00
Correct
00
Incorrect
00 : 00 : 00
Session Time
00 : 00
Average Question Time ( Secs)
  • Question 1 - A 50-year-old construction worker presents with a haematemesis.

    His wife provides a history...

    Correct

    • A 50-year-old construction worker presents with a haematemesis.

      His wife provides a history that he has consumed approximately six cans of beer per day together with liberal quantities of whiskey for many years. He has attempted to quit drinking in the past but was unsuccessful.

      Upon examination, he appears distressed and disoriented. His pulse is 110 beats per minute and blood pressure is 112/80 mmHg. He has several spider naevi over his chest. Abdominal examination reveals a distended abdomen with ascites.

      What would be your next course of action for this patient?

      Your Answer: Endoscopy

      Explanation:

      Possible Causes of Haematemesis in a Patient with Alcohol Abuse

      When a patient with a history of alcohol abuse presents with symptoms of chronic liver disease and sudden haematemesis, the possibility of bleeding oesophageal varices should be considered as the primary diagnosis. However, other potential causes such as peptic ulceration or haemorrhagic gastritis should also be taken into account. To determine the exact cause of the bleeding, an urgent endoscopy should be requested. This procedure will allow for a thorough examination of the gastrointestinal tract and enable the medical team to identify the source of the bleeding. Prompt diagnosis and treatment are crucial in managing this potentially life-threatening condition.

    • This question is part of the following fields:

      • Gastroenterology
      31
      Seconds
  • Question 2 - A 25-year-old woman comes to the Emergency Department with complaints of vomiting blood....

    Correct

    • A 25-year-old woman comes to the Emergency Department with complaints of vomiting blood. She states that she had a heavy night of drinking and has vomited multiple times this morning. After the fourth time, she noticed about a tablespoon of fresh blood mixed in with the vomit. What is the probable reason for her haematemesis?

      Your Answer: Mallory–Weiss tear

      Explanation:

      Common Causes of Upper Gastrointestinal Bleeding

      Upper gastrointestinal bleeding can be caused by various conditions. Here are some of the most common causes:

      Mallory-Weiss Tear
      This tear in the mucosa is usually caused by repeated vomiting, resulting in increased abdominal pressure. Young patients with a clear history may not require further investigation, and bleeding usually resolves without treatment.

      Oesophageal Varices
      This condition should be considered in patients with signs of chronic liver disease or a history of heavy alcohol intake. Oesophageal varices can be life-threatening, with mortality rates as high as 30%.

      Peptic Ulceration
      Peptic ulceration is a common cause of upper gastrointestinal bleeding, especially in patients who use non-steroidal anti-inflammatory drugs (NSAIDs), smoke, or have Helicobacter pylori infection. Patients with peptic ulcer disease should be tested for H. pylori and treated accordingly.

      Reflux Oesophagitis
      This condition is characterized by heartburn and can be asymptomatic. It is usually an incidental finding on endoscopy and can be treated with antacid medication.

      Haemophilia
      Haemophilia is a condition that increases the risk of bleeding due to the absence of clotting factors. While spontaneous gastrointestinal bleeding is rare, patients may present with spontaneous bleeding in other parts of the body, such as joints.

    • This question is part of the following fields:

      • Gastroenterology
      41
      Seconds
  • Question 3 - A 40-year-old woman presents with sudden upper abdominal pain and loss of appetite....

    Correct

    • A 40-year-old woman presents with sudden upper abdominal pain and loss of appetite. Upon examination, she has enlarged liver, abdominal distension, and swelling in both legs. Notably, there are visible veins on her back that flow upwards. What is the most probable underlying factor for this condition?

      Your Answer: Sarcoidosis

      Explanation:

      Understanding Budd-Chiari Syndrome: A Rare Disorder with Obstruction of Hepatic Venous Outflow

      Budd-Chiari syndrome (BCS) is a rare disorder that involves obstruction or narrowing of the hepatic veins, which can lead to hepatic dysfunction, portal hypertension, and ascites. This condition is caused by venous thrombosis that forms anywhere from the hepatic venules up to the entrance of the inferior vena cava (IVC) at the right atrium. BCS typically presents with abdominal pain, ascites, and hepatomegaly, and obstruction of the IVC can cause prominence of venous collaterals in the back with upward direction flow and bipedal oedema.

      Recognized risk factors for BCS include prothrombotic conditions, myeloproliferative conditions, hormonal treatment, pregnancy and puerperium, infections, malignancy, trauma, and autoimmune/rheumatological conditions such as sarcoidosis. Alcoholism, hyperthyroidism, hyperlipidaemia, and acute infection are not typically associated with BCS.

      It is important to recognize the signs and symptoms of BCS and to identify any underlying risk factors in order to provide appropriate treatment and management.

    • This question is part of the following fields:

      • Gastroenterology
      24.5
      Seconds
  • Question 4 - A 49-year-old woman visits her GP complaining of fatigue and wondering if she...

    Correct

    • A 49-year-old woman visits her GP complaining of fatigue and wondering if she has entered menopause. Upon conducting a blood test, the results show a Hb of 101 g/l, MCV 108.2 fl, and a B12 level of 46 ng/l. She also reports experiencing occasional changes in bowel movements. What test would be most effective in differentiating pernicious anemia from other malabsorption causes as the reason for her low B12 levels?

      Your Answer: Intrinsic factor antibodies

      Explanation:

      Understanding Pernicious Anaemia: Diagnosis and Treatment

      Pernicious anaemia is a type of macrocytic anaemia caused by a deficiency of vitamin B12. This deficiency is often due to antibodies that target either intrinsic factor or the gastric parietal cells. To diagnose pernicious anaemia, blood tests for intrinsic factor antibodies and gastric parietal cell-antibodies are necessary.

      Other tests, such as the PABA test, folic acid level, serum gastrin level, and C14 breath test, are not useful in identifying pernicious anaemia. Vitamin B12 is normally absorbed in the terminal ileum, but a problem in any part of this chain may result in vitamin B12 deficiency.

      Patients with pernicious anaemia require lifelong vitamin B12 injections, typically six injections over the first two weeks from diagnosis and then one every three months to maintain adequate levels. Understanding the diagnosis and treatment of pernicious anaemia is crucial for managing this condition effectively.

    • This question is part of the following fields:

      • Gastroenterology
      30.5
      Seconds
  • Question 5 - A 35-year-old patient presents with an abdominal mass that is primarily located around...

    Correct

    • A 35-year-old patient presents with an abdominal mass that is primarily located around the caecum and also involves the terminal ileum. There are no signs of weight loss or lymphadenopathy. The patient has a history of multiple oral ulcers and severe perianal disease, including fissures, fistulae, and previous abscesses that have required draining.

      What is the probable diagnosis?

      Your Answer: Crohn's disease

      Explanation:

      Crohn’s Disease

      Crohn’s disease is a condition that affects different parts of the digestive tract. The location of the disease can be classified as ileal, colonic, ileo-colonic, or upper gastrointestinal tract. In some cases, the disease can cause a solid, thickened mass around the caecum, which also involves the terminal ileum. This is known as ileo-colonic Crohn’s disease.

      While weight loss is a common symptom of Crohn’s disease, it is not always present. It is important to note that the range of areas affected by the disease makes it unlikely for it to be classified as anything other than ileo-colonic Crohn’s disease.

    • This question is part of the following fields:

      • Gastroenterology
      35.5
      Seconds
  • Question 6 - A 57-year-old man presents to his general practitioner (GP) with a 2-month history...

    Correct

    • A 57-year-old man presents to his general practitioner (GP) with a 2-month history of pain and difficulty swallowing when eating solid foods and now also has trouble swallowing liquids. He states that his trousers now feel looser around his waist and he no longer looks forward to his meals. His past medical history is significant for reflux disease for which he takes over-the-counter Gaviscon. He has a 20-pack-year history of smoking and drinks approximately 15 pints of beer per week. His family medical history is unremarkable.
      His observations are shown below:
      Temperature 36.4°C
      Blood pressure 155/69 mmHg
      Heart rate 66 beats per minute
      Respiratory rate 13 breaths per minute
      Sp(O2) 99% (room air)
      Physical examination is normal.
      Which of the following is the best next step in management?

      Your Answer: Immediate referral to upper gastrointestinal surgeon

      Explanation:

      Appropriate Management for a Patient with Dysphagia and ‘Alarm’ Symptoms

      When a patient presents with dysphagia and ‘alarm’ symptoms such as weight loss, anorexia, and swallowing difficulties, prompt referral for an urgent endoscopy is necessary. In the case of a patient with a significant smoking history, male sex, and alcohol intake, there is a high suspicion for oesophageal cancer, and an immediate referral to an upper gastrointestinal surgeon is required under the 2-week-wait rule.

      Continuing treatment with over-the-counter medications like Gaviscon would be inappropriate in this case, as would histamine-2 receptor antagonist therapy. Oesophageal manometry would only be indicated if the patient had an oesophageal motility disorder. Proton-pump inhibitor (PPI) therapy can be initiated in patients with gastroesophageal reflux disease, but it would not be appropriate as a sole treatment option for a patient with clinical manifestations concerning for oesophageal carcinoma.

      In summary, prompt referral for an urgent endoscopy is crucial for patients with dysphagia and ‘alarm’ symptoms, and appropriate management should be tailored to the individual patient’s clinical presentation.

    • This question is part of the following fields:

      • Gastroenterology
      49.6
      Seconds
  • Question 7 - A 47-year-old man is admitted with acute epigastric pain and a serum amylase...

    Incorrect

    • A 47-year-old man is admitted with acute epigastric pain and a serum amylase of 1500 u/l. His IMRIE score confirms acute pancreatitis. On examination, a large ecchymosis is observed around the umbilicus.
      What clinical sign does this examination finding demonstrate?

      Your Answer: McBurney’s sign

      Correct Answer: Cullen’s sign

      Explanation:

      Common Medical Signs and Their Meanings

      Medical signs are physical indications of a disease or condition that can aid in diagnosis. Here are some common medical signs and their meanings:

      1. Cullen’s sign: This is bruising around the umbilicus that can indicate acute pancreatitis or an ectopic pregnancy.

      2. McBurney’s sign: Pain over McBurney’s point, which is located in the right lower quadrant of the abdomen, can indicate acute appendicitis.

      3. Grey–Turner’s sign: Discoloration of the flanks can indicate retroperitoneal hemorrhage.

      4. Troisier’s sign: The presence of Virchow’s node in the left supraclavicular fossa can indicate gastric cancer.

      5. Tinel’s sign: Tingling in the median nerve distribution when tapping over the median nerve can indicate carpal tunnel syndrome.

    • This question is part of the following fields:

      • Gastroenterology
      27
      Seconds
  • Question 8 - A 58-year-old-man visits his General Practitioner with concerns of constipation and rectal bleeding....

    Correct

    • A 58-year-old-man visits his General Practitioner with concerns of constipation and rectal bleeding. He reports a recent loss of appetite and occasional abdominal pain over the past few months. The patient's blood test results are as follows:
      Investigation Result Normal value
      Haemoglobin 98 g/l 130 – 180 g/l
      Mean corpuscular value (MCV) 93 fl 80 –100 fl
      What is the most suitable test to conduct for the diagnosis of this patient?

      Your Answer: Colonoscopy

      Explanation:

      The patient in this scenario presents with symptoms that suggest a blockage in their bowel and potential signs of cancer, such as a loss of appetite and anemia. Therefore, the most important initial investigation is a colonoscopy. A colonic transit study is not appropriate as it is used for slow colonic transit and this patient has symptoms of obstruction. An abdominal X-ray can be used to investigate faecal impaction and rectal masses, but a colonoscopy should be used first-line for detailed information about colonic masses. While a CT abdomen may be needed, a colonoscopy should be performed as the initial investigation for intestinal luminal obstruction and potential malignancy. Checking thyroid function may be useful if there is suspicion of a secondary cause of constipation, but in this case, the patient’s symptoms suggest colonic obstruction and cancer, making a thyroid function test an inappropriate initial investigation.

    • This question is part of the following fields:

      • Gastroenterology
      47.2
      Seconds
  • Question 9 - What statement is true about infants who have gastroenteritis? ...

    Correct

    • What statement is true about infants who have gastroenteritis?

      Your Answer: Should be admitted to hospital if they are unable to tolerate fluid orally

      Explanation:

      Management of Gastroenteritis in Children

      Gastroenteritis is a common illness in children that is usually caused by a viral infection. Antibiotics are not necessary in most cases as they are only effective against bacterial infections. Changing formula feeds is also not recommended as it may cause further digestive problems. However, if the child is unable to tolerate oral fluids, intravenous fluid therapy may be necessary to prevent dehydration.

      Lactose intolerance is a common occurrence in children with gastroenteritis, but it is not inevitable. It is important to monitor the child’s symptoms and adjust their diet accordingly. Barium meals are not useful in the investigation of gastroenteritis as they are more commonly used to diagnose structural abnormalities in the digestive system.

      In summary, the management of gastroenteritis in children involves providing supportive care such as oral rehydration therapy and monitoring for signs of dehydration. Antibiotics are not necessary unless there is a bacterial infection present. It is important to be aware of the possibility of lactose intolerance and adjust the child’s diet accordingly. Barium meals are not useful in the investigation of gastroenteritis.

    • This question is part of the following fields:

      • Gastroenterology
      19.1
      Seconds
  • Question 10 - A 50-year-old man presents to the Acute Medical Unit with complaints of mucous...

    Incorrect

    • A 50-year-old man presents to the Acute Medical Unit with complaints of mucous and bloody diarrhoea. He has experienced milder episodes intermittently over the past five years but has never sought medical attention. The patient reports left lower abdominal pain and occasional right hip pain. On examination, there is tenderness in the lower left abdominal region without radiation. The patient has not traveled outside the UK and has not been in contact with anyone with similar symptoms. There is no significant family history. What is the most probable diagnosis?

      Your Answer: Acute diverticulitis

      Correct Answer: Ulcerative colitis

      Explanation:

      Understanding Gastrointestinal Conditions: A Comparison of Ulcerative Colitis, Colon Carcinoma, Acute Diverticulitis, Crohn’s Disease, and Irritable Bowel Syndrome

      Gastrointestinal conditions can be challenging to differentiate due to their overlapping symptoms. This article aims to provide a comparison of five common gastrointestinal conditions: ulcerative colitis, colon carcinoma, acute diverticulitis, Crohn’s disease, and irritable bowel syndrome.

      Ulcerative colitis is a type of inflammatory bowel disease (IBD) that presents with bloody diarrhea as its main feature. Hip pain is also a common extra-intestinal manifestation in this condition.

      Colon carcinoma, on the other hand, has an insidious onset and is characterized by weight loss, iron-deficiency anemia, and altered bowel habits. It is usually detected through screening tests such as FOBT, FIT, or flexible sigmoidoscopy.

      Acute diverticulitis is a condition that affects older people and is caused by chronic pressure from constipation due to low dietary fiber consumption. It presents with abdominal pain and blood in the stool, but mucous is not a common feature.

      Crohn’s disease is another type of IBD that presents with abdominal pain and diarrhea. However, bloody diarrhea is not common. Patients may also experience weight loss, fatigue, and extra-intestinal manifestations such as oral ulcers and perianal involvement.

      Irritable bowel syndrome (IBS) is a gastrointestinal condition characterized by episodes of diarrhea and constipation, as well as flatulence and bloating. Abdominal pain is relieved upon opening the bowels and passing loose stools. IBS is different from IBD and is often associated with psychological factors such as depression and anxiety disorders.

      In conclusion, understanding the differences between these gastrointestinal conditions is crucial for accurate diagnosis and appropriate management.

    • This question is part of the following fields:

      • Gastroenterology
      45.5
      Seconds
  • Question 11 - A 70-year-old female complains of abdominal pain and melaena. She has a medical...

    Correct

    • A 70-year-old female complains of abdominal pain and melaena. She has a medical history of hypertension, type 2 diabetes, and right knee osteoarthritis. Which medication could be causing her symptoms?

      Your Answer: Diclofenac

      Explanation:

      Causes of Peptic Ulceration and the Role of Medications

      Peptic ulceration is a condition that can cause acute gastrointestinal (GI) blood loss. One of the common causes of peptic ulceration is the reduction in the production of protective mucous in the stomach, which exposes the stomach epithelium to acid. This can be a consequence of using non-steroidal anti-inflammatory drugs (NSAIDs) such as diclofenac, which is commonly used in the treatment of osteoarthritis. Steroids are also known to contribute to peptic ulceration.

      On the other hand, tramadol, an opiate, does not increase the risk of GI ulceration. It is important to be aware of the potential side effects of medications and to discuss any concerns with a healthcare provider. By doing so, patients can receive appropriate treatment while minimizing the risk of adverse effects.

    • This question is part of the following fields:

      • Gastroenterology
      31.1
      Seconds
  • Question 12 - A 67-year-old malnourished patient needs to have a nasogastric (NG) tube inserted for...

    Incorrect

    • A 67-year-old malnourished patient needs to have a nasogastric (NG) tube inserted for enteral feeding. What is the primary method to verify the NG tube's secure placement before starting feeding?

      Your Answer: Chest X-ray

      Correct Answer: Aspirate 10 ml and check the pH

      Explanation:

      Methods for Confirming Correct Placement of Nasogastric Tubes

      Nasogastric (NG) tubes are commonly used in medical settings to administer medication, nutrition, or to remove stomach contents. However, incorrect placement of an NG tube can lead to serious complications. Therefore, it is important to confirm correct placement before using the tube. Here are some methods for confirming correct placement:

      1. Aspirate and check pH: Aspirate 10 ml of fluid from the NG tube and test the pH. If the pH is less than 5.5, the tube is correctly placed in the stomach.

      2. Visual inspection: Do not rely on visual inspection of the aspirate to confirm correct placement, as bronchial secretions can be similar in appearance to stomach contents.

      3. Insert air and auscultate: Injecting 10-20 ml of air can help obtain a gastric aspirate, but auscultation to confirm placement is an outdated and unreliable technique.

      4. Chest X-ray: If no aspirate can be obtained or the pH level is higher than 5.5, a chest X-ray can be used to confirm correct placement. However, this should not be the first-line investigation.

      5. Abdominal X-ray: An abdominal X-ray is not helpful in determining correct placement of an NG tube, as it does not show the lungs.

      By using these methods, healthcare professionals can ensure that NG tubes are correctly placed and reduce the risk of complications.

    • This question is part of the following fields:

      • Gastroenterology
      10.6
      Seconds
  • Question 13 - A 54-year-old man with persistent dyspepsia was being evaluated at the nearby medical...

    Correct

    • A 54-year-old man with persistent dyspepsia was being evaluated at the nearby medical center. While performing oesophago-gastro-duodenoscopy (OGD), the endoscopist inserted the endoscope until it reached the oesophageal hiatus of the diaphragm.
      At which vertebral level is it probable that the endoscope tip reached?

      Your Answer: T10

      Explanation:

      The Diaphragm and its Openings: A Vertebral Level Guide

      The diaphragm is a dome-shaped muscle that separates the thoracic and abdominal cavities. It plays a crucial role in breathing and also contains several openings for important structures to pass through. Here is a guide to the vertebral levels of the diaphragm openings:

      T10 – Oesophageal Hiatus: This opening allows the oesophagus to pass through and is located at the T10 vertebral level. A helpful mnemonic is that ‘oesophagus’ contains 10 letters.

      T7 – No Openings: There are no openings of the diaphragm at this level.

      T8 – Caval Opening: The caval opening is located at the T8 vertebral level and allows the inferior vena cava to pass through. A useful way to remember this is that ‘vena cava’ has 8 letters.

      T11 – Oesophagus and Stomach: The oesophagus meets the cardia of the stomach at approximately this level.

      T12 – Aortic Hiatus: The aortic hiatus is located at the T12 vertebral level and allows the descending aorta to pass through. A helpful mnemonic is that ‘aortic hiatus’ contains 12 letters.

      Knowing the vertebral levels of the diaphragm’s openings can be useful for understanding the anatomy of the thoracic and abdominal cavities.

    • This question is part of the following fields:

      • Gastroenterology
      49
      Seconds
  • Question 14 - A 32-year-old woman presents with a 15-month history of dysphagia. She has had...

    Incorrect

    • A 32-year-old woman presents with a 15-month history of dysphagia. She has had difficulty with both liquids and solids from the onset. She reports no weight loss and there no past medical history of note. Investigation with a barium swallow demonstrates a dilated oesophagus with a ‘bird’s beak’ tapering of the distal oesophagus.
      Which of the following is the most likely diagnosis?

      Your Answer: Benign oesophageal stricture

      Correct Answer: Achalasia

      Explanation:

      Understanding Achalasia: Symptoms, Diagnosis, and Differential Diagnosis

      Achalasia is a motility disorder that affects the lower esophageal sphincter, causing difficulty swallowing both liquids and solids. This condition is characterized by the failure of the sphincter to relax in response to peristalsis during swallowing, which can lead to chest pain after eating and regurgitation of food. The cause of achalasia is unknown, but it is thought to be due to degeneration of the myenteric plexus.

      To diagnose achalasia, a barium swallow may reveal a dilated esophagus with a bird’s beak tapering of the distal esophagus. Manometry can confirm the high-pressure, non-relaxing lower esophageal sphincter. Endoscopy should also be carried out to exclude malignancy.

      Differential diagnosis for achalasia includes oesophageal carcinoma, pharyngeal pouch, benign oesophageal stricture, and caustic stricture. Oesophageal carcinoma is less likely in a relatively young patient without history of weight loss, and the barium swallow findings are more suggestive of achalasia than malignancy. A pharyngeal pouch would be visualized on a barium swallow, while a benign oesophageal stricture is more common in older people with a history of gastro-oesophageal reflux disease. Caustic stricture would also be visualized on a barium swallow, but there is no history of caustic damage in this case.

    • This question is part of the following fields:

      • Gastroenterology
      57.6
      Seconds
  • Question 15 - A 65-year-old man presents with increased satiety, dull abdominal pain and weight loss...

    Incorrect

    • A 65-year-old man presents with increased satiety, dull abdominal pain and weight loss over the past 6 months. He smokes 20 cigarettes per day and has suffered from indigestion symptoms for some years. On examination, his body mass index is 18 and he looks thin. He has epigastric tenderness and a suspicion of a mass on examination of the abdomen.
      Investigations:
      Investigation Result Normal value
      Haemoglobin 101 g/l 135–175 g/l
      White cell count (WCC) 9.2 × 109/l 4–11 × 109/l
      Platelets 201 × 109/l 150–400 × 109/l
      Sodium (Na+) 139 mmol/l 135–145 mmol/l
      Potassium (K+) 4.5 mmol/l 3.5–5.0 mmol/l
      Creatinine 110 μmol/l 50–120 µmol/l
      Faecal occult blood (FOB) Positive
      Upper gastrointestinal endoscopy Yellowish coloured, ulcerating
      submucosal mass within the
      stomach
      Histology Extensive lymphocytes within the biopsy
      Which of the following is the most likely diagnosis?

      Your Answer: Gastric carcinoma

      Correct Answer: Gastric lymphoma

      Explanation:

      Histological Diagnoses of Gastric Conditions

      Gastric lymphoma is often caused by chronic infection with H. pylori, and eradicating the infection can be curative. If not, chemotherapy is the first-line treatment. Other risk factors include HIV infection and long-term immunosuppressive therapy. In contrast, H. pylori gastritis is diagnosed through histological examination, which reveals lymphocytes and may indicate gastric lymphoma. Gastric ulcers are characterized by inflammation, necrosis, fibrinoid tissue, or granulation tissue on histology. Gastric carcinoma is identified through adenocarcinoma of diffuse or intestinal type, with higher grades exhibiting poorly formed tubules, intracellular mucous, and signet ring cells. Finally, alcoholic gastritis is diagnosed through histology as neutrophils in the epithelium above the basement membrane.

    • This question is part of the following fields:

      • Gastroenterology
      83
      Seconds
  • Question 16 - A 45-year-old alcoholic presents to the Emergency Department with retrosternal chest pain, shortness...

    Incorrect

    • A 45-year-old alcoholic presents to the Emergency Department with retrosternal chest pain, shortness of breath and pain on swallowing after a heavy drinking session the night before. He reports having vomited several times this morning, after which the pain started. He denies any blood in the vomit and has no melaena. On examination, he is febrile and tachypnoeic and has a heart rate of 110 bpm. A chest X-ray reveals a left-sided pneumothorax and air within the mediastinum.
      Given the likely diagnosis, what is the most appropriate management to treat the underlying cause of his symptoms?

      Your Answer: Chest drain insertion

      Correct Answer: Urgent surgery

      Explanation:

      Management of Suspected Oesophageal Rupture

      Suspected oesophageal rupture is a medical emergency that requires urgent intervention. This condition is more common in patients with a history of alcohol excess and can be associated with a triad of vomiting, chest pain, and subcutaneous emphysema. Symptoms include retrosternal chest/epigastric pain, tachypnoea, fever, pain on swallowing, and shock. A chest X-ray reveals gas within soft tissue spaces, pneumomediastinum, left pleural effusion, and left-sided pneumothorax. Without rapid treatment, the condition can be fatal.

      Antibiotics are necessary to treat the infection that may result from oesophageal rupture. However, they will not address the underlying cause of the infection.

      Chest drain insertion is not the correct management for pneumothorax secondary to oesophageal rupture. A chest drain would not resolve the underlying cause, and air would continue to enter the pleural cavity via the oesophagus.

      Proton pump inhibitors (PPIs) are not appropriate for suspected oesophageal rupture. PPIs would be the correct management for a suspected perforated ulcer. However, the history of acute-onset pain following vomiting is more in keeping with oesophageal rupture.

      Urgent endoscopy is not appropriate for suspected oesophageal rupture. Endoscopy risks further oesophageal perforation, and there is no report of haematemesis or melaena, making this a less likely cause of the patient’s symptoms.

      Management of Suspected Oesophageal Rupture: Antibiotics, Chest Drain Insertion, PPIs, and Endoscopy

    • This question is part of the following fields:

      • Gastroenterology
      86.3
      Seconds
  • Question 17 - A 35-year-old accountant has been recently diagnosed with haemochromatosis following a year-long history...

    Correct

    • 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: 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
      52.1
      Seconds
  • Question 18 - A 55-year-old woman visits her GP complaining of a burning sensation in her...

    Correct

    • A 55-year-old woman visits her GP complaining of a burning sensation in her chest after eating meals for the past 2 months. She explains that this pain usually occurs after consuming heavy meals and can keep her up at night. Despite trying over-the-counter antacids, she has found little relief. The pain is retrosternal, without radiation, and is not aggravated by physical activity. She denies any difficulty or pain while swallowing and has not experienced any weight loss. She is worried that she may be having a heart attack every time this happens as both her parents died from coronary artery disease. She has no other medical conditions and is not taking any regular medications. An ECG reveals normal sinus rhythm without ischaemic changes. What is the most probable diagnosis?

      Your Answer: Gastro-oesophageal reflux disease (GORD)

      Explanation:

      Differential Diagnosis for Retrosternal Pain: GORD, PUD, MI, Pancreatitis, and Pericarditis

      When a patient presents with retrosternal pain, it is important to consider various differential diagnoses. In this case, the patient’s pain is burning in nature and occurs in the postprandial period, making gastro-oesophageal reflux disease (GORD) a likely diagnosis. Other common manifestations of GORD include hypersalivation, globus sensation, and laryngitis. However, if the patient had any ‘alarm’ symptoms, such as weight loss or difficulty swallowing, further investigation would be necessary.

      Peptic ulcer disease (PUD) is another potential cause of deep epigastric pain, especially in patients with risk factors such as Helicobacter pylori infection, non-steroidal anti-inflammatory use, and alcoholism.

      Myocardial infarction (MI) is less likely in this case, as the patient’s pain does not worsen with exertion and is not accompanied by other cardiac symptoms. Additionally, the patient’s ECG is normal.

      Pancreatitis typically presents with abdominal pain that radiates to the back, particularly in patients with gallstones or a history of alcoholism. The patient’s non-radiating, retrosternal burning pain is not consistent with pancreatitis.

      Pericarditis is characterized by pleuritic chest pain that is aggravated by inspiration and lying flat, but relieved by sitting forward. Widespread ST-segment elevation on electrocardiogram is also common. Non-steroidal anti-inflammatories are typically used as first-line treatment.

      In summary, a thorough consideration of the patient’s symptoms and risk factors can help narrow down the potential causes of retrosternal pain and guide appropriate diagnostic and treatment strategies.

    • This question is part of the following fields:

      • Gastroenterology
      43
      Seconds
  • Question 19 - A 50-year-old woman with a history of multiple gallstones is presenting with jaundice...

    Correct

    • A 50-year-old woman with a history of multiple gallstones is presenting with jaundice due to a common bile duct obstruction caused by a large stone. What biochemical abnormalities are expected to be observed in this patient?

      Your Answer: Decreased stercobilin in the stool

      Explanation:

      Effects of Biliary Tree Obstruction on Bilirubin Metabolism

      Biliary tree obstruction can have various effects on bilirubin metabolism. One of the consequences is a decrease in stercobilin in the stool, which can lead to clay-colored stools. Additionally, there is an increase in urobilinogen in the urine due to less bilirubin in the intestine. However, there is a decrease in urobilinogen in the urine due to reduced excretion. The plasma bilirubin level is increased, leading to jaundice. Finally, there is an increase in plasma conjugated bilirubin, which is water-soluble and can be excreted by the kidneys.

    • This question is part of the following fields:

      • Gastroenterology
      22.4
      Seconds
  • Question 20 - A 40-year-old man presents to the Emergency Department with bloody bowel motions and...

    Incorrect

    • A 40-year-old man presents to the Emergency Department with bloody bowel motions and abdominal cramping for the last eight hours. He is also complaining of fatigue.
      He has a past medical history significant for Crohn’s disease, but is non-compliant with azathioprine as it gives him severe nausea. He takes no other regular medications. He has no drug allergies and does not smoke or drink alcohol.
      Physical examination reveals diffuse abdominal pain, without abdominal rigidity.
      His observations are as follows:
      Temperature 37.5 °C
      Blood pressure 105/88 mmHg
      Heart rate 105 bpm
      Respiratory rate 20 breaths/min
      Oxygen saturation (SpO2) 99% (room air)
      His blood tests results are shown below:
      Investigation Result Normal value
      White cell count (WCC) 14.5 × 109/l 4–11 × 109/l
      C-reactive protein (CRP) 51.2 mg/l 0–10 mg/l
      Haemoglobin 139 g/l 135–175 g/l
      Which of the following is the most appropriate management for this patient?

      Your Answer: Immediate surgery

      Correct Answer: Intravenous (IV) steroids

      Explanation:

      The patient is experiencing a worsening of their Crohn’s disease, likely due to poor medication compliance. Symptoms include bloody bowel movements, fatigue, and elevated inflammatory markers. Admission to a Medical Ward for IV hydration, electrolyte replacement, and corticosteroids is necessary as the patient is systemically unwell. Stool microscopy, culture, and sensitivity should be performed to rule out any infectious causes. Azathioprine has been prescribed but has caused side-effects and takes too long to take effect. Immediate surgery is not necessary as the patient has stable observations and a soft abdomen. Infliximab is an option for severe cases but requires screening for tuberculosis. Oral steroids may be considered for mild cases, but given the patient’s non-compliance and current presentation, they are not suitable.

    • This question is part of the following fields:

      • Gastroenterology
      60.5
      Seconds
  • Question 21 - A 45-year-old man presents with abnormal liver function tests. He reports being a...

    Correct

    • A 45-year-old man presents with abnormal liver function tests. He reports being a teetotaler and having no risk factors for liver disease. However, his grandfather passed away from liver cancer. Upon investigation, his serum albumin is 38 g/L (37-49), serum total bilirubin is 41 μmol/L (1-22), serum alanine aminotransferase is 105 U/L (5-35), serum alkaline phosphatase is 115 U/L (45-105), serum ferritin is 1360 μg/L (15-300), and serum iron saturation is 84%. What is the likely diagnosis?

      Your Answer: Haemochromatosis

      Explanation:

      Differentiating Hereditary Haemochromatosis from Other Liver Diseases

      Raised serum ferritin levels and increased transferrin saturation, with or without abnormal liver function tests, are indicative of hereditary haemochromatosis. On the other hand, abnormal serum ferritin and iron saturation are not observed in alpha-1 antitrypsin deficiency. Diagnosis of the latter involves measuring serum alpha-1 antitrypsin levels and pi-typing for mutant alleles.

      In primary biliary cirrhosis (PBC), liver function abnormalities follow a cholestatic pattern, and it typically affects middle-aged females. However, serum ferritin and iron studies are normal in PBC. Primary sclerosing cholangitis (PSC) is characterized by a disproportionate elevation (4-10 times normal) in serum alkaline phosphatase, and patients with PSC usually have a history of inflammatory bowel disease.

      Finally, Wilson’s disease is a condition that primarily affects young people, usually in their second or third decade of life. It is rare for Wilson’s disease to manifest after the age of 40. By the unique characteristics of each liver disease, healthcare professionals can make an accurate diagnosis and provide appropriate treatment.

    • This question is part of the following fields:

      • Gastroenterology
      49.5
      Seconds
  • Question 22 - What is the most likely diagnosis for a 45-year-old woman who has had...

    Incorrect

    • What is the most likely diagnosis for a 45-year-old woman who has had severe itching for three weeks and presents to your clinic with abnormal liver function tests and a positive anti-TPO antibody?

      Your Answer: Autoimmune hepatitis

      Correct Answer: Primary biliary cholangitis

      Explanation:

      Autoimmune Diseases and Hepatic Disorders: A Comparison of Symptoms and Diagnostic Findings

      Primary biliary cholangitis is characterized by severe itching, mild jaundice, and elevated levels of alkaline phosphatase, ALT, and AST. Anti-mitochondrial antibody is positive, and LDL and TG may be mildly elevated. Patients may also exhibit microcytic anemia and elevated anti-TPO levels, as seen in Hashimoto’s thyroiditis. In contrast, primary sclerosing cholangitis affects men and is associated with colitis due to inflammatory bowel disease. Anti-mitochondrial antibody is often negative, and p-ANCA is often positive. Addison’s disease is characterized by fatigue, weakness, weight loss, hypoglycemia, and hyperkalemia, and may coexist with other autoimmune diseases. Autoimmune hepatitis is characterized by elevated levels of ANA, anti-smooth muscle antibody, anti-mitochondrial antibody, and anti-LKM antibody, with normal or slightly elevated levels of alkaline phosphatase. Chronic viral hepatitis is indicated by elevated levels of HBs antigen and anti-HBC antibody, with anti-HBs antibody indicating a history of prior infection or vaccination.

    • This question is part of the following fields:

      • Gastroenterology
      23
      Seconds
  • Question 23 - A 67-year-old Indian woman presents to the Emergency Department with vomiting and central...

    Correct

    • A 67-year-old Indian woman presents to the Emergency Department with vomiting and central abdominal pain. She has vomited eight times over the last 24 hours. The vomit is non-bilious and non-bloody. She also reports that she has not moved her bowels for the last four days and is not passing flatus. She reports that she had some form of radiation therapy to her abdomen ten years ago in India for ‘stomach cancer’. There is no urinary urgency or burning on urination. She migrated from India to England two months ago. She reports no other past medical or surgical history.
      Her observations and blood tests results are shown below:
      Investigation Result Normal value
      Temperature 36.9 °C
      Blood pressure 155/59 mmHg
      Heart rate 85 beats per minute
      Respiratory rate 19 breaths per minute
      Sp(O2) 96% (room air)
      White cell count 8.9 × 109/l 4–11 × 109/l
      C-reactive protein 36 mg/l 0–10 mg/l
      The patient’s urine dipstick is negative for leukocytes and nitrites. Physical examination reveals a soft but distended abdomen. No abdominal scars are visible. There is mild tenderness throughout the abdomen. Bowel sounds are hyperactive. Rectal examination reveals no stool in the rectal vault, and no blood or melaena.
      Which of the following is the most likely diagnosis?

      Your Answer: Small bowel obstruction

      Explanation:

      Differential Diagnosis for Abdominal Pain: Small Bowel Obstruction, Acute Mesenteric Ischaemia, Diverticulitis, Pyelonephritis, and Viral Gastroenteritis

      Abdominal pain can have various causes, and it is important to consider different possibilities to provide appropriate management. Here are some differential diagnoses for abdominal pain:

      Small bowel obstruction (SBO) is characterized by vomiting, lack of bowel movements, and hyperactive bowel sounds. Patients who have had radiation therapy to their abdomen are at risk for SBO. Urgent management includes abdominal plain film, intravenous fluids, nasogastric tube placement, analgesia, and surgical review.

      Acute mesenteric ischaemia is caused by reduced arterial blood flow to the small intestine. Patients with vascular risk factors such as hypertension, smoking, and diabetes mellitus are at risk. Acute-onset abdominal pain that is out of proportion to examination findings is a common symptom.

      Diverticulitis presents with left iliac fossa pain, pyrexia, and leukocytosis. Vital signs are usually stable.

      Pyelonephritis is characterized by fevers or chills, flank pain, and lower urinary tract symptoms.

      Viral gastroenteritis typically presents with fast-onset diarrhea and vomiting after ingestion of contaminated food. However, the patient in this case has not had bowel movements for four days.

      In summary, abdominal pain can have various causes, and it is important to consider the patient’s history, physical examination, and laboratory findings to arrive at an accurate diagnosis and provide appropriate management.

    • This question is part of the following fields:

      • Gastroenterology
      86.2
      Seconds
  • Question 24 - A 20-year-old male has been referred by his doctor due to experiencing severe...

    Correct

    • A 20-year-old male has been referred by his doctor due to experiencing severe bloody diarrhoea on and off for the past three months. After undergoing a barium enema, it was discovered that he has multiple ulcers and signs of inflammation that extend from his rectum to the mid transverse colon. A colonoscopy was performed and biopsies were taken from various sites, revealing acute and chronic inflammation that is limited to the mucosa. What is the most probable diagnosis for this patient?

      Your Answer: Ulcerative colitis

      Explanation:

      Differences between Ulcerative Colitis and Crohn’s Disease

      Ulcerative colitis (UC) and Crohn’s disease are both types of inflammatory bowel disease that can cause bloody diarrhoea. However, UC is more likely to result in the passage of blood. The onset of UC usually begins in the distal part of the colon and progresses towards the proximal end. On the other hand, Crohn’s disease can affect any part of the gastrointestinal tract and can skip areas, resulting in disease occurring at different sites.

      Histologically, Crohn’s disease affects the entire thickness of the bowel wall, while UC typically only affects the mucosa. This means that Crohn’s disease can cause more severe damage to the bowel wall and lead to complications such as strictures and fistulas. In contrast, UC is more likely to cause inflammation and ulceration of the mucosa, which can lead to symptoms such as abdominal pain and diarrhoea.

      In summary, while both UC and Crohn’s disease can cause similar symptoms, there are important differences in their presentation and histological features. these differences is crucial for accurate diagnosis and appropriate management of these conditions.

    • This question is part of the following fields:

      • Gastroenterology
      29.3
      Seconds
  • Question 25 - Olivia is a 15-year-old girl presenting with abdominal pains. The abdominal pain was...

    Incorrect

    • Olivia is a 15-year-old girl presenting with abdominal pains. The abdominal pain was around her lower abdomen and is crampy in nature and occasionally radiates to her back. Her pain normally comes on approximately before the onset of her period. She also feels increasingly fatigued during this period. No abdominal pains were noted outside of this menstrual  period. Olivia has no significant medical history. She denies any recent changes in her diet or bowel habits. She has not experienced any recent weight loss or rectal bleeding. She denies any family history of inflammatory bowel disease or colon cancer. Given the likely diagnosis, what is the likely 1st line treatment?

      Your Answer: Combined oral contraceptive pill

      Correct Answer: Mefenamic acid

      Explanation:

      Primary dysmenorrhoea is likely the cause of the patient’s abdominal pain, as it occurs around the time of her menstrual cycle and there are no other accompanying symptoms. Since the patient is not sexually active and has no risk factors, a pelvic ultrasound may not be necessary to diagnose primary dysmenorrhoea. The first line of treatment for this condition is NSAIDs, such as mefenamic acid, ibuprofen, or naproxen, which work by reducing the amount of prostaglandins in the body and thereby reducing the severity of pain.

      Dysmenorrhoea is a condition where women experience excessive pain during their menstrual period. There are two types of dysmenorrhoea: primary and secondary. Primary dysmenorrhoea affects up to 50% of menstruating women and is not caused by any underlying pelvic pathology. It usually appears within 1-2 years of the menarche and is thought to be partially caused by excessive endometrial prostaglandin production. Symptoms include suprapubic cramping pains that may radiate to the back or down the thigh, and pain typically starts just before or within a few hours of the period starting. NSAIDs such as mefenamic acid and ibuprofen are effective in up to 80% of women, and combined oral contraceptive pills are used second line for management.

      Secondary dysmenorrhoea, on the other hand, typically develops many years after the menarche and is caused by an underlying pathology. The pain usually starts 3-4 days before the onset of the period. Causes of secondary dysmenorrhoea include endometriosis, adenomyosis, pelvic inflammatory disease, intrauterine devices, and fibroids. Clinical Knowledge Summaries recommend referring all patients with secondary dysmenorrhoea to gynaecology for investigation. It is important to note that the intrauterine system (Mirena) may help dysmenorrhoea, but this only applies to normal copper coils.

    • This question is part of the following fields:

      • Gastroenterology
      54.3
      Seconds
  • Question 26 - A 61-year-old man has been admitted to a General Surgical Ward, following an...

    Correct

    • A 61-year-old man has been admitted to a General Surgical Ward, following an endoscopic retrograde cholangiopancreatography (ERCP) for acute cholangitis. The procedure took place approximately two hours ago and went well, without complications. The patient is now complaining of central abdominal pain, radiating to the back.
      His observations are normal. Examination is significant for central abdominal pain. His blood tests are significant for an amylase level of 814 u/l. His pre-ERCP amylase level was 89 u/l.
      What is the most likely diagnosis?

      Your Answer: Acute pancreatitis

      Explanation:

      Complications of ERCP: Post-ERCP Pancreatitis, Papillary Stenosis, Anaphylaxis, Duodenal Pneumostasis, and Oesophageal Perforation

      Endoscopic retrograde cholangiopancreatography (ERCP) is a diagnostic and therapeutic procedure used to examine the bile ducts and pancreatic ducts. However, like any medical procedure, ERCP is not without risks. Here are some of the possible complications of ERCP:

      Post-ERCP Pancreatitis: This is a common complication of ERCP, with an incidence of approximately 2-3%. It is characterized by abdominal pain that radiates to the back and a significant elevation in amylase levels. Treatment involves analgesia, hydration, and bowel rest.

      Papillary Stenosis: This is a late complication of ERCP that occurs in approximately 2-4% of patients. It is treated with endoscopic management, such as stenting or balloon dilation.

      Anaphylaxis: Although rare, anaphylactic reactions to contrast agents used during ERCP can occur. Symptoms include respiratory compromise and hypotension, and treatment involves adrenaline and airway support.

      Duodenal Pneumostasis: This complication refers to a collection of air in the duodenal wall and is typically recognized during the procedure. The procedure should be stopped to avoid bowel perforation.

      Oesophageal Perforation: This is a rare complication of ERCP that typically presents with chest pain, mediastinitis, and cardiovascular instability.

      In conclusion, while ERCP is a useful diagnostic and therapeutic tool, it is important to be aware of the potential complications and to take appropriate measures to prevent and manage them.

    • This question is part of the following fields:

      • Gastroenterology
      24.9
      Seconds
  • Question 27 - Which statement about kernicterus is not true? ...

    Incorrect

    • Which statement about kernicterus is not true?

      Your Answer: May cause a chronic syndrome of athetosis, gaze disturbance and hearing loss

      Correct Answer: Diagnosis requires the histological confirmation of yellow staining of brain tissue on autopsy caused by fat soluble unconjugated hyperbilirubinaemia

      Explanation:

      Hyperbilirubinemia and its Effects on Infants

      Hyperbilirubinemia, a condition characterized by high levels of bilirubin in the blood, can have severe consequences for infants. In some cases, intracellular crystals may be observed in the intestinal mucosa of affected infants, which may be related to gastrointestinal bleeding. However, the most significant long-term effects of hyperbilirubinemia are neurological in nature. Infants who experience marked hyperbilirubinemia may develop a chronic syndrome of neurological sequelae, including athetosis, gaze disturbance, and hearing loss.

      Even if the affected infant survives the neonatal period, the effects of hyperbilirubinemia may persist. If the infant subsequently dies, the yellow staining of neural tissue may no longer be present, but microscopic evidence of cell injury, neuronal loss, and glial replacement may be observed in the basal ganglia. These findings highlight the importance of early detection and treatment of hyperbilirubinemia in infants to prevent long-term neurological damage.

    • This question is part of the following fields:

      • Gastroenterology
      15.2
      Seconds
  • Question 28 - A 55-year-old man presents with epigastric pain which radiates to the back. He...

    Correct

    • A 55-year-old man presents with epigastric pain which radiates to the back. He feels nauseous and has been vomiting since arriving at the Emergency Department (ED). On questioning, the man tells you that he takes no regular medication. He was last in hospital three years ago after he fell from his bicycle when cycling under the influence of alcohol. He was not admitted. He travelled to Nigeria to visit relatives three months ago.
      On examination, the man’s abdomen is tender in the epigastrium. He is jaundiced. He is also tachycardic and pyrexial. Some of his investigation results are as follows:
      Investigation Result Normal value
      Alkaline phosphatase (ALP) 320 IU/l 30–130 IU/l
      Alanine aminotransferase (ALT) 70 IU/l 5–30 IU/l
      Bilirubin 45 µmol/l 2–17 µmol/l
      What is the best initial treatment for this man?

      Your Answer: Admission, iv fluids, analgesia, keep nil by mouth and place a nasogastric tube

      Explanation:

      Appropriate Treatment for Pancreatitis and Cholecystitis: Differentiating Symptoms and Initial Management

      Pancreatitis and cholecystitis are two conditions that can present with similar symptoms, such as epigastric pain and nausea. However, the nature of the pain and other clinical indicators can help differentiate between the two and guide appropriate initial treatment.

      For a patient with pancreatitis, initial treatment would involve admission, IV fluids, analgesia, and keeping them nil by mouth. A nasogastric tube may also be placed to help with vomiting and facilitate healing. Antibiotics and surgical intervention are not typically indicated unless there are complications such as necrosis or abscess.

      In contrast, a patient with cholecystitis would receive broad-spectrum antibiotics and analgesia as initial management. Laparoscopic cholecystectomy would only be considered after further investigations such as abdominal ultrasound or MRCP.

      It’s important to note that other factors, such as a recent history of travel, may also need to be considered in determining appropriate treatment. However, careful evaluation of symptoms and clinical indicators can help guide initial management and ensure the best possible outcomes for patients.

    • This question is part of the following fields:

      • Gastroenterology
      54.1
      Seconds
  • Question 29 - A 49-year-old man is admitted with chronic alcoholic liver disease. He gives little...

    Correct

    • A 49-year-old man is admitted with chronic alcoholic liver disease. He gives little history himself. On examination, he has grade 1 encephalopathy, a liver enlarged by 4 cm and clinically significant ascites.
      Which one of the following combinations is most reflective of synthetic liver function?

      Your Answer: Prothrombin time and albumin

      Explanation:

      Understanding Liver Function Tests: Indicators of Synthetic and Parenchymal Function

      Liver function tests are crucial in determining the nature of any liver impairment. The liver is responsible for producing vitamin K and albumin, and any dysfunction can lead to an increase in prothrombin time, indicating acute synthetic function. Albumin, on the other hand, provides an indication of synthetic liver function over a longer period due to its half-life of 20 days in serum.

      While prothrombin time is a reliable indicator, alkaline phosphatase (ALP) would be raised in obstructive (cholestatic) disease. Alanine aminotransferase (ALT) and aspartate aminotransferase (AST) represent liver parenchymal function, rather than synthetic function. It’s important to note that both can be normal despite significantly decreased synthetic function of the liver.

      While albumin does give an indication of liver function, it can be influenced by many other factors. ALP, on the other hand, would be raised in cholestatic disease. It’s important to consider all these factors when interpreting liver function tests, as neither ALT nor ALP would indicate synthetic function of the liver.

    • This question is part of the following fields:

      • Gastroenterology
      23.5
      Seconds
  • Question 30 - A 9-year-old girl is brought by her mother to the clinic. She has...

    Incorrect

    • A 9-year-old girl is brought by her mother to the clinic. She has been experiencing gradual difficulty in eating. She complains that when she swallows, the food gets stuck behind her chest and it takes a while for it to pass. She frequently regurgitates undigested food. A follow-up barium study reveals a bird's beak appearance. Which mediator's loss may be contributing to her symptoms?

      Your Answer: Gastrin

      Correct Answer: Nitric oxide

      Explanation:

      Understanding Achalasia: Causes, Symptoms, Diagnosis, and Treatment

      Achalasia is a condition where the lower esophageal sphincter fails to relax, causing difficulty in swallowing and regurgitation of undigested food. This is commonly due to the denervation of inhibitory neurons in the distal esophagus, leading to a progressive worsening of symptoms over time. Diagnosis is made through a barium study and manometry, which reveal a bird’s beak appearance of the lower esophagus and an abnormally high sphincter tone that fails to relax on swallowing. Nitric oxide, which increases smooth muscle relaxation and reduces sphincter tone, is reduced in achalasia. Treatment options include surgical intervention, botulinum toxin injection, and pharmacotherapy with drugs such as calcium channel blockers, long-acting nitrates, and sildenafil.

      Other gastrointestinal hormones such as cholecystokinin, motilin, somatostatin, and gastrin do not play a role in achalasia. Cholecystokinin stimulates pancreatic secretion and gallbladder contractions, while motilin is responsible for migrating motor complexes. Somatostatin decreases gastric acid and pancreatic secretion and gallbladder contractions. Gastrin promotes hydrochloric acid secretion in the stomach and can result in Zollinger-Ellison syndrome when produced in excess by a gastrinoma.

    • This question is part of the following fields:

      • Gastroenterology
      25.3
      Seconds

SESSION STATS - PERFORMANCE PER SPECIALTY

Gastroenterology (19/30) 63%
Passmed