Gastroenterology Practice Questions

Q: A patient presents with painless jaundice and a palpable gallbladder. What is the most likely diagnosis?

Pancreatic cancer. ***Pancreatic cancer*** - The combination of **painless jaundice** and a **palpable gallbladder** (Courvoisier's sign) is highly suggestive of an obstruction of the common bile duct, most commonly due to pancreatic head cancer. - The tumor in the head of the pancreas compresses the common bile duct, leading to bile back-up and distension of the gallbladder, which is often palpable and non-tender due to the slow, progressive nature of the obstruction. *Cholecystitis* - Cholecystitis typically presents with **painful right upper quadrant abdominal pain**, fever, and nausea, usually due to gallstone obstruction of the cystic duct. - While jaundice can occur if a stone migrates to the common bile duct, the prominent feature of **pain** and the common absence of a palpable, non-tender gallbladder differentiate it. *PSC* - **Primary sclerosing cholangitis (PSC)** is a chronic cholestatic liver disease characterized by progressive inflammation and fibrosis of the bile ducts, which can cause jaundice. - PSC typically doesn't present with a **palpable gallbladder**; it's often associated with inflammatory bowel disease and can lead to cholangitis or cholangiocarcinoma. *Hepatitis* - **Hepatitis** causes jaundice due to hepatocyte dysfunction and inflammation, leading to impaired bilirubin conjugation and excretion. - It usually presents with symptoms like fatigue, nausea, and dark urine, but it does **not typically cause a palpable gallbladder** because it's a hepatocellular rather than an obstructive process.

Q: A patient with chronic liver disease presents with confusion and asterixis. Ammonia levels are elevated. Diagnosis?

Hepatic encephalopathy. ***Hepatic encephalopathy*** - **Confusion**, **asterixis**, and elevated **ammonia levels** in a patient with chronic liver disease are classic signs of hepatic encephalopathy [1]. - The liver's inability to metabolize toxins, particularly ammonia, leads to their accumulation in the brain, causing neurological dysfunction [1]. *Subdural hematoma* - While it can cause confusion, it typically presents after a **head injury** and is not directly linked to elevated ammonia levels or chronic liver disease. - Would likely be accompanied by focal neurological deficits or signs of increased intracranial pressure. *Wernicke's encephalopathy* - Characterized by the triad of **oculomotor dysfunction**, **ataxia**, and **confusion**, usually due to thiamine deficiency in chronic alcoholics [2]. - It is not directly associated with elevated ammonia levels as a primary cause. *Alcohol withdrawal* - Symptoms range from tremors and anxiety to seizures and delirium tremens, often with **autonomic hyperactivity**. - While common in patients with liver disease, elevated ammonia is not the primary diagnostic marker, and asterixis is not a hallmark symptom.

Q: All of the following are complications of cirrhosis, EXCEPT:

Hypercalcemia. ***Hypercalcemia*** - While liver disease can lead to **metabolic derangements**, severe hypercalcemia is not a direct or typical complication of **cirrhosis** itself. - Causes of hypercalcemia are usually related to **parathyroid dysfunction**, **malignancy**, or specific drug effects. *Spontaneous bacterial peritonitis* - This is a common and serious infection of the **ascitic fluid** that occurs in patients with cirrhosis, often without an obvious source of infection. - It is a direct consequence of impaired immune function and bacterial translocation in **advanced liver disease**. *Portal hypertension* - This condition is a hallmark of cirrhosis, resulting from increased resistance to blood flow through the fibrotic liver [1]. - It leads to many other complications such as **ascites**, **esophageal varices**, and **splenomegaly** [1]. *Hepatic encephalopathy* - This is a neuropsychiatric syndrome caused by the accumulation of toxins normally cleared by the liver, such as **ammonia**, in the systemic circulation [1]. - It is a significant complication of **cirrhosis** and often indicates advanced liver failure [1].

Q: A patient presents with hematemesis and is diagnosed with esophageal varices. What is the first line of treatment?

Endoscopic banding. ***Endoscopic banding*** - **Endoscopic variceal ligation (EVL)**, or banding, is the **first-line treatment** for acute variceal bleeding [1]. - It involves placing elastic bands over the varices to **occlude blood flow** and prevent further hemorrhage [1]. *Surgery* - **Surgical shunting procedures** or **liver transplantation** are generally reserved for patients who fail endoscopic and pharmacologic therapies [1]. - These are **invasive options** with significant risks and are not considered first-line for acute bleeding. *Steroid therapy* - **Steroids** are typically used as **anti-inflammatory agents** and are not indicated for controlling bleeding from esophageal varices. - Their use would have **no direct impact** on stopping the hemorrhage. *Proton pump inhibitors* - **Proton pump inhibitors (PPIs)** are used to **reduce gastric acid production**, which is beneficial in conditions like peptic ulcer disease or reflux esophagitis [2]. - They are **not effective** in treating or preventing bleeding from esophageal varices, as the bleeding source is venous [2].

Q: Which of the following is NOT a recommended management strategy for acute pancreatitis?

Prolonged withholding of oral intake. ***Prolonged withholding of oral intake*** - Historically, prolonged fasting was common for **pancreatic rest**, but current evidence supports early refeeding. - **Early refeeding** (within 24-72 hours) is now recommended as it can prevent complications like gut atrophy and bacterial translocation. *Antibiotics are required only in cases of infected necrosis.* - Prophylactic antibiotics are **not recommended** in acute pancreatitis due to lack of benefit and potential to increase multi-drug resistant infections. - Antibiotics should be reserved for cases of **proven or suspected infected pancreatic necrosis**, indicated by gas on CT or positive culture from fine-needle aspiration [1]. *IV fluids are essential* - **Aggressive intravenous fluid resuscitation** is crucial, especially in the early stages, to maintain pancreatic and organ perfusion and prevent systemic complications [2]. - Initial boluses followed by continuous infusion, targeting markers like heart rate and urine output, are standard to correct **hypovolemia**. *Early enteral feeding is preferred* - **Early enteral nutrition** (usually via nasojejunal tube if oral feeding is not tolerated) is preferred over parenteral nutrition. - This helps maintain gut integrity, prevents bacterial translocation, and is associated with **fewer complications** like infection and overall shorter hospital stay.

Q: A 40-year-old presents with cirrhosis and low ferritin. What is the next step in management?

Iron supplements. ***Iron supplements*** - A patient with **cirrhosis** and **low ferritin** suggests **iron deficiency anemia**, which should be treated with iron supplementation. - Iron deficiency in cirrhosis can be due to **gastrointestinal bleeding** (e.g., from varices or portal gastropathy) [3] or **malabsorption** [2]. *Transfusion* - **Transfusion** is typically reserved for cases of **severe, symptomatic anemia** or acute significant bleeding. - In this scenario, managing the underlying iron deficiency with supplements is the initial and appropriate step. *Liver biopsy* - A **liver biopsy** is primarily used for **diagnostic purposes** to determine the cause or severity of liver disease [4]. - It is not indicated as the next step for managing **iron deficiency** in an established case of cirrhosis unless a new or unknown liver pathology is suspected [4]. *Phlebotomy* - **Phlebotomy** is a treatment for **iron overload conditions**, such as hemochromatosis, where ferritin levels would be high, not low [1]. - Using phlebotomy in a patient with low ferritin and cirrhosis would worsen their **anemia** and is contraindicated.

Q: Which of the following is the MOST common risk factor for hepatocellular carcinoma worldwide?

HBV. HBV - **Hepatitis B virus (HBV)** infection is the leading cause of **hepatocellular carcinoma (HCC)** globally, especially in regions with high endemicity like Southeast Asia and sub-Saharan Africa. - Chronic HBV infection leads to persistent **inflammation and fibrosis** in the liver, increasing the risk of malignant transformation. HCV - **Hepatitis C virus (HCV)** is a significant risk factor for HCC, particularly in Western countries. - While a major cause of chronic liver disease, its overall global prevalence as a cause of HCC is slightly lower than HBV. Alcohol - **Chronic alcohol consumption** can lead to alcoholic liver disease, cirrhosis, and subsequently increase the risk of HCC. - However, worldwide, chronic viral hepatitis (HBV and HCV) accounts for a larger proportion of HCC cases compared to alcohol-related liver disease. Aflatoxin exposure - **Aflatoxins**, particularly **aflatoxin B1**, are potent liver carcinogens produced by certain fungi (e.g., *Aspergillus flavus*) that contaminate food crops. - While significant in some regions, especially when combined with HBV infection, its global impact as a sole risk factor for HCC is less widespread compared to viral hepatitis.

Q: A 40-year-old woman presents with pruritus, jaundice, and hepatomegaly. Labs show elevated ALP and antimitochondrial antibodies. What is the likely diagnosis?

Primary biliary cholangitis. ***Primary biliary cholangitis*** - The classic presentation includes **pruritus**, **jaundice**, and **hepatomegaly** in a middle-aged woman [1], combined with **elevated alkaline phosphatase (ALP)** and **positive antimitochondrial antibodies (AMA)**. - AMA are highly specific for PBC, and the elevated ALP indicates **cholestasis**, consistent with bile duct destruction [1]. *Hemochromatosis* - This condition involves **iron overload**, leading to symptoms like fatigue, joint pain, and skin bronzing, not typically pruritus and jaundice initially. - Diagnosis is based on **elevated ferritin**, **transferrin saturation**, and **genetic testing for HFE mutations** [2], not AMA. *Alcoholic hepatitis* - Characterized by a history of **heavy alcohol consumption**, with symptoms like fever, jaundice, and RUQ pain. - Lab findings usually show **elevated AST and ALT** (AST:ALT ratio > 2:1), and possibly elevated GGT, but not specific AMA. *Viral hepatitis* - Acute viral hepatitis often presents with fatigue, nausea, vomiting, and jaundice, preceded by a flu-like illness. - The diagnosis is confirmed by detecting **viral antigens or antibodies** (e.g., HBsAg, anti-HCV) [2], and AMA are not characteristic.

Q: Which of the following is the MOST common complication associated with GERD?

Esophagitis. ***Esophagitis*** - **Reflux of gastric acid** into the esophagus directly irritates the esophageal lining, leading to inflammation and cellular damage, commonly presenting as esophagitis [1]. - This recurrent irritation causes histological changes such as **basal cell hyperplasia** and **elongation of papillae**, which are hallmarks of reflux-induced injury [1]. *Chronic cough* - While chronic cough can be a symptom of GERD, it is considered an **extraesophageal manifestation** rather than a direct complication of esophageal mucosal damage. - Its prevalence is lower than esophagitis among GERD complications and it's less direct consequence of acid exposure to the esophagus itself. *Dental erosion* - **Acid reflux** can lead to dental erosion due to the direct contact of acidic gastric contents with tooth enamel. - However, this is less common than esophagitis, which is a direct and frequent consequence of **mucosal acid exposure** within the esophagus [1].

Q: A 20-year-old chronic alcoholic presents with severe hematemesis. USG shows distension of portal vein and the liver appears hyperechoic. Pantoprazole has been initiated. What is the next step in management?

Perform an endoscopy to identify and treat varices. **Perform an endoscopy to identify and treat varices** - Severe **hematemesis** in a chronic alcoholic with signs of **portal hypertension** (distended portal vein, hyperechoic liver) strongly suggests bleeding esophageal varices [1]. - **Endoscopy** is crucial for both diagnosing the source of bleeding and providing immediate therapeutic intervention, such as **variceal band ligation** or **sclerotherapy** [1]. *Administer IV fluids and electrolytes to stabilize hemodynamics* - While **hemodynamic stabilization with IV fluids** is an immediate and critical step in managing severe GI bleeding, it is not the *next step in definitive management* after pantoprazole initiation, which aims to address the *cause* of the bleeding. - This is an initial supportive measure, but addressing the source of hemorrhage is paramount once stabilization begins [1]. *Order a liver biopsy to assess for fibrosis* - A **liver biopsy** is primarily used for diagnosing the underlying cause and severity of liver disease, such as **cirrhosis** and **fibrosis**. - It is not an urgent procedure in the context of acute, severe hematemesis and would delay critical interventions to stop the bleeding. *Initiate a course of broad-spectrum antibiotics* - **Antibiotics** are indeed utilized in patients with cirrhosis and upper GI bleeding to prevent **spontaneous bacterial peritonitis** and other infections, often administered *after* hemodynamic stabilization and initial endoscopic management. - However, stopping the active bleeding is the immediate priority before initiating prophylactic antibiotics.

Question 1

A patient presents with painless jaundice and a palpable gallbladder. What is the most likely diagnosis?

Accepted Answer

Pancreatic cancer

Answer

Cholecystitis

Answer

PSC

Answer

Hepatitis

Question 2

A patient with chronic liver disease presents with confusion and asterixis. Ammonia levels are elevated. Diagnosis?

Accepted Answer

Hepatic encephalopathy

Answer

Subdural hematoma

Answer

Wernicke's encephalopathy

Answer

Alcohol withdrawal

Question 3

All of the following are complications of cirrhosis, EXCEPT:

Accepted Answer

Hypercalcemia

Answer

Spontaneous bacterial peritonitis

Answer

Portal hypertension

Answer

Hepatic encephalopathy

Question 4

A patient presents with hematemesis and is diagnosed with esophageal varices. What is the first line of treatment?

Accepted Answer

Endoscopic banding

Answer

Surgery

Answer

Steroid therapy

Answer

Proton pump inhibitors

Question 5

Which of the following is NOT a recommended management strategy for acute pancreatitis?

Accepted Answer

Prolonged withholding of oral intake

Answer

Antibiotics are required only in cases of infected necrosis.

Answer

IV fluids are essential

Answer

Early enteral feeding is preferred

Question 6

A 40-year-old presents with cirrhosis and low ferritin. What is the next step in management?

Accepted Answer

Iron supplements

Answer

Transfusion

Answer

Liver biopsy

Answer

Phlebotomy

Question 7

Which of the following is the MOST common risk factor for hepatocellular carcinoma worldwide?

Accepted Answer

HBV

Answer

HCV

Answer

Alcohol

Answer

Aflatoxin exposure

Question 8

A 40-year-old woman presents with pruritus, jaundice, and hepatomegaly. Labs show elevated ALP and antimitochondrial antibodies. What is the likely diagnosis?

Accepted Answer

Primary biliary cholangitis

Answer

Hemochromatosis

Answer

Alcoholic hepatitis

Answer

Viral hepatitis

Question 9

Which of the following is the MOST common complication associated with GERD?

Accepted Answer

Esophagitis

Answer

Chronic cough

Answer

Dental erosion

Answer

None of the options

Question 10

A 20-year-old chronic alcoholic presents with severe hematemesis. USG shows distension of portal vein and the liver appears hyperechoic. Pantoprazole has been initiated. What is the next step in management?

Accepted Answer

Perform an endoscopy to identify and treat varices

Answer

Administer IV fluids and electrolytes to stabilize hemodynamics

Answer

Order a liver biopsy to assess for fibrosis

Answer

Initiate a course of broad-spectrum antibiotics

Gastroenterology — MCQs

Gastroenterology — MCQs

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