Gastroenterology Practice Questions

Q: Which virus is typically associated with serpiginous ulcers in the distal esophagus?

CMV. CMV - Serpiginous ulcers in the distal esophagus are indicative of **cytomegalovirus (CMV) esophagitis**, especially in immunocompromised patients. - CMV infection can lead to **ulcerative lesions** that have a characteristic serpentine appearance, differentiating it from other causes. *Pill* - Pill-induced esophagitis generally results in **localized ulcers** rather than serpiginous ones and is often associated with the use of certain medications. - Symptoms typically include **dysphagia** and **odynophagia**, without the characteristic serpentine ulcer morphology. *Corrosive* - Corrosive injuries from chemicals present as **burn-like lesions** and strictures rather than serpiginous ulcers; the morphology is quite distinct. - These injuries usually occur due to ingestion of strong acids or alkalis, leading to **necrosis**, and don't show typical serpiginous ulceration. *Herpes* - Herpes simplex virus usually causes **multiple shallow ulcers** rather than deep, serpiginous ulcers, and is more commonly observed in the form of **vesicular lesions**. - Typically it presents with fever and significant **pain**, which is not the primary characteristic of CMV esophagitis.

Q: A 42-year-old patient with obstructive jaundice. Alp, Ggt, haptoglobin all increased. The most likely cause is:

Biliary obstruction. ***Alcohol*** - Chronic **alcohol consumption** leads to hepatic injury, causing cholestasis and increased levels of **Alkaline Phosphatase (ALP)** and **Gamma-glutamyl transferase (GGT)** [1, 2]. - Increased **haptoglobin** indicates hemolysis or hepatic dysfunction, commonly seen in alcohol-related liver disease [1]. *Lead* - Lead poisoning typically causes **anemia** and affects **erythropoiesis**, but does not generally increase ALP and GGT levels significantly. - The classic presentation involves **neurological** deficits and **peripheral neuropathy**, rather than obstructive jaundice. *Chronic rf* - Chronic renal failure primarily affects **uremia** and renal function tests, with minimal impact on liver function tests like ALP and GGT. - It is not directly associated with **increased haptoglobin**, which is usually elevated in liver disease. *None of the above* - This option implies that none of the listed causes could lead to the observed lab changes, which is incorrect as **alcohol** is a known cause [1, 2]. - Enhancing liver damage from substances other than alcohol is not applicable based on the information given.

Q: Which of the following laboratory values is NOT a component of the MELD score?

Albumin. ***Albumin*** - **Albumin** is a component of the Child-Pugh score, which is also used to assess liver function, but it is **not included in the MELD score**. [2] - The MELD score specifically focuses on **renal function** (creatinine) and **liver synthesis/excretory function** (bilirubin and INR). [1] *Serum bilirubin* - **Serum bilirubin** is a key indicator of the liver's ability to excrete bile and is a **direct component** of the MELD score. [1], [2] - Higher bilirubin levels generally indicate **worse hepatocellular function** and are associated with a higher MELD score. *Serum creatinine* - **Serum creatinine** is a measure of **renal function** and is an important component of the MELD score. [1] - It reflects the severity of **hepatorenal syndrome** and the overall prognosis in patients with liver disease. [1] *International normalized ratio (INR)* - The **International Normalized Ratio (INR)** assesses the liver's synthetic function, specifically its ability to produce **clotting factors**. [2] - A higher INR indicates **impaired coagulation** due to liver dysfunction and is a direct component of the MELD score. [1]

Q: A patient with a history of chronic liver disease presents with abdominal distension, jaundice, and pruritis. Ascitic fluid analysis revealed a neutrophil count >650 per cubic mm. What is the most likely diagnosis?

Spontaneous bacterial peritonitis. ***Spontaneous bacterial peritonitis*** - The combination of **chronic liver disease**, **ascites**, and a significantly elevated ascitic fluid **neutrophil count (>250 cells/mm³ is diagnostic)**, in this case, >650 cells/mm³, is highly indicative of spontaneous bacterial peritonitis (SBP). - SBP is a common and serious complication in patients with **cirrhosis** and ascites, characterized by bacterial infection of ascitic fluid without an obvious source. *Malignant ascites* - While malignant ascites can occur in chronic liver disease (e.g., from hepatocellular carcinoma), the ascitic fluid analysis would typically show **cytology positive for malignant cells** and often a **low neutrophil count** unless secondarily infected. - The primary differentiator here is the very high neutrophil count suggesting an acute inflammatory/infectious process. *Tubercular ascites* - Tubercular ascites might present with ascites and abdominal distension, but the ascitic fluid analysis usually shows a **lymphocytic predominance** (high lymphocyte count) rather than a high neutrophil count. - Diagnosis typically involves **adenosine deaminase (ADA) levels**, acid-fast bacilli smear, or culture of ascitic fluid. *Intestinal obstruction* - Intestinal obstruction primarily causes **abdominal pain, distension, nausea, vomiting**, and constipation, with a clinical picture distinct from SBP. - While it can lead to ascites in rare cases (e.g., from bowel ischemia or perforation), the ascitic fluid would not characteristically show such a high neutrophil count unless there was associated perforation and peritonitis.

Q: Which of the following statements is incorrect regarding King's Criteria for acute fulminant liver failure?

Jaundice 7 days** as a poor prognostic factor. - A short duration of jaundice ( 40 years* - This is a **correct** statement of King's Criteria, as **age less than 10 or greater than 40 years** are considered poor prognostic indicators. - These age groups are associated with a higher risk of adverse outcomes in acute liver failure. *INR >3.5* - This is a **correct** component of King's Criteria, indicating **severe coagulopathy** and poor liver synthetic function. - An **INR greater than 3.5** is a key predictor of non-survival without transplantation in non-acetaminophen-induced acute liver failure. *Serum bilirubin >17.5 mg/dl* - This is a **correct** criterion, as a **serum bilirubin level exceeding 17.5 mg/dl** is a significant marker for poor prognosis. - High bilirubin levels reflect severe hepatocellular dysfunction and impaired metabolic capacity of the liver.

Q: A 35-year-old male presents with recurrent episodes of abdominal pain, jaundice, and fatigue and underwent MRCP. What will be the most likely diagnosis?

Primary sclerosing cholangitis. **Primary sclerosing cholangitis** - **MRCP (Magnetic Resonance Cholangiopancreatography)** in primary sclerosing cholangitis (PSC) typically shows characteristic **"beading"** and **strictures** of the biliary tree due to inflammation and fibrosis. - The combination of **recurrent abdominal pain**, **jaundice**, and **fatigue** in a relatively young male strongly suggests PSC, especially given its association with inflammatory bowel disease, which is common in this demographic [1]. *Primary biliary cirrhosis* - This condition primarily affects **small intrahepatic bile ducts** and is more common in **middle-aged women** [1]. - While it causes fatigue and jaundice, the classic MRCP findings of PSC (beading and strictures) are not typically seen, and it's associated with **anti-mitochondrial antibodies (AMA)** [1]. *Caroli’s disease* - This is a rare congenital disorder characterized by **segmental cystic dilatation of the intrahepatic bile ducts** [1]. - MRCP would show these **cystic dilations** rather than the diffuse strictures and beading seen in PSC. *Recurrent pyogenic cholangitis* - Also known as oriental cholangiohepatitis, it is characterized by recurrent episodes of **cholangitis** and **intrahepatic gallstones**, mostly seen in Asian populations. - While it presents with recurrent abdominal pain and jaundice, MRCP would show **intrahepatic calculi** and **dilated bile ducts**, not the stricturing pattern of PSC.

Q: Which statement is true regarding Crohn's disease?

Crohn's disease typically presents with skip lesions.. ***Continuous lesion visualized in endoscopy*** - Crohn's disease typically presents with **discontinuous lesions**, also known as **skip lesions**, which are not found in continuous patterns [1]. - This statement fails to align with the characteristic **cobblestone mucosa** appearance of the disease seen during endoscopy. *Rectum is not involved* - While Crohn's disease primarily affects the **ileum** and **colon**, it can indeed involve the **rectum**, although it is more common in ulcerative colitis [1]. - Hence, rectal involvement is possible in Crohn's, opposing this statement. *Non caseating granulomas* - Crohn's disease is known for the presence of **non-caseating granulomas**, which are a pathological hallmark of the condition. - This statement incorrectly describes a feature that is, in fact, true for Crohn's. *Cobblestone appearance* - The characteristic **cobblestone appearance** is typical in Crohn's disease due to the patchy involvement of the intestinal mucosa. - This statement is also true, as it accurately describes a prominent finding in Crohn's disease.

Q: Common cause of chronic pancreatitis

Chronic alcohol. ***Chronic alcohol*** - **Chronic alcohol consumption** is the most common and well-established cause of chronic pancreatitis, accounting for a significant majority of cases [1]. - Alcohol induces premature activation of pancreatic enzymes within the acinar cells, leading to recurrent inflammation, fibrosis, and eventual pancreatic destruction [1]. *Chronic pancreatic calculi* - While **pancreatic calcifications** (calculi) are a common finding in chronic pancreatitis, they are typically a *consequence* of the disease process rather than its primary cause [1]. - These calculi often develop due to protein plug formation and subsequent calcification in the ducts, exacerbated by recurrent inflammation [1]. *pancreas divisum* - **Pancreas divisum** is a congenital anomaly where the dorsal and ventral pancreatic ducts fail to fuse, leading to the majority of pancreatic secretions draining through a smaller accessory papilla. - While it can be a rare cause of recurrent acute pancreatitis or, less commonly, chronic pancreatitis, it is far less frequent than chronic alcohol abuse. *Gall bladder stones* - **Gallbladder stones (cholelithiasis)** are a common cause of *acute pancreatitis* when they obstruct the common bile duct or pancreatic duct. - They are generally not a direct cause of *chronic* pancreatitis unless recurrent acute episodes lead to irreversible pancreatic damage, making alcohol the leading primary cause [1].

Question 1

Which virus is typically associated with serpiginous ulcers in the distal esophagus?

Accepted Answer

CMV

Answer

Herpes

Answer

Pill

Answer

Corrosive

Question 2

The differentiating feature between IBS and organic GI disease is:

Accepted Answer

Presence of inflammation indicated by elevated stool calprotectin

Answer

Pain abdomen

Answer

Mucus in stools

Answer

Diarrhea

Question 3

A 42-year-old patient with obstructive jaundice. Alp, Ggt, haptoglobin all increased. The most likely cause is:

Accepted Answer

Biliary obstruction

Answer

Alcohol

Answer

Lead

Answer

None of the options

Question 4

Which of the following statements about nutcracker esophagus is correct?

Accepted Answer

Nutcracker esophagus is characterized by extremely forceful peristaltic activity, leading to episodes of chest pain and dysphagia.

Answer

There are no effective medical treatments available for nutcracker esophagus.

Answer

Nutcracker esophagus is a type of esophageal malignancy.

Answer

Nutcracker esophagus does not cause any symptoms.

Question 5

Which of the following laboratory values is NOT a component of the MELD score?

Accepted Answer

Albumin

Answer

Serum creatinine

Answer

Serum bilirubin

Answer

International normalized ratio (INR)

Question 6

A patient with a history of chronic liver disease presents with abdominal distension, jaundice,    and pruritis. Ascitic fluid analysis revealed a neutrophil count >650 per cubic mm. What is the    most likely diagnosis?

Accepted Answer

Spontaneous bacterial peritonitis

Answer

Malignant ascites

Answer

Tubercular ascites

Answer

Intestinal obstruction

Question 7

Which of the following statements is incorrect regarding King's Criteria for acute fulminant liver failure?

Accepted Answer

Jaundice <7 days

Answer

Age <10 years or >40 years

Answer

INR >3.5

Answer

Serum bilirubin >17.5 mg/dl

Question 8

A 35-year-old male presents with recurrent episodes of abdominal pain, jaundice, and fatigue and underwent MRCP. What will be the most likely diagnosis?

Accepted Answer

Primary sclerosing cholangitis

Answer

Primary biliary cirrhosis

Answer

Caroli’s disease

Answer

Recurrent pyogenic cholangitis

Question 9

Which statement is true regarding Crohn's disease?

Accepted Answer

Crohn's disease typically presents with skip lesions.

Answer

Rectum is not involved

Answer

Cobblestone appearance is a classic endoscopic finding.

Answer

Caseating granulomas are a characteristic histological feature.

Question 10

Common cause of chronic pancreatitis

Accepted Answer

Chronic alcohol

Answer

Chronic pancreatic calculi

Answer

pancreas divisum

Answer

Gall bladder stones

Gastroenterology — MCQs

Gastroenterology — MCQs

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