Gastroenterology Practice Questions

Q: Which of the following is not included in the Child-Turcotte-Pugh scoring system?

ALT. ***ALT*** - The **Child-Turcotte-Pugh (CTP) score** assesses the severity of **liver cirrhosis** and its prognosis, using parameters like bilirubin, albumin, INR, ascites, and encephalopathy. [1] - **Alanine aminotransferase (ALT)** levels are indicators of hepatocellular injury or inflammation but are not used in the CTP scoring system for chronic liver disease severity. [1] *Encephalopathy* - **Hepatic encephalopathy** is a crucial component of the CTP score, reflecting the liver's inability to detoxify harmful substances. [1] - Its presence and severity (graded 1-4) strongly correlate with a worse prognosis in **cirrhotic patients**. *Albumin* - **Albumin** levels are inversely correlated with the severity of liver dysfunction, as synthetic function of the liver declines. [1] - Low albumin (hypoalbuminemia) indicates poor **synthetic capacity** of the liver and is a prognostic marker in the CTP score. [1] *Ascites* - **Ascites**, the accumulation of fluid in the abdominal cavity, is a common complication of **portal hypertension** in advanced liver disease. [1] - Its presence and refractoriness are critical components of the CTP score, indicating significant fluid imbalance and circulatory dysfunction. [1]

Q: The most common cause of death in peptic ulcer patients is:

Hemorrhage. ***Hemorrhage*** - **Gastrointestinal bleeding** is the most frequent and life-threatening complication of peptic ulcers, leading to significant morbidity and mortality [1]. - Bleeding can range from occult blood loss to **massive hematemesis** or **melena**, which can quickly cause **hypovolemic shock** and death if not promptly managed [1]. *Perforation* - While a serious complication, leading to **peritonitis**, perforation is less common as a cause of death compared to hemorrhage [2]. - Perforation typically causes acute, severe abdominal pain and requires urgent surgical intervention [2]. *Pyloric stenosis* - This complication involves narrowing of the pyloric outlet due to **scarring from chronic ulceration**, causing **gastric outlet obstruction**. - Pyloric stenosis is more associated with chronic symptoms like **vomiting** and **weight loss**, and while debilitating, it is rarely a direct cause of immediate death. *Malignancy* - The risk of **malignant transformation** is primarily associated with **gastric ulcers**, particularly those due to *H. pylori* infection, but it is not a direct, immediate cause of death in the acute setting of peptic ulcer disease [2]. - **Duodenal ulcers** are almost never malignant.

Q: A 60-year-old male presents with progressive difficulty in swallowing, vomiting, and occasional regurgitation for the past three months. Barium studies show marked dilatation of the upper esophagus with narrowing of the lower segment. Manometry shows absent esophageal peristalsis. Which of the following conditions is he most likely at risk of developing?

Squamous cell carcinoma of the esophagus. ***Squamous cell carcinoma of the esophagus*** - The patient's symptoms (dysphagia, regurgitation, esophageal dilation) and manometry findings (absent peristalsis) are characteristic of **achalasia** [1]. - Long-standing achalasia is a significant risk factor for developing **squamous cell carcinoma of the esophagus** due to chronic inflammation and irritation of the esophageal lining. *Mallory-Weiss syndrome* - This condition involves **longitudinal tears** in the esophageal mucosa, typically near the gastroesophageal junction, due to forceful vomiting or retching. - While the patient experiences vomiting, the underlying pathology of achalasia does not directly predispose to esophageal tears more than other conditions causing vomiting. *Peptic ulcer disease* - Peptic ulcers are typically caused by **Helicobacter pylori infection** or **NSAID use**, affecting the stomach or duodenum. - Achalasia is a primary motility disorder of the esophagus and does not directly increase the risk of developing peptic ulcers. *Rupture of esophageal varices* - Esophageal varices are **dilated submucosal veins** in the lower esophagus, almost always a result of **portal hypertension**, commonly due to liver cirrhosis. - Achalasia does not cause portal hypertension or directly lead to the formation of esophageal varices.

Q: A 25-year-old woman presents with bloody diarrhea and is diagnosed with ulcerative colitis. Which of the following conditions is least likely to be associated with it?

Pancreatitis. ***Pancreatitis*** - While **pancreatitis** can occur with inflammatory bowel disease, it is generally considered a less common extraintestinal manifestation of **ulcerative colitis**. [1] - Other conditions like primary sclerosing cholangitis and ocular/arthritic manifestations have a stronger and more frequent association. [2] *Sclerosing cholangitis* - **Primary sclerosing cholangitis (PSC)** is strongly associated with ulcerative colitis, affecting a significant portion of patients. [3] - It involves progressive inflammation and fibrosis of the **bile ducts**, leading to cholestasis and liver damage. [3] *Iritis* - **Iritis** (anterior uveitis) is a known extraintestinal manifestation of inflammatory bowel disease, including ulcerative colitis. [2] - It presents with **eye pain, redness, and photophobia**, and requires prompt ophthalmologic evaluation. [2] *Ankylosing spondylitis* - **Ankylosing spondylitis** is a seronegative spondyloarthropathy that has a strong association with ulcerative colitis. [4] - It causes **chronic inflammatory back pain** and stiffness, predominantly affecting the spine and sacroiliac joints. [4]

Q: Monu, a 30-year-old male with a history of chronic alcoholism, presents with sudden onset of epigastric pain that radiates to the back. All are seen except:

Low serum lipase. ***Low serum lipase*** - In **acute pancreatitis**, serum lipase levels are typically **elevated**, not low, due to the inflammation and damage to pancreatic acinar cells. - A low serum lipase level would indicate a lack of pancreatic enzyme release, which contradicts the classic presentation of acute pancreatitis. *Increased LDH* - **Lactate dehydrogenase (LDH)** can be elevated in **severe acute pancreatitis**, indicating **tissue necrosis** and cell damage. - Elevated LDH is a marker of organ damage and can be used as an indicator of prognosis in acute pancreatitis, particularly in established scoring systems like Ranson's criteria. *Hypocalcaemia* - **Hypocalcaemia** can occur in acute pancreatitis due to the **saponification of peripancreatic fat** by free fatty acids, which binds calcium. - This is a serious complication, and severe hypocalcemia can lead to adverse outcomes like tetany and cardiac arrhythmias. *Increased serum amylase* - **Elevated serum amylase** is a hallmark finding in **acute pancreatitis**, typically rising within hours of onset. - Amylase levels are generally at least **three times the upper limit of normal** to be diagnostic of acute pancreatitis.

Q: What does the MELD diagnostic score predict in patients awaiting liver transplantation?

Predicts mortality in patients waiting for liver transplant. ***Predicts mortality in patients waiting for liver transplant*** - The **Model for End-Stage Liver Disease (MELD)** score was developed to predict **mortality risk** in patients with severe liver disease [1]. - It is crucial for **prioritizing patients** on the liver transplant waiting list, ensuring those with the greatest immediate need receive organs first. *Higher score - less mortality risk* - A **higher MELD score** indicates **more severe liver disease** and a **higher risk of mortality**, not less [1]. - The scoring system is designed to identify patients who are most critically ill and therefore have a greater need for transplantation [1]. *Predicts mortality risk for a 60 day period* - The MELD score was originally developed to predict **3-month (90-day) mortality** in patients undergoing transjugular intrahepatic portosystemic shunt (TIPS) procedures. - While it's used for short-term prediction, 60 days is not the standard predictive period. *It is a 4 to 60 scale* - The MELD score typically ranges from **6 to 40**, although extreme clinical conditions can lead to scores outside this range in rare cases. - A score of 4 would be unusually low and not reflective of the calculated range based on its components.

Q: A 43-year-old patient presents to the emergency department with chest pain, has a history of chronic alcoholism, and had an episode of vomiting with bright red blood. Endoscopy reveals a partial-thickness tear in the distal oesophagus. What is the diagnosis?

Mallory-Weiss tears. ***Mallory-Weiss tears*** - This condition involves a **partial-thickness tear** in the **distal oesophagus** due to forceful vomiting, often seen in association with **chronic alcoholism**. [1] - The presence of **bright red blood** in the vomitus after an episode of vomiting strongly suggests a Mallory-Weiss tear. [1] *Boerhaave syndrome* - This diagnosis typically presents with a **full-thickness oesophageal rupture**, leading to mediastinitis and sepsis, which is a more severe condition than a partial tear. - While also associated with forceful vomiting, the endoscopic finding of a **partial tear** rules out Boerhaave syndrome. *Alcoholic liver disease* - While the patient has a history of **chronic alcoholism**, liver disease itself does not directly cause an oesophageal tear or bleeding from vomiting. - Alcoholic liver disease can lead to **oesophageal varices**, but the endoscopy specifically found a tear, not variceal bleeding. *None of the options* - **Mallory-Weiss tears** perfectly match the clinical presentation of chronic alcoholism, forceful vomiting, bright red blood, and the endoscopic finding of a partial-thickness tear in the distal oesophagus.

Q: Which of the following is a feature of ulcerative colitis?

Proctitis. ***Proctitis*** - **Proctitis**, or inflammation of the rectum, is a hallmark feature of ulcerative colitis as the disease always begins in the rectum and can extend proximally [1]. - Patients typically experience **tenesmus**, urgency, and bloody diarrhea due to rectal involvement. *Spiking fever* - While patients with severe ulcerative colitis can experience fever, a **spiking fever** is less common than in other inflammatory conditions or infections. - Fever is a more common and prominent symptom in **Crohn's disease**, particularly with perianal complications or abscesses. *Fistula formation* - **Fistulas** (abnormal connections between organs or to the skin) are a characteristic complication of **Crohn's disease**, not ulcerative colitis. - Ulcerative colitis affects only the **mucosa** and submucosa, making transmural inflammation and fistula formation rare [1]. *Cobble stone mucosa* - **Cobblestone mucosa**, characterized by linear ulcers interspersed with edematous, normal-appearing mucosa, is a classic endoscopic finding in **Crohn's disease**. - In contrast, ulcerative colitis presents with **diffuse, continuous inflammation** and ulceration without skip lesions or cobblestoning [1].

Q: The commonest cause of significant lower gastrointestinal bleeding in a middle-aged person with an unknown reason is?

Sigmoid diverticula. ### Sigmoid diverticula - **Diverticulosis** is highly prevalent in middle-aged and older adults, and **diverticular bleeding** is the most common cause of significant lower GI bleeding in this demographic [1]. - Bleeding typically results from rupture of the **vasa recta** overlying a diverticulum and is often **painless** and profuse [1]. ### Angiodysplasia - While it is a common cause of lower GI bleeding, particularly in older individuals with **aortic stenosis** or **renal failure**, it is generally less common than diverticular bleeding as the overall *commonest* cause in a middle-aged person [1]. - Bleeding from angiodysplasia is often **slow and chronic**, leading to iron deficiency anemia, though it can present as acute bleeding [1]. ### Ischemic colitis - Occurs due to temporary reduction in blood flow to a segment of the colon, commonly presenting with **abdominal pain**, **tenderness**, and **bloody diarrhea** [2]. - While it causes bleeding, it is typically accompanied by significant pain and is not usually the *commonest* cause of acute, significant, and otherwise unexplained lower GI bleeding [2]. ### Ulcerative colitis - A form of **inflammatory bowel disease** characterized by diffuse inflammation and ulceration of the colonic mucosa, typically presenting with **bloody diarrhea**, **abdominal cramps**, and **tenesmus**. - While it causes significant lower GI bleeding, it usually has other prominent symptoms and is less common than diverticular disease in the general middle-aged population presenting with unexplained bleeding.

Q: Which of the following conditions most commonly causes odynophagia?

Monilial esophagitis. ***Monilial esophagitis*** - **Monilial esophagitis**, caused by *Candida albicans*, is a common opportunistic infection, especially in **immunocompromised individuals**, and often causes severe odynophagia. - The inflammatory exudates and **pseudomembranes** formed by *Candida* directly irritate the esophageal mucosa, leading to significant pain during swallowing. *Achalasia* - Achalasia is a primary esophageal motility disorder characterized by **incomplete relaxation of the lower esophageal sphincter** and loss of esophageal peristalsis [1]. - Its main symptoms are **dysphagia** (difficulty swallowing) and regurgitation, but **odynophagia** (painful swallowing) is not a common or prominent feature [1]. *Herpes esophagitis* - Herpes esophagitis, caused by the **Herpes simplex virus (HSV)**, typically presents with **discrete, shallow ulcers** on the esophageal mucosa. - While it can cause odynophagia, it is generally less common than monilial esophagitis and often associated with more scattered lesions rather than widespread inflammation. *Barrett's esophagus* - Barrett's esophagus is a metaplastic change in the esophageal lining, where **squamous epithelium is replaced by columnar epithelium** due to chronic acid reflux. - It is often **asymptomatic** or presents with symptoms of **GERD** (heartburn, regurgitation), but **odynophagia** is not a typical or common symptom associated with the condition itself.

Question 1

Which of the following is not included in the Child-Turcotte-Pugh scoring system?

Accepted Answer

ALT

Answer

Encephalopathy

Answer

Albumin

Answer

Ascites

Question 2

The most common cause of death in peptic ulcer patients is:

Accepted Answer

Hemorrhage

Answer

Pyloric stenosis

Answer

Perforation

Answer

Malignancy

Question 3

A 60-year-old male presents with progressive difficulty in swallowing, vomiting, and occasional regurgitation for the past three months. Barium studies show marked dilatation of the upper esophagus with narrowing of the lower segment. Manometry shows absent esophageal peristalsis. Which of the following conditions is he most likely at risk of developing?

Accepted Answer

Squamous cell carcinoma of the esophagus

Answer

Mallory-Weiss syndrome

Answer

Peptic ulcer disease

Answer

Rupture of esophageal varices

Question 4

A 25-year-old woman presents with bloody diarrhea and is diagnosed with ulcerative colitis. Which of the following conditions is least likely to be associated with it?

Accepted Answer

Pancreatitis

Answer

Iritis

Answer

Ankylosing spondylitis

Answer

Sclerosing cholangitis

Question 5

Monu, a 30-year-old male with a history of chronic alcoholism, presents with sudden onset of epigastric pain that radiates to the back. All are seen except:

Accepted Answer

Low serum lipase

Answer

Hypocalcaemia

Answer

Increased serum amylase

Answer

Increased LDH

Question 6

What does the MELD diagnostic score predict in patients awaiting liver transplantation?

Accepted Answer

Predicts mortality in patients waiting for liver transplant

Answer

Higher score - less mortality risk

Answer

Predicts mortality risk for a 60 day period

Answer

It is a 4 to 60 scale

Question 7

A 43-year-old patient presents to the emergency department with chest pain, has a history of chronic alcoholism, and had an episode of vomiting with bright red blood. Endoscopy reveals a partial-thickness tear in the distal oesophagus. What is the diagnosis?

Accepted Answer

Mallory-Weiss tears

Answer

None of the options

Answer

Boerhaave syndrome

Answer

Alcoholic liver disease

Question 8

Which of the following is a feature of ulcerative colitis?

Accepted Answer

Proctitis

Answer

Spiking fever

Answer

Fistula formation

Answer

Cobble stone mucosa

Question 9

The commonest cause of significant lower gastrointestinal bleeding in a middle-aged person with an unknown reason is?

Accepted Answer

Sigmoid diverticula

Answer

Angiodysplasia

Answer

Ischemic colitis

Answer

Ulcerative colitis

Question 10

Which of the following conditions most commonly causes odynophagia?

Accepted Answer

Monilial esophagitis

Answer

Herpes esophagitis

Answer

Achalasia

Answer

Barrett's esophagus

Gastroenterology — MCQs

Gastroenterology — MCQs

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