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  • Question 1 - A 72-year-old male presents to the emergency department with complaints of new-onset pain...

    Incorrect

    • A 72-year-old male presents to the emergency department with complaints of new-onset pain in his left groin. Upon examination, a large, warm, non-reducible mass located inferolateral to the pubic tubercle is observed, accompanied by erythema of the overlying skin. The patient reports vomiting twice and passing stools with blood mixed in them once. He appears to be in pain and is sweating profusely. His medical history includes peptic ulcer disease, which is managed with omeprazole. What is the most likely diagnosis?

      Your Answer: Incarcerated inguinal hernia

      Correct Answer: Strangulated femoral hernia

      Explanation:

      A femoral hernia can lead to the serious complication of strangulation. In this case, the patient has a non-reducible mass located below the pubic tubercle, which is typical of a femoral hernia. However, the accompanying symptoms of vomiting, bloody stools, and a toxic appearance suggest that the hernia has become strangulated, meaning that the blood supply to the herniated tissue has been compromised and may lead to tissue death.

      An incarcerated femoral hernia would also present as a non-reducible mass below the pubic tubercle, but without the symptoms of strangulation.

      In contrast, an incarcerated inguinal hernia would present as a non-reducible mass above and towards the middle of the pubic tubercle, and would not cause symptoms of strangulation.

      A perforated peptic ulcer would cause pain in the upper abdomen, syncope, and possibly vomiting blood, which is different from the patient’s symptoms.

      Similarly, a strangulated inguinal hernia would cause similar symptoms, but the mass would be located above and towards the middle of the pubic tubercle, rather than below it.

      Understanding Femoral Hernias

      Femoral hernias occur when a part of the bowel or other abdominal organs pass through the femoral canal, which is a potential space in the anterior thigh. This can result in a lump in the groin area that is mildly painful and typically non-reducible. Femoral hernias are less common than inguinal hernias, accounting for only 5% of abdominal hernias, and are more prevalent in women, especially those who have had multiple pregnancies. Diagnosis is usually clinical, but ultrasound may be used to confirm the presence of a femoral hernia and exclude other possible causes of a lump in the groin area.

      Complications of femoral hernias include incarceration, where the herniated tissue cannot be reduced, and strangulation, which is a surgical emergency. The risk of strangulation is higher with femoral hernias than with inguinal hernias and increases over time. Bowel obstruction and bowel ischaemia may also occur, leading to significant morbidity and mortality for the patient.

      Surgical repair is necessary for femoral hernias, and it can be done laparoscopically or via a laparotomy. Hernia support belts or trusses should not be used for femoral hernias due to the risk of strangulation. In an emergency situation, a laparotomy may be the only option. It is essential to distinguish femoral hernias from inguinal hernias, as they have different locations and require different management approaches.

    • This question is part of the following fields:

      • Gastroenterology/Nutrition
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  • Question 2 - A 28-year-old female comes to the gastroenterology clinic for a follow-up on her...

    Incorrect

    • A 28-year-old female comes to the gastroenterology clinic for a follow-up on her Crohn's disease. She has been on budesonide for 3 months to induce remission and reports feeling well. She did not experience any acute episodes during treatment and her bowel habits are regular. The physician determines that she requires maintenance therapy. What is the most suitable medication to prescribe?

      Your Answer: Mesalazine

      Correct Answer: Azathioprine

      Explanation:

      Bone marrow suppression, which can be fatal, is a potential risk associated with the use of azathioprine as a second-line treatment for Crohn’s disease. Budesonide, a corticosteroid medication primarily used for asthma prevention, may be considered as a second-line option for inducing remission in Crohn’s patients. Mesalazine, which acts locally on the colon’s mucous membrane and has various anti-inflammatory effects, is less effective than glucocorticoids but can be used as a second-line option to induce remission. Methotrexate, a folate derivative that inhibits enzymes responsible for nucleotide synthesis, is the second-line medication used to maintain remission in Crohn’s patients. However, in this case, there is no indication to use second-line management instead of first-line treatment.

      Managing Crohn’s Disease: Guidelines and Treatment Options

      Crohn’s disease is a type of inflammatory bowel disease that can affect any part of the digestive tract. To manage this condition, the National Institute for Health and Care Excellence (NICE) has published guidelines that provide recommendations for inducing and maintaining remission, as well as treating complications. One of the most important steps in managing Crohn’s disease is to advise patients to quit smoking, as this can worsen the condition. Additionally, some medications, such as nonsteroidal anti-inflammatory drugs (NSAIDs) and the combined oral contraceptive pill, may increase the risk of relapse, although the evidence is not conclusive.

      To induce remission, glucocorticoids are often used, either orally, topically, or intravenously. Budesonide is an alternative for some patients. Enteral feeding with an elemental diet may also be used, especially in young children or when there are concerns about the side effects of steroids. Second-line treatments for inducing remission include 5-ASA drugs like mesalazine, as well as azathioprine or mercaptopurine, which may be used in combination with other medications. Methotrexate is another option. Infliximab is useful for refractory disease and fistulating Crohn’s, and patients may continue on azathioprine or methotrexate.

      To maintain remission, stopping smoking is a priority, and azathioprine or mercaptopurine is used first-line. TPMT activity should be assessed before starting these medications. Methotrexate is used second-line. Surgery may be necessary for around 80% of patients with Crohn’s disease, depending on the location and severity of the disease. Complications of Crohn’s disease include small bowel cancer, colorectal cancer, and osteoporosis. Perianal fistulae and abscesses require specific treatments, such as oral metronidazole, anti-TNF agents like infliximab, or a draining seton. By following these guidelines and treatment options, patients with Crohn’s disease can better manage their condition and improve their quality of life.

    • This question is part of the following fields:

      • Gastroenterology/Nutrition
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  • Question 3 - What is an accurate statement about alcoholic liver disease (ALD)? ...

    Correct

    • What is an accurate statement about alcoholic liver disease (ALD)?

      Your Answer: In alcoholic hepatitis the AST : ALT ratio is at least 2 : 1

      Explanation:

      Alcoholic Liver Disease: Facts and Myths

      Alcoholic liver disease (ALD) is a common liver disease caused by overconsumption of alcohol. Here are some facts and myths about ALD:

      Myth: In alcoholic hepatitis, the AST:ALT ratio is less than 2:1.
      Fact: Unlike most other liver diseases, including viral hepatitis, alcoholic hepatitis exhibits at least a 2:1 AST:ALT ratio.

      Myth: Hepatic iron overload is not indicative of concomitant heterozygote haemochromatosis.
      Fact: Evidence of iron overload, such as elevated levels of transferrin saturation and serum ferritin, is common in ALD and may indicate concomitant heterozygote haemochromatosis.

      Myth: Women are less susceptible to ALD than men.
      Fact: Women are actually twice as susceptible to ALD than men, even when consumption is corrected for body weight, and may develop ALD with shorter durations and doses of chronic consumption.

      Myth: Alcoholic fatty infiltration is irreversible once established.
      Fact: Although steatosis (fatty infiltration) will develop in any individual who consumes a large quantity of alcohol over a long period of time, this process is usually transient and reversible. Alcoholic hepatitis and alcoholic fatty infiltration are reversible with abstinence and adequate nutrition.

      Myth: Alcoholic cirrhosis does not progress to hepatocellular carcinoma.
      Fact: Like other causes of liver cirrhosis, alcoholic cirrhosis can also progress to hepatocellular carcinoma.

      In conclusion, ALD is a serious liver disease that can have irreversible consequences if not addressed in a timely manner. It is important to understand the facts and myths surrounding this disease to ensure proper diagnosis and treatment.

    • This question is part of the following fields:

      • Gastroenterology/Nutrition
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  • Question 4 - A 65-year-old woman presents to the emergency department with central abdominal pain. She...

    Correct

    • A 65-year-old woman presents to the emergency department with central abdominal pain. She has vomited twice since the onset of the pain and has not passed any wind or faeces in the last twelve hours. Her medical history includes a partial small bowel resection due to traumatic perforation. On examination, her abdomen appears distended and there is generalised tenderness on palpation. Her blood tests reveal a Hb level of 153 g/L (115 - 160), platelets of 312 * 109/L (150 - 400), WBC count of 10.8 * 109/L (4.0 - 11.0), bilirubin of 17 µmol/L (3 - 17), ALP of 78 u/L (30 - 100), ALT of 29 u/L (3 - 40), and amylase of 880 U/L (70 - 300). What is the most likely diagnosis?

      Your Answer: Small bowel obstruction

      Explanation:

      Elevated serum amylase levels are not always indicative of acute pancreatitis, as they can also be seen in cases of small bowel obstruction. In this scenario, the patient is experiencing abdominal pain, vomiting, and a lack of bowel movements or gas, which are all typical symptoms of small bowel obstruction. The fact that the patient has a history of abdominal surgery further supports this diagnosis, despite the misleading blood test results. Acute cholecystitis, on the other hand, presents with different symptoms such as fever, right upper quadrant pain, and systemic distress, and does not typically cause elevated amylase levels. Acute pancreatitis may also be considered as a differential diagnosis, but it is not associated with a lack of bowel movements or gas, and previous bowel surgery is not a risk factor. Ascending cholangitis and large bowel obstruction can also be ruled out based on the patient’s symptoms and test results.

      Small bowel obstruction occurs when the small intestines are blocked, preventing the passage of food, fluids, and gas. The most common cause of this condition is adhesions, which can develop after previous surgeries, followed by hernias. Symptoms of small bowel obstruction include diffuse, central abdominal pain, nausea and vomiting (often bilious), constipation, and abdominal distension. Tinkling bowel sounds may also be present in early stages of obstruction. Abdominal x-ray is typically the first-line imaging for suspected small bowel obstruction, showing distended small bowel loops with fluid levels. CT is more sensitive and considered the definitive investigation, particularly in early obstruction. Management involves initial steps such as NBM, IV fluids, and nasogastric tube with free drainage. Some patients may respond to conservative management, but others may require surgery.

    • This question is part of the following fields:

      • Gastroenterology/Nutrition
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  • Question 5 - What is the most crucial measure to take in order to prevent the...

    Correct

    • What is the most crucial measure to take in order to prevent the advancement of non-alcoholic steatohepatitis in a 52-year-old woman who has been diagnosed through a liver biopsy?

      Your Answer: Weight loss

      Explanation:

      Non-Alcoholic Fatty Liver Disease: Causes, Features, and Management

      Non-alcoholic fatty liver disease (NAFLD) is a prevalent liver disease in developed countries, primarily caused by obesity. It encompasses a range of conditions, from simple steatosis (fat accumulation in the liver) to steatohepatitis (fat with inflammation) and may progress to fibrosis and liver cirrhosis. Insulin resistance is believed to be the primary mechanism leading to steatosis, making NAFLD a hepatic manifestation of metabolic syndrome. Non-alcoholic steatohepatitis (NASH) is a type of liver damage similar to alcoholic hepatitis but occurs in the absence of alcohol abuse. It affects around 3-4% of the general population and may be responsible for some cases of cryptogenic cirrhosis.

      NAFLD is usually asymptomatic, but hepatomegaly, increased echogenicity on ultrasound, and elevated ALT levels are common features. The enhanced liver fibrosis (ELF) blood test is recommended by NICE to check for advanced fibrosis in patients with incidental NAFLD. If the ELF blood test is not available, non-invasive tests such as the FIB4 score or NAFLD fibrosis score, in combination with a FibroScan, may be used to assess the severity of fibrosis. Patients with advanced fibrosis should be referred to a liver specialist for further evaluation, which may include a liver biopsy to stage the disease more accurately.

      The mainstay of NAFLD treatment is lifestyle changes, particularly weight loss, and monitoring. Research is ongoing into the role of gastric banding and insulin-sensitizing drugs such as metformin and pioglitazone. While there is no evidence to support screening for NAFLD in adults, NICE guidelines recommend the management of incidental NAFLD findings.

    • This question is part of the following fields:

      • Gastroenterology/Nutrition
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  • Question 6 - A General Practice is conducting an audit on the number of elderly patients...

    Correct

    • A General Practice is conducting an audit on the number of elderly patients with gastrointestinal symptoms who were referred for endoscopy without a clear clinical indication.
      Which of the following intestinal diseases necessitates blood tests and small intestinal biopsy for a precise diagnosis?

      Your Answer: Coeliac disease

      Explanation:

      Diagnosing Gastrointestinal Conditions through Biopsy Findings

      Biopsy findings play a crucial role in diagnosing various gastrointestinal conditions. However, some conditions require additional proof to confirm the diagnosis. Here are some examples:

      Coeliac disease: Biopsy findings may show changes in the small intestine, but they are non-specific. Positive serology for anti-endomysial or anti-gliadin antibodies is needed for confirmation.

      Abetalipoproteinemia: This condition can be diagnosed on biopsy findings alone. Clear enterocytes due to lipid accumulation are characteristic.

      Intestinal lymphangiectasia: Biopsy findings alone can diagnose primary intestinal lymphangiectasia, which is evidenced by the dilatation of lymphatics of the intestinal mucosa without any evidence of inflammation.

      Mycobacterium avium (M avium) infection: Foamy macrophages containing numerous acid-fast bacilli are characteristic of M avium infection and can be diagnosed through biopsy findings alone.

      Whipple’s disease: Biopsy findings alone can diagnose Whipple’s disease, which is characterised by swollen macrophages containing numerous periodic acid Schiff (PAS) positive granules due to the glycogen content of bacterial cell walls.

    • This question is part of the following fields:

      • Gastroenterology/Nutrition
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  • Question 7 - Each one of the following is a recognised complication of gastro-oesophageal reflux disease,...

    Correct

    • Each one of the following is a recognised complication of gastro-oesophageal reflux disease, except:

      Your Answer: Achalasia

      Explanation:

      Managing Gastro-Oesophageal Reflux Disease

      Gastro-oesophageal reflux disease (GORD) is a condition where gastric contents cause symptoms of oesophagitis. If GORD has not been investigated with endoscopy, it should be treated according to dyspepsia guidelines. However, if oesophagitis is confirmed through endoscopy, a full dose proton pump inhibitor (PPI) should be given for 1-2 months. If there is a positive response, low dose treatment may be given as required. If there is no response, double-dose PPI should be given for 1 month.

      On the other hand, if endoscopy shows negative reflux disease, a full dose PPI should be given for 1 month. If there is a positive response, low dose treatment may be given on an as-required basis with a limited number of repeat prescriptions. If there is no response, H2RA or prokinetic should be given for one month.

      Complications of GORD include oesophagitis, ulcers, anaemia, benign strictures, Barrett’s oesophagus, and oesophageal carcinoma. Therefore, it is important to manage GORD effectively to prevent these complications.

    • This question is part of the following fields:

      • Gastroenterology/Nutrition
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  • Question 8 - A 42-year-old man with a 4-week history of a diagnosed anal fissure returns...

    Incorrect

    • A 42-year-old man with a 4-week history of a diagnosed anal fissure returns to the general practice surgery for review. He has been regularly using stool softeners along with eating a healthy diet and drinking adequate water. He is still experiencing bleeding and pain on opening his bowels. Examination reveals an anal fissure with no alarming signs.
      Which of the following would be the most appropriate management at this stage?

      Your Answer: Urgent surgical referral

      Correct Answer: Topical glyceryl trinitrate (GTN)

      Explanation:

      Management of Primary Anal Fissure: Treatment Options and Referral Guidelines

      Primary anal fissure is a common condition that can cause significant pain and discomfort. The National Institute for Health and Care Excellence (NICE) provides guidelines for the management of this condition, which include prescribing rectal topical glyceryl trinitrate (GTN) 0.4% ointment for 6-8 weeks to relieve pain and aid healing. Referral to a colorectal surgeon is warranted if the fissure does not heal after this period. Botulinum toxin injections can be considered in secondary care settings for chronic and recurrent cases, but only after a trial of topical GTN. Taking no action is not recommended, as it can lead to chronic non-healing ulcers. Trying different laxatives, such as senna, is also unlikely to help and should not be the first-line treatment for anal fissure. Overall, early intervention with topical GTN and appropriate referral can improve outcomes for patients with primary anal fissure.

    • This question is part of the following fields:

      • Gastroenterology/Nutrition
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  • Question 9 - A 28-year-old woman comes in for a check-up. She has a history of...

    Correct

    • A 28-year-old woman comes in for a check-up. She has a history of perianal abscess, but no other significant medical issues. Over the past few months, she has visited the Emergency Department twice due to persistent abdominal pain. She has also experienced occasional episodes of bloody diarrhea. Blood tests reveal microcytic anemia and mild hypokalemia. Her albumin levels are low, but her liver function tests are normal. Barium imaging shows a small bowel stricture with evidence of mucosal ulceration, as well as normal-looking mucosa and skip pattern lesions. Based on these symptoms, what is the most likely diagnosis?

      Your Answer: Crohn's disease

      Explanation:

      Differential Diagnosis of Chronic Diarrhoea with Abdominal Pain and Weight Loss

      Chronic diarrhoea with abdominal pain and weight loss can be indicative of various gastrointestinal disorders. A thorough differential diagnosis is necessary to determine the underlying cause.

      Crohn’s Disease: This inflammatory bowel disease can affect any part of the gastrointestinal tract and is characterized by prolonged diarrhoea with abdominal pain, weight loss, and fatigue. Diarrhoea is usually not bloody, but if the colon is involved, patients may report diffuse abdominal pain accompanied by mucus, blood, and pus in the stool. Serologic tests such as ASCA and p-ANCA can help differentiate Crohn’s disease from other conditions.

      Ulcerative Colitis: Unlike Crohn’s disease, UC involves only the large bowel and is characterized by rectal bleeding, frequent stools, and mucus discharge from the rectum. Sigmoidoscopy can confirm the diagnosis.

      Small Bowel Lymphoma: MALTomas can occur in various gastrointestinal sites, but most patients have no physical findings.

      Coeliac Disease: This chronic disorder results in an inability to tolerate gliadin and is characterized by electrolyte imbalances, evidence of malnutrition, and anaemia. Diarrhoea is the most common symptom, with characteristic foul-smelling stools.

      Tropical Sprue: This syndrome is characterized by acute or chronic diarrhoea, weight loss, and nutrient malabsorption and occurs in residents or visitors to the tropics and subtropics. However, it is not suggestive in the absence of a history of foreign travel.

      In conclusion, a thorough evaluation of symptoms and diagnostic tests is necessary to differentiate between these gastrointestinal disorders and determine the appropriate treatment plan.

    • This question is part of the following fields:

      • Gastroenterology/Nutrition
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  • Question 10 - A 64-year-old man comes to his GP complaining of pain when swallowing for...

    Incorrect

    • A 64-year-old man comes to his GP complaining of pain when swallowing for the past 2 months. He works as a construction worker and has had two colds in the past 2 months since the new building project started - despite his cold symptoms resolving, he reports an ongoing painful swallow. He has noticed some hoarseness in his voice, but attributes this to drinking less water than usual due to his painful swallow. He has no past medical history. He has a 25 pack-year smoking history and does not drink alcohol.
      What should be the GP's next course of action?

      Your Answer: Refer to the emergency department for chest x-ray and bloods

      Correct Answer: Refer for upper GI endoscopy

      Explanation:

      The presence of odynophagia in a patient with risk factors such as smoking and age is a concerning symptom that may indicate oesophageal cancer. In this case, the patient should be referred for a 2 week wait upper GI endoscopy and questioned about other symptoms such as difficulty swallowing, reflux, weight loss, and nausea. It would be inappropriate to reassure the patient and advise over-the-counter medications without further investigation. A chest x-ray is unlikely to show any clear oesophageal pathologies and a barium swallow is only useful if a benign pathology is suspected. As the patient has two features of oesophageal cancer and a smoking history, she should be worked up as a potential cancer patient. There are no emergency symptoms that warrant referral to the emergency department for same-day investigation and blood tests are unlikely to indicate malignancy in a clear and obvious manner.

      Oesophageal Cancer: Types, Risk Factors, Features, Diagnosis, and Treatment

      Oesophageal cancer used to be mostly squamous cell carcinoma, but adenocarcinoma is now becoming more common, especially in patients with a history of gastro-oesophageal reflux disease (GORD) or Barrett’s. Adenocarcinoma is usually located near the gastroesophageal junction, while squamous cell tumours are found in the upper two-thirds of the oesophagus.

      Risk factors for adenocarcinoma include GORD, Barrett’s oesophagus, smoking, achalasia, and obesity. Squamous cell cancer is more common in the developing world and is associated with smoking, alcohol, achalasia, Plummer-Vinson syndrome, and diets rich in nitrosamines.

      The most common presenting symptom for both types of oesophageal cancer is dysphagia, followed by anorexia and weight loss. Other possible features include odynophagia, hoarseness, melaena, vomiting, and cough.

      Diagnosis is done through upper GI endoscopy with biopsy, endoscopic ultrasound for locoregional staging, CT scanning for initial staging, and FDG-PET CT for detecting occult metastases. Laparoscopy may also be performed to detect occult peritoneal disease.

      Operable disease is best managed by surgical resection, with the most common procedure being an Ivor-Lewis type oesophagectomy. However, the biggest surgical challenge is anastomotic leak, which can result in mediastinitis. Adjuvant chemotherapy may also be used in many patients.

      Overall, oesophageal cancer is a serious condition that requires prompt diagnosis and treatment. Understanding the types, risk factors, features, diagnosis, and treatment options can help patients and healthcare providers make informed decisions about managing this disease.

    • This question is part of the following fields:

      • Gastroenterology/Nutrition
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  • Question 11 - A 50-year-old man with a history of gallstone disease comes to the clinic...

    Incorrect

    • A 50-year-old man with a history of gallstone disease comes to the clinic complaining of pain in the right upper quadrant for the past two days. He reports feeling like he has the flu and his wife mentions that he has had a fever for the past day. During the examination, his temperature is recorded as 38.1ºC, blood pressure at 100/60 mmHg, and pulse at 102/min. He experiences tenderness in the right upper quadrant and his sclera have a yellowish tint. What is the most probable diagnosis?

      Your Answer: Acute cholecystitis

      Correct Answer: Ascending cholangitis

      Explanation:

      The presence of fever, jaundice, and pain in the right upper quadrant indicates Charcot’s cholangitis triad, which is commonly associated with ascending cholangitis. This combination of symptoms is not typically seen in cases of acute cholecystitis.

      Understanding Ascending Cholangitis

      Ascending cholangitis is a bacterial infection that affects the biliary tree, with E. coli being the most common culprit. This condition is often associated with gallstones, which can predispose individuals to the infection. Patients with ascending cholangitis may present with Charcot’s triad, which includes fever, right upper quadrant pain, and jaundice. However, this triad is only present in 20-50% of cases. Other common symptoms include hypotension and confusion. In severe cases, Reynolds’ pentad may be observed, which includes the additional symptoms of hypotension and confusion.

      To diagnose ascending cholangitis, ultrasound is typically used as a first-line investigation to look for bile duct dilation and stones. Raised inflammatory markers may also be observed. Treatment involves intravenous antibiotics and endoscopic retrograde cholangiopancreatography (ERCP) after 24-48 hours to relieve any obstruction.

      Overall, ascending cholangitis is a serious condition that requires prompt diagnosis and treatment. Understanding the symptoms and risk factors associated with this condition can help individuals seek medical attention early and improve their chances of a successful recovery.

    • This question is part of the following fields:

      • Gastroenterology/Nutrition
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  • Question 12 - A 56-year-old woman complains of dysphagia for the past 3 months, affecting both...

    Incorrect

    • A 56-year-old woman complains of dysphagia for the past 3 months, affecting both solids and liquids, accompanied by heartburn symptoms. What could be the probable underlying diagnosis?

      Your Answer: Oesophageal cancer

      Correct Answer: Achalasia

      Explanation:

      The patient’s symptoms suggest achalasia, as they have experienced difficulty swallowing both solids and liquids from the beginning.

      Understanding Achalasia: Symptoms, Diagnosis, and Treatment

      Achalasia is a medical condition characterized by the failure of oesophageal peristalsis and relaxation of the lower oesophageal sphincter (LOS) due to the degenerative loss of ganglia from Auerbach’s plexus. This results in a contracted LOS and a dilated oesophagus above it. It is a condition that typically presents in middle-age and is equally common in men and women.

      The clinical features of achalasia include dysphagia of both liquids and solids, heartburn, regurgitation of food, and variation in the severity of symptoms. If left untreated, it may lead to cough, aspiration pneumonia, and even malignant change in a small number of patients. To diagnose achalasia, oesophageal manometry is considered the most important diagnostic test. It shows excessive LOS tone that doesn’t relax on swallowing. A barium swallow may also be used to show a grossly expanded oesophagus with a fluid level and a ‘bird’s beak’ appearance. A chest x-ray may reveal a wide mediastinum and fluid level.

      The treatment of achalasia involves pneumatic (balloon) dilation, which is increasingly becoming the preferred first-line option. It is less invasive and has a quicker recovery time than surgery. However, patients should be a low surgical risk as surgery may be required if complications occur. Surgical intervention with a Heller cardiomyotomy should be considered if recurrent or persistent symptoms occur. In some cases, an intra-sphincteric injection of botulinum toxin may be used in patients who are a high surgical risk. Drug therapy, such as nitrates and calcium channel blockers, may also have a role but is limited by side-effects. Understanding the symptoms, diagnosis, and treatment of achalasia is crucial in managing this condition effectively.

    • This question is part of the following fields:

      • Gastroenterology/Nutrition
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  • Question 13 - A 50-year-old woman visits your clinic to ask about the national screening programme...

    Incorrect

    • A 50-year-old woman visits your clinic to ask about the national screening programme for colorectal cancer. What is the correct statement regarding this?

      Your Answer: Patients after the age of 50 are offered a surveillance colonoscopy every 10 years until 80

      Correct Answer: Faecal immunochemical test (FIT) test kits are sent every 2 years to all patients aged 60-74 years in England, 50-74 years in Scotland

      Explanation:

      To screen for colorectal cancer, faecal immunochemical tests (FIT) are utilized. Patients aged 60-74 years in England and 50-74 years in Scotland receive screening kits every 2 years. If the test results are abnormal, the patient is provided with the option of undergoing a colonoscopy.

      Colorectal Cancer Screening: Faecal Immunochemical Test (FIT)

      Colorectal cancer is often developed from adenomatous polyps. Screening for this type of cancer has been proven to reduce mortality by 16%. The NHS offers a home-based screening programme called Faecal Immunochemical Test (FIT) to older adults. A one-off flexible sigmoidoscopy was trialled in England for people aged 55 years, but it was abandoned in 2021 due to the inability to recruit enough clinical endoscopists, which was exacerbated by the COVID-19 pandemic. The trial, partly funded by Cancer Research UK, showed promising early results, and it remains to be seen whether flexible sigmoidoscopy will be used as part of a future bowel screening programme.

      Faecal Immunochemical Test (FIT) Screening:
      The NHS now has a national screening programme that offers screening every two years to all men and women aged 60 to 74 years in England and 50 to 74 years in Scotland. Patients aged over 74 years may request screening. Eligible patients are sent FIT tests through the post. FIT is a type of faecal occult blood (FOB) test that uses antibodies that specifically recognise human haemoglobin (Hb). It is used to detect and quantify the amount of human blood in a single stool sample. FIT has advantages over conventional FOB tests because it only detects human haemoglobin, as opposed to animal haemoglobin ingested through diet. Only one faecal sample is needed compared to the 2-3 for conventional FOB tests. While a numerical value is generated, this is not reported to the patient or GP. Instead, they will be informed if the test is normal or abnormal. Patients with abnormal results are offered a colonoscopy. At colonoscopy, approximately 5 out of 10 patients will have a normal exam, 4 out of 10 patients will be found to have polyps that may be removed due to their premalignant potential, and 1 out of 10 patients will be found to have cancer.

    • This question is part of the following fields:

      • Gastroenterology/Nutrition
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  • Question 14 - A 51-year-old woman presents with non-specific abdominal discomfort that has been bothering her...

    Correct

    • A 51-year-old woman presents with non-specific abdominal discomfort that has been bothering her for the past 2 months. She also reports experiencing loose stools up to three times a day for the past month, despite previously having solid stools once daily. She denies any weight loss or blood in her stool. Upon examination, her abdomen is soft and nontender, and she has normal urine dip results. Blood tests, including a CA-125 and coeliac screen, and a faecal calprotectin test all come back within the normal range. Although you suspect irritable bowel syndrome, the patient is worried about the possibility of colorectal cancer. What is the best course of action?

      Your Answer: Faecal immunochemical test (FIT)

      Explanation:

      If a patient shows new symptoms of possible colorectal cancer but does not meet the 2-week criteria, it is recommended to undergo the FIT test. In the case of a patient experiencing unexplained abdominal pain and a change in bowel habit, a FIT test is the most appropriate next step, according to NICE guidance, especially considering the patient’s age and the absence of rectal bleeding. It is not advisable to simply suggest diet changes or reassure the patient without conducting the necessary tests, as her symptoms require complete investigation. Repeating a faecal calprotectin level is unlikely to be helpful and may only delay the patient from receiving the appropriate support.

      Referral Guidelines for Colorectal Cancer

      Colorectal cancer is a serious condition that requires prompt diagnosis and treatment. In 2015, the National Institute for Health and Care Excellence (NICE) updated their referral guidelines for patients suspected of having colorectal cancer. According to these guidelines, patients who are 40 years or older with unexplained weight loss and abdominal pain, 50 years or older with unexplained rectal bleeding, or 60 years or older with iron deficiency anemia or change in bowel habit should be referred urgently to colorectal services for investigation. Additionally, patients who test positive for occult blood in their feces should also be referred urgently.

      An urgent referral should also be considered for patients who have a rectal or abdominal mass, unexplained anal mass or anal ulceration, or are under 50 years old with rectal bleeding and any of the following unexplained symptoms/findings: abdominal pain, change in bowel habit, weight loss, or iron deficiency anemia.

      The NHS offers a national screening program for colorectal cancer, which involves sending eligible patients aged 60 to 74 years in England and 50 to 74 years in Scotland FIT tests through the post. FIT is a type of fecal occult blood test that uses antibodies to detect and quantify the amount of human blood in a single stool sample. Patients with abnormal results are offered a colonoscopy.

      The FIT test is also recommended for patients with new symptoms who do not meet the 2-week criteria listed above. For example, patients who are 50 years or older with unexplained abdominal pain or weight loss, under 60 years old with changes in their bowel habit or iron deficiency anemia, or 60 years or older who have anemia even in the absence of iron deficiency. Early detection and treatment of colorectal cancer can significantly improve patient outcomes, making it important to follow these referral guidelines.

    • This question is part of the following fields:

      • Gastroenterology/Nutrition
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  • Question 15 - A 14-year-old boy has arrived at the emergency department after overdosing on paracetamol....

    Correct

    • A 14-year-old boy has arrived at the emergency department after overdosing on paracetamol. He has come in 3 days after taking the overdose due to feeling extremely ill. What liver disease patterns are most probable to be observed?

      Your Answer: High ALT. Normal ALP. ALT/ALP ratio high

      Explanation:

      Paracetamol overdose leads to a liver disease characterized by hepatocellular symptoms. This type of liver disease is different from cholestatic (obstructive) or mixed liver diseases, which have distinct laboratory test results. Hepatocellular disease is indicated by raised ALT levels, while cholestatic disease is indicated by raised ALP levels. Mixed liver disease has raised levels of both ALT and ALP. AST and ALT are both produced by hepatocytes, and in hepatocellular disease, these enzymes are released into the bloodstream, causing raised ALT levels. ALP, on the other hand, is produced by the cells lining the bile ducts, and its levels rise in obstructive liver disease.

      Understanding Drug-Induced Liver Disease

      Drug-induced liver disease is a condition that occurs when certain medications or drugs cause damage to the liver. This condition is generally divided into three categories: hepatocellular, cholestatic, or mixed. However, there is often overlap between these categories, as some drugs can cause a range of changes to the liver.

      Hepatocellular drug-induced liver disease is characterized by damage to the liver cells. Some of the drugs that tend to cause this type of damage include paracetamol, sodium valproate, phenytoin, MAOIs, halothane, anti-tuberculosis medications, statins, alcohol, amiodarone, methyldopa, and nitrofurantoin.

      Cholestatic drug-induced liver disease, on the other hand, is characterized by a reduction in bile flow from the liver. Some of the drugs that tend to cause this type of damage include the combined oral contraceptive pill, antibiotics such as flucloxacillin, co-amoxiclav, and erythromycin, anabolic steroids, testosterones, phenothiazines such as chlorpromazine and prochlorperazine, sulphonylureas, fibrates, and rare reported causes such as nifedipine. Methotrexate, methyldopa, and amiodarone can cause both hepatocellular and cholestatic damage.

      It is important to note that drug-induced liver disease can be a serious condition and can lead to liver cirrhosis if left untreated. Therefore, it is important to be aware of the potential risks associated with certain medications and to seek medical attention if any symptoms of liver damage occur.

    • This question is part of the following fields:

      • Gastroenterology/Nutrition
      62.2
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  • Question 16 - A 28-year-old man with Crohn's disease visits his primary care physician complaining of...

    Incorrect

    • A 28-year-old man with Crohn's disease visits his primary care physician complaining of discomfort in the area around his anus. He mentions the presence of malodorous pus when he cleans himself. During the examination, a draining opening is observed on his perineum. A digital rectal exam confirms the diagnosis of a perianal fistula. What imaging modality is the best option for this condition?

      Your Answer: CT pelvis

      Correct Answer: MRI pelvis

      Explanation:

      When investigating suspected perianal fistulae in patients with Crohn’s disease, MRI is the preferred imaging modality. This is because an MRI can accurately map out the extent and track of the fistula, as well as identify any associated abscesses or other fistulas. As perianal fistulas are a soft tissue pathology, an MRI pelvis is the most effective way to visualize them. Barium enema is not reliable for imaging small structures like fistulas, while CT pelvis may potentially identify fistulas but is less sensitive and accurate than MRI. Endo-anal ultrasound may be used for some perianal fistulas, but given the likelihood of complex fistulas in Crohn’s disease, MRI is the preferred option. Additionally, MRI is preferable in adults of reproductive age to avoid unnecessary radiation exposure to the reproductive organs.

      Managing Crohn’s Disease: Guidelines and Treatment Options

      Crohn’s disease is a type of inflammatory bowel disease that can affect any part of the digestive tract. To manage this condition, the National Institute for Health and Care Excellence (NICE) has published guidelines that provide recommendations for inducing and maintaining remission, as well as treating complications. One of the most important steps in managing Crohn’s disease is to advise patients to quit smoking, as this can worsen the condition. Additionally, some medications, such as nonsteroidal anti-inflammatory drugs (NSAIDs) and the combined oral contraceptive pill, may increase the risk of relapse, although the evidence is not conclusive.

      To induce remission, glucocorticoids are often used, either orally, topically, or intravenously. Budesonide is an alternative for some patients. Enteral feeding with an elemental diet may also be used, especially in young children or when there are concerns about the side effects of steroids. Second-line treatments for inducing remission include 5-ASA drugs like mesalazine, as well as azathioprine or mercaptopurine, which may be used in combination with other medications. Methotrexate is another option. Infliximab is useful for refractory disease and fistulating Crohn’s, and patients may continue on azathioprine or methotrexate.

      To maintain remission, stopping smoking is a priority, and azathioprine or mercaptopurine is used first-line. TPMT activity should be assessed before starting these medications. Methotrexate is used second-line. Surgery may be necessary for around 80% of patients with Crohn’s disease, depending on the location and severity of the disease. Complications of Crohn’s disease include small bowel cancer, colorectal cancer, and osteoporosis. Perianal fistulae and abscesses require specific treatments, such as oral metronidazole, anti-TNF agents like infliximab, or a draining seton. By following these guidelines and treatment options, patients with Crohn’s disease can better manage their condition and improve their quality of life.

    • This question is part of the following fields:

      • Gastroenterology/Nutrition
      49.4
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  • Question 17 - A 30-year-old woman presents with a complaint of epigastric pain after meals for...

    Correct

    • A 30-year-old woman presents with a complaint of epigastric pain after meals for the past 2 months. She has no significant medical history and is not currently taking any medications. Despite trying gaviscon, her symptoms have not improved. What is the most suitable course of action for management?

      Your Answer: Treat with a proton pump inhibitor (PPI) at full dose for 1 month

      Explanation:

      The patient is experiencing dyspepsia but does not exhibit any alarming symptoms nor is taking any medication that could trigger the condition. Lifestyle modifications should be recommended, followed by either a month-long administration of a full dose proton pump inhibitor (PPI) or testing and treatment for Helicobacter pylori.

      Management of Dyspepsia and Referral for Possible Cancer

      Dyspepsia is a common symptom that can be caused by various factors, including medication and lifestyle choices. However, it can also be a sign of underlying conditions such as stomach or oesophageal cancer. The 2015 NICE guidelines provide updated advice on when urgent referral for endoscopy is necessary. Patients with dysphagia or an upper abdominal mass consistent with stomach cancer should be referred urgently. Patients aged 55 years or older with weight loss and upper abdominal pain, reflux, or dyspepsia should also be referred urgently. Non-urgent referrals include patients with haematemesis or those with treatment-resistant dyspepsia, upper abdominal pain with low haemoglobin levels, or raised platelet count with other symptoms.

      For patients with undiagnosed dyspepsia, a step-wise approach is recommended. First, medications should be reviewed for possible causes. Lifestyle advice should also be given. If symptoms persist, a trial of full-dose proton pump inhibitor for one month or a ‘test and treat’ approach for H. pylori can be tried. If symptoms persist after either approach, the alternative should be attempted. Testing for H. pylori infection can be done using a carbon-13 urea breath test, stool antigen test, or laboratory-based serology. If symptoms resolve following test and treat, there is no need to check for H. pylori eradication. However, if repeat testing is required, a carbon-13 urea breath test should be used.

    • This question is part of the following fields:

      • Gastroenterology/Nutrition
      80.7
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  • Question 18 - Which of the following causes of diarrhea has the briefest incubation period? ...

    Correct

    • Which of the following causes of diarrhea has the briefest incubation period?

      Your Answer: Bacillus cereus

      Explanation:

      Gastroenteritis can occur either at home or while traveling, known as travelers’ diarrhea. This condition is characterized by at least three loose to watery stools in 24 hours, accompanied by abdominal cramps, fever, nausea, vomiting, or blood in the stool. The most common cause of travelers’ diarrhea is Escherichia coli. Acute food poisoning is another pattern of illness that results in sudden onset of nausea, vomiting, and diarrhea after ingesting a toxin. Staphylococcus aureus, Bacillus cereus, or Clostridium perfringens are typically responsible for acute food poisoning.

      There are several types of infections that can cause gastroenteritis, each with its own typical presentation. Escherichia coli is common among travelers and causes watery stools, abdominal cramps, and nausea. Giardiasis results in prolonged, non-bloody diarrhea, while cholera causes profuse, watery diarrhea and severe dehydration leading to weight loss. Shigella causes bloody diarrhea, vomiting, and abdominal pain, while Staphylococcus aureus results in severe vomiting with a short incubation period. Campylobacter typically starts with a flu-like prodrome and progresses to crampy abdominal pains, fever, and diarrhea, which may be bloody and mimic appendicitis. Bacillus cereus can cause two types of illness, vomiting within six hours, typically due to rice, or diarrheal illness occurring after six hours. Amoebiasis has a gradual onset of bloody diarrhea, abdominal pain, and tenderness that may last for several weeks.

      The incubation period for gastroenteritis varies depending on the type of infection. Staphylococcus aureus and Bacillus cereus have an incubation period of 1-6 hours, while Salmonella and Escherichia coli have an incubation period of 12-48 hours. Shigella and Campylobacter have an incubation period of 48-72 hours, while Giardiasis and Amoebiasis have an incubation period of more than seven days.

    • This question is part of the following fields:

      • Gastroenterology/Nutrition
      9.3
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  • Question 19 - Samantha, 72, has a confirmed sigmoid colon tumor graded as T3N0M0. Surgery was...

    Correct

    • Samantha, 72, has a confirmed sigmoid colon tumor graded as T3N0M0. Surgery was recommended as the primary treatment and scheduled for next week. However, she was rushed to the emergency department with severe abdominal pain, which was diagnosed as a perforation. What is the most suitable surgical procedure for Samantha?

      Your Answer: Hartmann's procedure

      Explanation:

      The most suitable surgery for the patient in this case would be a Hartmann’s procedure. To determine the appropriate surgery, it is essential to consider the urgency of the operation and the location of the malignancy. As the patient has an emergency perforation resulting from the malignancy, the surgery needs to be appropriate for an emergency situation. Under normal circumstances, the patient would undergo surgery that involves resection of the relevant section of bowel and anastomosis of the two ends. However, in emergency situations, anastomosis is not the preferred surgical option.

      A Hartmann’s procedure involves resection of the relevant portion of bowel and the formation of an end colostomy/ileostomy. In the future, patients can undergo a reversal of Hartmann’s procedure, where the end colostomy is closed following the formation of a colorectal anastomosis, restoring continuity of the bowels. This makes it the ideal surgical procedure for emergency situations. Additionally, this operation involves resection of the sigmoid colon, where the patient’s tumor is located.

      Colorectal cancer is typically diagnosed through CT scans and colonoscopies or CT colonography. Patients with tumors below the peritoneal reflection should also undergo MRI to evaluate their mesorectum. Once staging is complete, a treatment plan is formulated by a dedicated colorectal MDT meeting.

      For colon cancer, surgery is the primary treatment option, with resectional surgery being the only cure. The procedure is tailored to the patient and tumor location, with lymphatic chains being resected based on arterial supply. Anastomosis is the preferred method of restoring continuity, but in some cases, an end stoma may be necessary. Chemotherapy is often offered to patients with risk factors for disease recurrence.

      Rectal cancer management differs from colon cancer due to the rectum’s anatomical location. Tumors can be surgically resected with either an anterior resection or an abdomino-perineal excision of rectum (APER). A meticulous dissection of the mesorectal fat and lymph nodes is integral to the procedure. Neoadjuvant radiotherapy is often offered to patients prior to resectional surgery, and those with obstructing rectal cancer should have a defunctioning loop colostomy.

      Segmental resections based on blood supply and lymphatic drainage are the primary operations for cancer. The type of resection and anastomosis depend on the site of cancer. In emergency situations where the bowel has perforated, an end colostomy is often safer. Left-sided resections are more risky, but ileo-colic anastomoses are relatively safe even in the emergency setting and do not need to be defunctioned.

    • This question is part of the following fields:

      • Gastroenterology/Nutrition
      40.1
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  • Question 20 - A 35-year-old woman presents to the hospital with diarrhea and abdominal pain. She...

    Correct

    • A 35-year-old woman presents to the hospital with diarrhea and abdominal pain. She has a history of depression and takes citalopram, smokes 20 cigarettes per day, and drinks 20 units of alcohol per week. During ileocolonoscopy, Crohn's disease is diagnosed, and she is treated with glucocorticoid therapy. What is the most crucial step to decrease the likelihood of future episodes?

      Your Answer: Stop smoking

      Explanation:

      Managing Crohn’s Disease: Guidelines and Treatment Options

      Crohn’s disease is a type of inflammatory bowel disease that can affect any part of the digestive tract. To manage this condition, the National Institute for Health and Care Excellence (NICE) has published guidelines that provide recommendations for inducing and maintaining remission, as well as treating complications. One of the most important steps in managing Crohn’s disease is to advise patients to quit smoking, as this can worsen the condition. Additionally, some medications, such as nonsteroidal anti-inflammatory drugs (NSAIDs) and the combined oral contraceptive pill, may increase the risk of relapse, although the evidence is not conclusive.

      To induce remission, glucocorticoids are often used, either orally, topically, or intravenously. Budesonide is an alternative for some patients. Enteral feeding with an elemental diet may also be used, especially in young children or when there are concerns about the side effects of steroids. Second-line treatments for inducing remission include 5-ASA drugs like mesalazine, as well as azathioprine or mercaptopurine, which may be used in combination with other medications. Methotrexate is another option. Infliximab is useful for refractory disease and fistulating Crohn’s, and patients may continue on azathioprine or methotrexate.

      To maintain remission, stopping smoking is a priority, and azathioprine or mercaptopurine is used first-line. TPMT activity should be assessed before starting these medications. Methotrexate is used second-line. Surgery may be necessary for around 80% of patients with Crohn’s disease, depending on the location and severity of the disease. Complications of Crohn’s disease include small bowel cancer, colorectal cancer, and osteoporosis. Perianal fistulae and abscesses require specific treatments, such as oral metronidazole, anti-TNF agents like infliximab, or a draining seton. By following these guidelines and treatment options, patients with Crohn’s disease can better manage their condition and improve their quality of life.

    • This question is part of the following fields:

      • Gastroenterology/Nutrition
      35.1
      Seconds

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Gastroenterology/Nutrition (12/20) 60%
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