Gastroenterology Practice Questions

Q: Which of the following statements regarding Inflammatory Bowel Disease are true and which are false? 1. Mucosal granularity is the earliest finding seen in ulcerative colitis. 2. Coomb sign is seen in UC. 3. Lead pipe colon is seen in UC. 4. Fibrosis and strictures are more common in UC. 5. Apthous ulcers are the earliest finding seen in CD.

1. True, 2. False, 3. True, 4. False, 5. True. This question tests the ability to differentiate between the clinical and radiological features of **Ulcerative Colitis (UC)** and **Crohn’s Disease (CD)**, a high-yield topic for NEET-PG [1]. ### **Analysis of Statements:** 1. **Mucosal Granularity (True):** In UC, the inflammation is limited to the mucosa and submucosa [1]. The earliest endoscopic sign is the loss of the normal vascular pattern and the appearance of a fine, sandpaper-like **granularity**. 2. **Comb Sign (False):** The "Comb Sign" refers to the engorgement of the vasa recta (mesenteric vessels), which is a characteristic radiological finding of **Crohn’s Disease**, not UC. It indicates active, transmural inflammation. 3. **Lead Pipe Colon (True):** Chronic UC leads to the loss of haustral folds, shortening of the colon, and mucosal thickening [1], resulting in a smooth, featureless appearance on barium enema known as the **"Lead Pipe"** appearance. 4. **Fibrosis and Strictures (False):** These are hallmarks of **Crohn’s Disease** because the inflammation is **transmural** (full-thickness) [1]. UC is superficial; therefore, significant fibrosis and strictures are rare (if a stricture is found in UC, one must rule out malignancy). 5. **Aphthous Ulcers (True):** Small, superficial "punched-out" ulcers (aphthous ulcers) are the **earliest endoscopic sign** of Crohn’s Disease, often appearing against a background of normal-looking mucosa (skip lesions). ### **High-Yield Clinical Pearls for NEET-PG:** * **UC:** Always involves the rectum (proctitis); continuous lesions; "Backwash ileitis" can occur; increased risk of Primary Sclerosing Cholangitis (PSC) [1]. * **CD:** Rectal sparing; transmural inflammation; "Cobblestone" appearance; "String sign of Kantor" (terminal ileum stricture); non-caseating granulomas are pathognomonic [1]. * **Serology:** p-ANCA is associated with UC; ASCA is associated with CD.

Q: The Rockall score is used in the prognosis of which of the following conditions?

Upper gastrointestinal bleed. The **Rockall Score** is a clinical scoring system used to predict the risk of rebleeding and mortality in patients with **acute upper gastrointestinal bleeding (UGIB)**. It is a high-yield topic for NEET-PG as it helps clinicians decide which patients require urgent intervention versus those who can be managed as outpatients. ### **Explanation of Options** * **A. Upper Gastrointestinal Bleed (Correct):** The Rockall score incorporates both clinical criteria (age, shock/hemodynamics, comorbidities) and endoscopic findings (diagnosis, stigmata of recent hemorrhage). A score 8 indicates a high risk of mortality. * **B. Lower Gastrointestinal Bleed:** While risk scores exist for LGIB (e.g., Oakland score), the Rockall score is specific to UGIB, particularly peptic ulcer disease and variceal bleeds. * **C. Hepatic Encephalopathy:** This is assessed using the **West Haven Criteria** (clinical grading) or the **Child-Pugh/MELD scores** (for overall liver prognosis). * **D. Inflammatory Bowel Disease:** Disease activity in IBD is measured using scores like the **Mayo Score** (Ulcerative Colitis) or the **Crohn’s Disease Activity Index (CDAI)**. ### **Clinical Pearls for NEET-PG** 1. **Pre-endoscopic vs. Full Rockall:** The "Clinical Rockall Score" uses only age and vitals before endoscopy; the "Full Rockall Score" is calculated after the procedure. 2. **Glasgow-Blatchford Score (GBS):** This is another vital score for UGIB. Unlike the Rockall score, the GBS is used **initially** (pre-endoscopy) to identify "low-risk" patients who do not need hospital admission. 3. **Forrest Classification:** Used during endoscopy to grade the risk of rebleeding in peptic ulcers (e.g., Class Ia is a spurting hemorrhage).

Q: Low serum cobalamin and elevated serum folate levels are seen in?

Bacterial overgrowth syndrome. **Explanation:** The correct answer is **Bacterial Overgrowth Syndrome** (Small Intestinal Bacterial Overgrowth - SIBO). **Pathophysiology:** In SIBO, there is an excessive proliferation of colonic-type bacteria within the small intestine [1]. These bacteria compete with the host for nutrients, leading to a classic biochemical profile: 1. **Low Vitamin B12 (Cobalamin):** The bacteria (especially anaerobes) utilize and "consume" dietary B12 for their own metabolism, making it unavailable for absorption in the terminal ileum. 2. **Elevated Serum Folate:** Many enteric bacteria synthesize folate as a metabolic byproduct. This excess folate is absorbed in the proximal small intestine, leading to supranormal serum levels. **Analysis of Incorrect Options:** * **Celiac Sprue:** This is a malabsorption syndrome affecting the mucosa. It typically leads to **low** levels of both B12 and folate (along with iron) due to generalized villous atrophy and impaired absorption [2]. * **Acute/Chronic Myeloid Leukemia (AML/CML):** Myeloproliferative disorders are associated with **elevated** serum B12 levels. This occurs because of an increase in Transcobalamin I and III (haptocorrin), which are secreted by the expanded pool of granulocytes. **NEET-PG High-Yield Pearls:** * **Gold Standard Diagnosis for SIBO:** Jejunal aspirate culture showing >10⁵ CFU/mL (though non-invasive **Carbohydrate Breath Tests** using Glucose or Lactulose are more commonly used in clinical practice) [primary reference: 1]. * **Treatment of choice:** Rifaximin (a non-absorbable antibiotic). * **Blind Loop Syndrome:** A classic anatomical cause of SIBO (e.g., post-Billroth II surgery) where stasis allows bacterial proliferation [1]. * **Mnemonic:** In SIBO, bacteria **"Eat the B12, but Make the Folate."**

Q: A 35-year-old male presented with a history of persistent elevation of ALT for more than 6 months. He remains asymptomatic during this period. Other liver function tests, including ALP, bilirubin, and albumin, were normal. Diagnostic evaluation in this scenario includes all the given tests, EXCEPT:

Antimitochondrial antibody (AMA). This question tests your ability to differentiate between various causes of chronic asymptomatic transaminitis (elevated ALT/AST for >6 months). [2] ### **Explanation of the Correct Answer** **Antimitochondrial antibody (AMA)** is the hallmark marker for **Primary Biliary Cholangitis (PBC)**. PBC is a cholestatic liver disease characterized by the destruction of small intrahepatic bile ducts. The biochemical profile of PBC typically shows a significant elevation in **Alkaline Phosphatase (ALP)** and GGT, rather than an isolated elevation of ALT. [4] Since the patient has a normal ALP, PBC is highly unlikely, making AMA an unnecessary initial test. ### **Evaluation of Other Options** * **Anti-HCV antibody (Option C):** Chronic Hepatitis C is a leading cause of asymptomatic elevation of ALT. Screening for Hepatitis B (HBsAg) and Hepatitis C is a mandatory first-line step in evaluating chronic transaminitis. [2] * **Iron saturation percentage (Option A):** Hereditary Hemochromatosis often presents with asymptomatic transaminitis in its early stages. [2] Screening involves checking transferrin saturation and ferritin levels. * **Antinuclear antibody (ANA) (Option B):** Autoimmune Hepatitis (AIH) can present with persistent ALT elevation even in asymptomatic patients. [1] ANA and Anti-Smooth Muscle Antibody (ASMA) are the primary screening tools for AIH. [3] ### **Clinical Pearls for NEET-PG** * **Isolated ALT/AST elevation:** Think of NAFLD (most common), Chronic Viral Hepatitis, Alcohol, Hemochromatosis, or Autoimmune Hepatitis. [2] * **Isolated ALP elevation:** Think of Cholestatic diseases (PBC, PSC) or infiltrative diseases (Sarcoidosis, malignancy). [4] * **AST:ALT Ratio:** A ratio **>2:1** is highly suggestive of Alcoholic Liver Disease; a ratio **<1** is typically seen in NAFLD. * **First-line investigations** for asymptomatic transaminitis: HBsAg, Anti-HCV, Lipid profile (for NAFLD), and Iron studies. [2]

Q: Pancreatic cholera is characterized by all except:

Hypocalcemia. **Explanation:** Pancreatic cholera, also known as **WDHA Syndrome** (Watery Diarrhea, Hypokalemia, Achlorhydria) or **Verner-Morrison Syndrome**, is caused by a **VIPoma**—a non-beta cell islet tumor of the pancreas that hypersecretes Vasoactive Intestinal Peptide (VIP). **Why Hypocalcemia is the Correct Answer:** Hypocalcemia is **not** a feature of pancreatic cholera. In fact, **Hypercalcemia** is frequently observed in these patients. This occurs for two reasons: VIP itself has a direct bone-resorbing effect, and VIPomas are often associated with **MEN-1 syndrome**, where co-existing hyperparathyroidism leads to elevated calcium levels. **Analysis of Incorrect Options:** * **Hypochlorhydria (A):** VIP inhibits gastric acid secretion by the parietal cells. This leads to achlorhydria or hypochlorhydria, distinguishing it from Zollinger-Ellison Syndrome (which has high acid). * **Hypokalemia (B):** Massive secretory diarrhea (often >3L/day) results in significant enteric loss of potassium, leading to profound muscle weakness and cardiac arrhythmias. * **Glucose Intolerance (C):** VIP promotes hepatic glycogenolysis, which can lead to hyperglycemia and impaired glucose tolerance in about 20-50% of patients. **NEET-PG High-Yield Pearls:** * **Classic Presentation:** "Tea-colored" watery diarrhea that persists even during fasting. * **Diagnosis:** Elevated fasting plasma VIP levels (>200 pg/mL). * **Localization:** Most VIPomas are located in the **tail of the pancreas**. * **Management:** Initial stabilization requires aggressive fluid/electrolyte replacement and **Octreotide** (somatostatin analogue) to inhibit VIP release. Surgical resection is the definitive treatment.

Question 1

A 54-year-old woman with a history of chronic hepatitis B infection presents with increased malaise over the past year. She was hospitalized 1 year ago for upper gastrointestinal hemorrhage. Physical examination reveals a firm, nodular liver. Laboratory findings include a serum albumin level of 2.5 g/dL and a prothrombin time of 28 seconds. Which of the following additional physical examination findings is most likely to be present in this woman?

Accepted Answer

Caput medusae

Answer

Diminished deep tendon reflexes

Answer

Distended jugular veins

Answer

Papilledema

Question 2

The hepatocellular pattern of drug-induced liver injury (DILI) is defined by which of the following criteria?

Accepted Answer

Alanine aminotransferase (ALT)/Alkaline phosphatase (ALP) ratio more than 5

Answer

Aspartate aminotransferase (AST) greater than 3 times the upper limit of normal

Answer

Alanine aminotransferase (ALT) and Alkaline phosphatase (ALP) more than 3 times the upper limit of normal

Answer

Alanine aminotransferase (ALT)/Alkaline phosphatase (ALP) ratio between 2-5

Question 3

Which of the following statements regarding Inflammatory Bowel Disease are true and which are false?
1. Mucosal granularity is the earliest finding seen in ulcerative colitis.
2. Coomb sign is seen in UC.
3. Lead pipe colon is seen in UC.
4. Fibrosis and strictures are more common in UC.
5. Apthous ulcers are the earliest finding seen in CD.

Accepted Answer

1. True, 2. False, 3. True, 4. False, 5. True

Answer

1. True, 2. False, 3. False, 4. True, 5. False

Answer

1. False, 2. True, 3. True, 4. False, 5. True

Answer

1. True, 2. False, 3. False, 4. False, 5. False

Question 4

The Rockall score is used in the prognosis of which of the following conditions?

Accepted Answer

Upper gastrointestinal bleed

Answer

Lower gastrointestinal bleed

Answer

Hepatic encephalopathy

Answer

Inflammatory bowel disease

Question 5

A 70-year-old man presented with itching, jaundice and a palpable mass per abdomen and clay-colored stools. Urine tests performed on his sample yielded positive results. What is the type of jaundice he is suffering from?

Accepted Answer

Obstructive jaundice

Answer

Hemolytic jaundice

Answer

Prehepatic jaundice

Answer

Hepatic jaundice

Question 6

Which drug is effective in ulcerative colitis?

Accepted Answer

5-aminosalicylic acid (5-ASA)

Answer

Steroids

Answer

Sulfasalazine

Answer

Antibiotics

Question 7

A 28-year-old man presents with symptoms of frequent bowel movements, crampy abdominal pain, and the passage of mucus. There is no history of bloody diarrhea, but recently, he developed joint discomfort in his hands, knees, and back. On examination, he is thin, and his abdomen is soft with voluntary guarding in the left lower quadrant. His joints are not actively inflamed and there is an asymmetric distribution. Which of the following is the most likely diagnosis?

Accepted Answer

Ulcerative colitis

Answer

Lymphoma of the bowel

Answer

Amyloid infiltration

Answer

Chronic pancreatitis

Question 8

Low serum cobalamin and elevated serum folate levels are seen in?

Accepted Answer

Bacterial overgrowth syndrome

Answer

Acute myeloid leukemia

Answer

Celiac sprue

Answer

Chronic myeloid leukemia

Question 9

A 35-year-old male presented with a history of persistent elevation of ALT for more than 6 months. He remains asymptomatic during this period. Other liver function tests, including ALP, bilirubin, and albumin, were normal. Diagnostic evaluation in this scenario includes all the given tests, EXCEPT:

Accepted Answer

Antimitochondrial antibody (AMA)

Answer

Iron saturation percentage

Answer

Antinuclear antibody (ANA)

Answer

Anti-HCV antibody

Question 10

Pancreatic cholera is characterized by all except:

Accepted Answer

Hypocalcemia

Answer

Hypochlorhydria

Answer

Hypokalemia

Answer

Glucose intolerance

Gastroenterology — MCQs

Gastroenterology — MCQs

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