most probable cause of obstructive jaundice is gallstones lodged in the common bile duct. Recurrent episodes of biliary colic and/or cholecystitis may have caused the intermittent abdominal pain, which has now worsened and led to hepatic obstruction. Cholecystitis, inflammation of the gallbladder due to gallstones, would not cause obstructive jaundice unless the gallstones leave the gallbladder and become lodged in the common bile duct. Alcohol-induced pancreatitis is a common cause of acute pancreatitis in the UK, but it will not cause obstructive jaundice. Hepatitis C may cause cirrhosis and subsequently jaundice, but there is no evidence that the patient is an intravenous drug user. Pancreatic carcinoma, particularly if located in the head of the pancreas, can cause obstructive jaundice, but it is usually painless in origin. Courvoisier’s law states that a non-tender palpable gallbladder accompanied by painless jaundice is unlikely to be caused by gallstones.

    • This question is part of the following fields:

      • Gastroenterology
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  • Question 15 - A 25-year-old professional who is working long hours develops intermittent periods of abdominal...

    Incorrect

    • A 25-year-old professional who is working long hours develops intermittent periods of abdominal pain and bloating. She also notices a change in bowel habit and finds that going to the restroom helps to relieve her abdominal pain.
      Which of the following drug treatments may help in the treatment of her colic and bloating symptoms?

      Your Answer:

      Correct Answer: Mebeverine

      Explanation:

      Treatment Options for Irritable Bowel Syndrome (IBS)

      Irritable bowel syndrome (IBS) is a common functional bowel disorder that affects mostly young adults, with women being more commonly affected than men. The diagnosis of IBS can be established using the Rome IV criteria, which includes recurrent abdominal pain or discomfort for at least one day per week in the last three months, along with two or more of the following: improvement with defecation, onset associated with a change in frequency of stool, or onset associated with a change in form (appearance) of the stool.

      There are several treatment options available for IBS, depending on the predominant symptoms. Mebeverine, an antispasmodic, can be used to relieve colicky abdominal pain. Loperamide can be useful for patients with diarrhea-predominant IBS (IBS-D), while osmotic laxatives such as macrogols are preferred for constipation-predominant IBS (IBS-C). Cimetidine, a histamine H2 receptor antagonist, can help with acid reflux symptoms, but is unlikely to help with colic or bloating. Metoclopramide, a D2 dopamine receptor antagonist, is used as an antiemetic and prokinetic, but is not effective for colic and bloating symptoms.

      In summary, treatment options for IBS depend on the predominant symptoms and can include antispasmodics, laxatives, and acid reflux medications. It is important to consult with a healthcare provider to determine the best course of treatment for each individual patient.

    • This question is part of the following fields:

      • Gastroenterology
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  • Question 16 - A 22-year-old man presents to the Student Health Service after a ‘flu like’...

    Incorrect

    • A 22-year-old man presents to the Student Health Service after a ‘flu like’ illness. He has noticed that his eyes have become yellow over the past two days and he has been off his food. On examination, there are no significant abnormal findings.
      Investigations:
      Investigation Result Normal value
      Haemoglobin 140 g/l 135–175 g/l
      White cell count (WCC) 6.4 × 109/l 4–11 × 109/l
      Platelets 230 × 109/l 150–400 × 109/l
      Sodium (Na+) 139 mmol/l 135–145 mmol/l
      Potassium (K+) 4.9 mmol/l 3.5–5.0 mmol/l
      Creatinine 80 μmol/l 50–120 µmol/l
      Alanine aminotransferase (ALT) 25 IU/l 5–30 IU/l
      Bilirubin 67 μmol/l 2–17 µmol/l
      Lactate Dehydrogenase (LDH) 105 IU/l 100–190 IU/l
      Urine bile salts +
      Hepatic ultrasound scan – Normal
      Which of the following is the most likely diagnosis?

      Your Answer:

      Correct Answer: Gilbert syndrome

      Explanation:

      Differential Diagnosis for a Patient with Elevated Bilirubin Levels

      One possible cause of elevated bilirubin levels is Gilbert syndrome, an autosomal recessive condition that results in a deficiency of glucuronyl transferase activity. This condition leads to an increase in unconjugated bilirubin levels, which can become more pronounced during periods of fasting or illness. Treatment for Gilbert syndrome is not necessary, and the prognosis is excellent without significant long-term effects.

      Hepatitis A is another possible cause of elevated bilirubin levels, particularly in individuals who have traveled to areas where the virus is common or who have occupational exposure to contaminated materials. Symptoms of hepatitis A include flu-like symptoms, anorexia, nausea, vomiting, and malaise, followed by acute hepatitis with jaundice, pale stools, and dark urine. However, the absence of risk factors and normal alanine aminotransferase levels make hepatitis A unlikely.

      Infectious mononucleosis, caused by the Epstein-Barr virus, can also cause elevated bilirubin levels. Symptoms typically include acute tonsillitis and flu-like symptoms, as well as viral hepatitis. However, the absence of upper respiratory tract infection symptoms, normal ALT levels, and the lack of lymphocytosis make this diagnosis unlikely.

      Autoimmune hemolysis is another possible cause of elevated bilirubin levels, but normal hemoglobin and lactate dehydrogenase levels make this diagnosis unlikely.

      Hepatitis B is a viral infection that is primarily transmitted through sexual contact and intravenous drug use. Symptoms include acute hepatitis with jaundice, and chronic infection can develop in some cases. However, normal ALT levels and the absence of risk factors make this diagnosis unlikely.

    • This question is part of the following fields:

      • Gastroenterology
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  • Question 17 - A 35-year-old man presents with sudden onset abdominal pain that worsens when lying...

    Incorrect

    • A 35-year-old man presents with sudden onset abdominal pain that worsens when lying down. He reports feeling nauseous and has been vomiting. The nursing staff notes that he has a rapid heart rate and a fever of 38.1°C. Upon examination, his abdomen is tender and there is significant guarding. Bruising is present around his belly button. The patient admits to drinking six cans of strong beer daily and smoking two packs of cigarettes per day. He recalls being hospitalized two years ago for vomiting blood but cannot remember the treatment he received. He has no other significant medical history and does not take any regular medications. What is the most likely cause of the man's symptoms and presentation?

      Your Answer:

      Correct Answer: Pancreatitis with retroperitoneal haemorrhage

      Explanation:

      Differential diagnosis for a man with abdominal pain, nausea, and periumbilical bruising

      The man in question presents with classic symptoms of pancreatitis, including abdominal pain that radiates to the back and worsens on lying down. However, his periumbilical bruising suggests retroperitoneal haemorrhage, which can also cause flank bruising. Given his alcohol consumption, coagulopathy is a possible contributing factor. Hepatic cirrhosis could explain coagulopathy, but not the rapid onset of abdominal pain or the absence of ecchymosis elsewhere. A ruptured duodenal ulcer or bleeding oesophageal varices are less likely causes, as there is no evidence of upper gastrointestinal bleeding this time. A pancreatic abscess is a potential complication of pancreatitis, but would typically have a longer onset and more systemic symptoms. Therefore, the differential diagnosis includes pancreatitis with retroperitoneal haemorrhage, possibly related to coagulopathy from alcohol use.

    • This question is part of the following fields:

      • Gastroenterology
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  • Question 18 - A 65-year-old man presents with symptoms of early satiety, nausea and abdominal fullness....

    Incorrect

    • A 65-year-old man presents with symptoms of early satiety, nausea and abdominal fullness. He has lost 6 kg in weight over the past 3 months. There is no other past medical history of note. On examination, he looks very thin and there is a palpable epigastric mass.
      Investigations:
      Investigation Result Normal value
      Haemoglobin 101 g/l 135–175 g/l
      White cell count (WCC) 5.9 × 109/l 4–11 × 109/l
      Platelets 140 × 109/l 150–400 × 109/l
      Sodium (Na+) 141 mmol/l 135–145 mmol/l
      Potassium (K+) 4.3 mmol/l 3.5–5.0 mmol/l
      Creatinine 170 μmol/l 50–120 µmol/l
      Alanine aminotransferase (ALT) 35 IU/l 5–30 IU/l
      Alkaline phosphatase 68 IU/l 30–130 IU/l
      Upper gastrointestinal endoscopy reveals a smooth mass in the body of the stomach with normal-looking mucosa overlying it. Multiple biopsies: spindle cell tissue, cells undergoing multiple mitoses.
      Which of the following is the most likely diagnosis?

      Your Answer:

      Correct Answer: Gastrointestinal stromal tumour (GIST)

      Explanation:

      Gastrointestinal Stromal Tumours (GISTs) vs Other Gastric Conditions

      Gastrointestinal stromal tumours (GISTs) are the most common tumours of mesenchymal origin in the gastrointestinal tract, with approximately 50-70% occurring in the stomach. They are histologically characterized by spindle cells, epithelioid-like cells, or mixed spindle-epithelioid cells. GISTs tend to occur in individuals above the age of 40 and are equally common in men and women. Biopsy specimens are stained with DOG1 for identification, and surgical resection is the preferred treatment option. Systemic chemotherapy with imatinib is an alternative for patients who cannot undergo complete surgical resection. Disease survival rates at the 5-year stage range from 30-60%.

      Other gastric conditions, such as gastric carcinoma, Helicobacter pylori gastritis, gastric leiomyosarcoma, and gastric lipoma, may present with similar symptoms but have different endoscopic and histological findings. Gastric carcinomas are most often adenocarcinomas, while Helicobacter pylori gastritis is the most common cause of gastritis worldwide. Gastric leiomyosarcoma is a differential diagnosis for GISTs, but GISTs are more common. Gastric lipomas would not present with the same combination of findings seen in GISTs.

    • This question is part of the following fields:

      • Gastroenterology
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  • Question 19 - A 23-year-old woman developed sudden-onset, severe epigastric pain 12 hours ago. She subsequently...

    Incorrect

    • A 23-year-old woman developed sudden-onset, severe epigastric pain 12 hours ago. She subsequently began having episodes of nausea and vomiting, especially after trying to eat or drink. The pain now feels more generalised, and even slight movement makes it worse. She has diminished bowel sounds and exquisite tenderness in the mid-epigastrium with rebound tenderness and board-like rigidity. Her pulse is 110 bpm and blood pressure 130/75. She reports taking ibuprofen for dysmenorrhoea. She had last taken ibuprofen the day before the pain began.
      What is the most likely diagnosis?

      Your Answer:

      Correct Answer: Perforated peptic ulcer

      Explanation:

      Differential Diagnosis for Abdominal Pain: Perforated Peptic Ulcer

      Abdominal pain can have various causes, and it is important to consider the differential diagnosis to determine the appropriate treatment. In this case, the patient’s use of non-steroidal anti-inflammatory drugs (NSAIDs) suggests a possible perforated peptic ulcer as the cause of her symptoms.

      Perforated peptic ulcer is a serious complication of peptic ulcer disease that can result from the use of NSAIDs. The patient’s symptoms, including increasing generalised abdominal pain that is worse on moving, rebound tenderness, and board-like rigidity, are classic signs of generalised peritonitis. These symptoms suggest urgent surgical review and definitive surgical management.

      Other possible causes of abdominal pain, such as acute gastritis, acute pancreatitis, appendicitis, and cholecystitis, have been considered but are less likely based on the patient’s symptoms. It is important to consider the differential diagnosis carefully to ensure appropriate treatment and avoid potential complications.

    • This question is part of the following fields:

      • Gastroenterology
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  • Question 20 - A 32-year-old man presents for a general check-up. He is well in himself...

    Incorrect

    • A 32-year-old man presents for a general check-up. He is well in himself and reports no symptoms.
      On examination, he has a body mass index (BMI) of 33 kg/m2 and there are some thickened folds of skin in his axilla and the nape of his neck. His blood pressure is 140/90 mmHg. He is a non-smoker and does not drink.
      A set of blood work is ordered. He demonstrated impaired fasting glucose in addition to the results below.
      Investigation Result Normal value
      Haemoglobin (Hb) 140 g/l 135–175 g/l
      Cholesterol 5.8 mmol/l < 5.2 mmol/l
      Triglyceride 3.9 mmol/l 0–1.5 mmol/l
      Alanine aminotransferase (ALT) 60 IU/l 5–30 IU/l
      Aspartate aminotransferase (AST) 30 IU/l 10–40 IU/l
      Gamma-glutamyl transferase (GGT) 30 IU/l 5–30 IU/l
      What is the next best investigation?

      Your Answer:

      Correct Answer: Ultrasound liver

      Explanation:

      Choosing the Best Investigation: A Case Study

      In this case study, a patient presents with non-alcoholic fatty liver disease (NAFLD), raised ALT, impaired glucose regulation, acanthosis nigricans, and a high BMI. The question is, what investigation should be done next?

      Ultrasound liver is the best investigation in this case. It is quick, inexpensive, and can provide enough information to guide management at initial stages. Weight management and dietary modification can help abate symptoms.

      Screening for hereditary haemochromatosis is not appropriate in this case, as the patient does not complain of arthritis, diabetes, or changes to the skin.

      Haematinics are not necessary, as the Hb is normal.

      A CT scan of the abdomen would be useful, but it is costly and would result in the patient receiving radiation. It should not be the next best investigation.

      Serum ceruloplasmin is not necessary, as there is nothing in the history to suggest Wilson’s disease.

      In conclusion, choosing the best investigation requires careful consideration of the patient’s history and symptoms. In this case, ultrasound liver is the most appropriate next step.

    • This question is part of the following fields:

      • Gastroenterology
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SESSION STATS - PERFORMANCE PER SPECIALTY

Gastroenterology (4/8) 50%
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