Gastroenterology Practice Questions

Q: Which of the following is not a feature of non-cirrhotic portal hypertension?

Ascites. **Explanation:** Non-cirrhotic portal hypertension (NCPH) refers to a group of disorders characterized by increased portal pressure in the absence of cirrhosis. The hallmark of NCPH is **preserved liver synthetic function** and a normal hepatic venous pressure gradient (HVPG). **1. Why Ascites is the correct answer:** In NCPH, the site of resistance to portal flow is usually **pre-sinusoidal** (e.g., Non-cirrhotic portal fibrosis or Extrahepatic portal vein obstruction). Because the resistance occurs before the sinusoids, the sinusoidal pressure remains relatively normal. Ascites typically requires high sinusoidal pressure and hypoalbuminemia (due to liver failure) to develop. Therefore, **ascites is conspicuously absent** [1] or only transiently seen after a major variceal bleed. **2. Analysis of Incorrect Options:** * **B. Hematemesis:** This is a common presentation of NCPH. Increased portal pressure leads to the development of gastroesophageal varices. Since liver function is preserved, these patients tolerate bleeds better than cirrhotic patients but often present with massive hematemesis. * **C. Splenomegaly:** This is a cardinal feature of NCPH. Congestive splenomegaly is often massive and is frequently the first clinical sign, often accompanied by hypersplenism (thrombocytopenia/leukopenia). **Clinical Pearls for NEET-PG:** * **Key Examples of NCPH:** Non-cirrhotic portal fibrosis (NCPF), Extrahepatic portal vein obstruction (EHPVO), and Schistosomiasis. * **Differentiating Feature:** In NCPH, Liver Function Tests (LFTs) and liver biopsy (architecture) are typically **normal**. * **HVPG:** In pre-sinusoidal NCPH, the HVPG (Hepatic Venous Pressure Gradient) is usually normal [2] or low, despite the presence of clinical portal hypertension.

Q: Steakhouse syndrome or intermittent food impaction is due to which of the following anomalies?

Schatzki ring. ### **Explanation** **Schatzki Ring (Correct Answer):** Steakhouse syndrome refers to acute esophageal food impaction, typically caused by a large, poorly chewed piece of meat. The most common underlying structural cause is a **Schatzki ring**. This is a smooth, benign, circumferential mucosal thinning located at the squamocolumnar junction (lower esophagus). It characteristically presents with **intermittent episodic dysphagia** to solids only. When the luminal diameter is <13 mm, food impaction is highly likely. **Analysis of Incorrect Options:** * **Feline Esophagus:** This is a transient endoscopic finding of multiple horizontal mucosal folds (resembling a cat's esophagus), usually associated with Gastroesophageal Reflux Disease (GERD) or Eosinophilic Esophagitis. It does not typically cause acute food impaction. * **Achalasia Cardia:** This is a motility disorder characterized by failure of the Lower Esophageal Sphincter (LES) to relax [1]. It presents with **progressive dysphagia** to both solids and liquids, rather than the sudden, intermittent impaction seen in Steakhouse syndrome [1]. * **Esophageal Carcinoma:** This presents with **progressive, persistent dysphagia** (solids followed by liquids) accompanied by significant weight loss and constitutional symptoms, unlike the episodic nature of Schatzki rings. **High-Yield Clinical Pearls for NEET-PG:** * **Location:** Schatzki rings are always found at the **B-line** (squamocolumnar junction). * **Association:** Frequently associated with **Hiatal Hernia**. * **Diagnosis:** Barium swallow is often more sensitive than endoscopy for detection. * **Management:** Reassurance, chewing food thoroughly, and endoscopic dilation if symptoms persist.

Q: Which of the following tests differentiates between diffuse esophageal spasm and GERD?

Ambulatory 24-hour pH monitoring. **Explanation:** The clinical presentation of **Diffuse Esophageal Spasm (DES)** and **Gastroesophageal Reflux Disease (GERD)** often overlaps, as both can present with retrosternal chest pain and dysphagia. 1. **Why Option C is Correct:** **Ambulatory 24-hour pH monitoring** is the gold standard for diagnosing GERD. It quantifies acid exposure in the distal esophagus. In many cases, DES is actually secondary to underlying acid reflux (reflux-induced spasm). By performing pH monitoring, clinicians can determine if the esophageal symptoms and manometric abnormalities are driven by pathological acid reflux. If the pH study is positive, the primary diagnosis is GERD; if negative, a primary motility disorder like DES is confirmed. 2. **Why Other Options are Incorrect:** * **A. Barium Swallow:** While it may show a "corkscrew esophagus" in DES or reflux/hiatal hernia in GERD, it is a structural study and lacks the sensitivity to definitively differentiate the functional etiology of chest pain. * **B. Manometry:** This is the gold standard for diagnosing DES (showing high-amplitude, non-peristaltic contractions). However, manometry alone cannot rule out GERD, as GERD can cause secondary motility patterns that mimic DES. * **C. Biopsy:** Endoscopic biopsy is used to identify esophagitis, Barrett’s esophagus, or eosinophilic esophagitis. It does not provide information on the functional motility of the esophagus. **High-Yield Clinical Pearls for NEET-PG:** * **DES Hallmark:** "Corkscrew" or "Rosary bead" appearance on Barium swallow. * **Manometry Criteria for DES:** Simultaneous (non-peristaltic) contractions in >20% of wet swallows with amplitudes >30 mmHg. * **DeMeester Score:** Used in 24-hour pH monitoring to quantify GERD (Score >14.72 is abnormal). * **First-line treatment for DES:** Nitrates or Calcium Channel Blockers (to relax smooth muscle).

Q: When ascitic fluid is a typical transudate but contains more than 250 WBC/cmm, what is the probable diagnosis?

Cirrhotic ascites with occult peritoneal infection. The diagnosis of ascitic fluid is based on the **Serum-Ascites Albumin Gradient (SAAG)** and the **Absolute Neutrophil Count (ANC)**. [1] **1. Why Option D is Correct:** In a patient with cirrhosis, the ascitic fluid is typically a **transudate** (SAAG ≥ 1.1 g/dL) due to portal hypertension. [1] However, the normal WBC count in uncomplicated cirrhotic ascites is <250 cells/mm³. When the WBC count exceeds **250 cells/mm³** (specifically neutrophils), it indicates an inflammatory response within the peritoneum. In the absence of a surgically treatable source of infection, this is diagnostic of **Spontaneous Bacterial Peritonitis (SBP)** or occult peritoneal infection. **2. Why Other Options are Incorrect:** * **A. Congestive Heart Failure (CHF):** While CHF produces a high SAAG (transudate), the WBC count is typically very low ( 2.5 g/dL) is more characteristic of CHF than high cell count. [1] * **B. Tubercular Ascites:** This typically presents as an **exudate** (SAAG < 1.1 g/dL) with a high protein count and a predominance of **lymphocytes**, not just a general increase in WBCs. [1] * **C. Cirrhosis of Liver:** Uncomplicated cirrhosis presents as a transudate, but the WBC count must be **<250 cells/mm³**. Once it crosses this threshold, it is no longer "simple" cirrhotic ascites. [1] **High-Yield NEET-PG Pearls:** * **SBP Definition:** Ascitic fluid PMN (polymorphonuclear leukocyte) count **≥ 250 cells/mm³** with a positive culture. * **Culture-Negative Neutrocytic Ascites (CNNA):** PMN ≥ 250 cells/mm³ but negative culture; treated the same as SBP. * **Mnemonic:** High SAAG (≥ 1.1) = Portal Hypertension (Cirrhosis, CHF, Budd-Chiari). Low SAAG (< 1.1) = Non-portal hypertension (TB, Malignancy, Nephrotic syndrome). [1] * **Treatment of choice for SBP:** Third-generation cephalosporins (e.g., **Cefotaxime**).

Q: A 25-year-old male presents with pigmented macules on the palms, soles, and oral mucosa. He also has anemia and abdominal pain. What is the most probable diagnosis?

Peutz-Jeghers syndrome. ### Explanation **Correct Answer: C. Peutz-Jeghers syndrome (PJS)** **1. Why it is correct:** Peutz-Jeghers syndrome is an autosomal dominant condition characterized by the mutation of the **STK11 (LKB1)** gene on chromosome 19. The clinical hallmark is the presence of **mucocutaneous hyperpigmentation** (melanotic macules) on the lips, buccal mucosa, palms, and soles. These patients develop multiple **hamartomatous polyps** throughout the GI tract (most commonly the small intestine) [1]. These polyps often lead to complications like **intussusception**, chronic GI bleeding (causing **anemia**), and abdominal pain. **2. Why the other options are incorrect:** * **Albright’s syndrome (McCune-Albright):** Characterized by a triad of polyostotic fibrous dysplasia, precocious puberty, and *Café-au-lait* spots (large, irregular "Coast of Maine" borders), not small mucosal macules. * **Cushing’s syndrome:** Presents with systemic features like truncal obesity, striae, and hypertension. While hyperpigmentation can occur in ACTH-dependent causes (Addisonian type), it lacks the characteristic hamartomatous polyposis and mucosal distribution seen here. * **Incontinentia pigmenti:** An X-linked dominant dermatosis that follows the Lines of Blaschko. It progresses through stages (vesicular, verrucous, hyperpigmented, and atrophic) and is usually seen in females, as it is typically lethal in males. **3. NEET-PG High-Yield Pearls:** * **Inheritance:** Autosomal Dominant (STK11 gene). * **Polyp Type:** Hamartomatous (characterized by a "branching tree" appearance of smooth muscle) [1]. * **Cancer Risk:** Significantly increased risk of GI (colorectal, pancreatic) and extra-GI malignancies (breast, ovary, cervix, and Sertoli cell tumors of the testes) [1]. * **Most common site of polyps:** Small intestine (Jejunum > Ileum > Duodenum). * **Most common complication:** Intussusception.

Q: Regarding Schatzki's ring, what is the true statement?

It is located at the lower esophagus.. Schatzki’s ring (also known as a B-ring) is a smooth, benign, circumferential thin mucosal narrowing located at the squamocolumnar junction of the lower esophagus. It is one of the most common causes of intermittent solid food dysphagia ("Steakhouse Syndrome"). Analysis of Options: * Option C (Correct): Schatzki’s rings are strictly located at the distal esophagus, specifically at the junction of the esophageal and gastric mucosa (Z-line) [1]. They are almost always associated with a hiatal hernia [1]. * Option A: The lower esophagus consists primarily of smooth muscle. Skeletal muscle is found in the upper third of the esophagus. * Option B: Rings or webs in the upper esophagus are characteristic of Plummer-Vinson Syndrome, not Schatzki’s ring. * Option D: A Schatzki’s ring is a mucosal ring, meaning it consists only of mucosa and submucosa. It does not contain the muscularis propria layer (unlike esophageal "A-rings" or contractile rings). High-Yield Clinical Pearls for NEET-PG: * Clinical Presentation: Intermittent dysphagia to solids, often triggered by poorly chewed meat or bread. * Diagnosis: Barium Swallow is more sensitive than endoscopy for detection; it appears as a thin, diaphragm-like transverse band. * Association: Strongly associated with Hiatal Hernia and sometimes GERD [1]. * Treatment: Reassurance and dietary modification (chewing thoroughly); if symptomatic, endoscopic dilation is the treatment of choice.

Q: A 35-year-old woman presents with jaundice and is evaluated in the emergency department. For several days, she has experienced mild flu-like symptoms including anorexia, nausea, vomiting, fatigue, low-grade fever, and malaise. This morning, she noticed her urine was brown, and she has also developed moderate, steady pain in the right upper quadrant of her abdomen. She has no history of similar episodes. Physical examination reveals jaundice and an enlarged, tender liver. Blood chemistry studies show alanine aminotransferase (ALT) of 15,000 mIU/L, aspartate aminotransferase (AST) of 11,000 mIU/L, and alkaline phosphatase of 100 U/L. Which of the following is the most likely diagnosis?

Acute hepatitis. **Explanation:** The clinical presentation and laboratory findings are classic for **Acute Hepatitis**. **1. Why Acute Hepatitis is correct:** The patient presents with a prodrome of "flu-like" symptoms (anorexia, malaise, fever) followed by jaundice and right upper quadrant pain, which is the typical clinical course of acute viral or toxic hepatitis [2]. The hallmark of this case is the **massive elevation of serum aminotransferases (ALT/AST >10,000 U/L)**. In clinical practice, transaminase levels exceeding 1,000–5,000 U/L are highly suggestive of acute hepatocellular injury, most commonly caused by acute viral hepatitis (A, B, or E), drug-induced liver injury (e.g., Acetaminophen), or ischemic hepatitis ("shock liver") [1]. **2. Why the other options are incorrect:** * **Chronic Hepatitis:** This typically presents with mild to moderate elevations in transaminases (usually <500 U/L) and persists for over six months [3]. It does not cause the acute, massive "spike" seen here. * **Gallstone Disease (Choledocholithiasis):** While it causes RUQ pain and jaundice, it typically presents with a **cholestatic pattern** (disproportionately high Alkaline Phosphatase) rather than extreme transaminase elevation. * **Hepatic Cirrhosis:** This is a chronic, end-stage fibrotic process. Transaminases are often near normal or only slightly elevated because there is little functional parenchyma left to leak enzymes. **NEET-PG High-Yield Pearls:** * **ALT > AST:** Typical for most forms of acute viral hepatitis. * **AST > ALT (2:1 ratio):** Highly suggestive of **Alcoholic Hepatitis** (though levels rarely exceed 500 U/L in alcoholic cases). * **Highest Transaminase Levels (>10,000 U/L):** Usually seen in **Ischemic Hepatitis**, **Acetaminophen toxicity**, or **Acute Viral Hepatitis** [1]. * **Bilirubinuria:** The "brown urine" indicates conjugated hyperbilirubinemia, confirming the jaundice is hepatic or post-hepatic in origin [2].

Q: A 64-year-old woman with a longstanding diagnosis of mixed connective tissue disorder and pulmonary fibrosis is admitted with symptoms of recent increase in postprandrial retrosternal distress, heartburn, and nocturnal cough. Her ECG shows nonspecific T-wave changes and she finds minimal relief of her symptoms with sublingual NTG. On examination, she is not in any acute distress and is afebrile. Chest exam reveals bilateral crackles. CXR is shown. What is the most likely cause of this patient's acute symptoms?

Large hiatal hernia. ***Large hiatal hernia*** - **MCTD** commonly causes **esophageal dysmotility** and **gastroesophageal reflux**, leading to large hiatal hernias with **retrocardiac air-fluid levels** on CXR. - **Postprandial retrosternal distress**, **heartburn**, and **nocturnal cough** are classic **GERD symptoms**, with minimal relief from **NTG** ruling out cardiac etiology. *Mediastinal abscess* - Would present with **high fever**, **sepsis**, and systemic toxicity, which are absent in this afebrile patient. - CXR would show **mediastinal widening** with **fluid collections**, not the typical **retrocardiac air-fluid level** seen with hiatal hernia. *Pneumopericardium* - Would present with **chest pain** and potentially **pericardial friction rub** on examination. - CXR would show **air around the heart** (**pneumopericardium sign**), not the **gastric air-fluid level** behind the heart. *Ileus* - Would present with **abdominal distension**, **nausea**, **vomiting**, and **absent bowel sounds**. - Symptoms are **abdominal**, not the **retrosternal** and **respiratory symptoms** described in this case.

Question 1

Which of the following is not a feature of non-cirrhotic portal hypertension?

Accepted Answer

Ascites

Answer

Hematemesis

Answer

Splenomegaly

Answer

All are seen

Question 2

Steakhouse syndrome or intermittent food impaction is due to which of the following anomalies?

Accepted Answer

Schatzki ring

Answer

Feline esophagus

Answer

Achalasia cardia

Answer

Esophageal carcinoma

Question 3

Which of the following tests differentiates between diffuse esophageal spasm and GERD?

Accepted Answer

Ambulatory 24-hour pH monitoring

Answer

Barium swallow

Answer

Manometry

Answer

Biopsy

Question 4

When ascitic fluid is a typical transudate but contains more than 250 WBC/cmm, what is the probable diagnosis?

Accepted Answer

Cirrhotic ascites with occult peritoneal infection

Answer

Congestive heart failure (CHF)

Answer

Tubercular ascites

Answer

Cirrhosis of liver

Question 5

A 25-year-old male presents with pigmented macules on the palms, soles, and oral mucosa. He also has anemia and abdominal pain. What is the most probable diagnosis?

Accepted Answer

Peutz-Jeghers syndrome

Answer

Albright's syndrome

Answer

Cushing's syndrome

Answer

Incontinentia pigmenti

Question 6

Regarding Schatzki's ring, what is the true statement?

Accepted Answer

It is located at the lower esophagus.

Answer

It has skeletal muscle.

Answer

It is located at the upper esophagus.

Answer

It contains all layers of the esophagus.

Question 7

A 35-year-old woman presents with jaundice and is evaluated in the emergency department. For several days, she has experienced mild flu-like symptoms including anorexia, nausea, vomiting, fatigue, low-grade fever, and malaise. This morning, she noticed her urine was brown, and she has also developed moderate, steady pain in the right upper quadrant of her abdomen. She has no history of similar episodes. Physical examination reveals jaundice and an enlarged, tender liver. Blood chemistry studies show alanine aminotransferase (ALT) of 15,000 mIU/L, aspartate aminotransferase (AST) of 11,000 mIU/L, and alkaline phosphatase of 100 U/L. Which of the following is the most likely diagnosis?

Accepted Answer

Acute hepatitis

Answer

Chronic hepatitis

Answer

Gallstone disease

Answer

Hepatic cirrhosis

Question 8

A 19-year-old woman presents with a tremor at rest that has progressively worsened over 6 months. She also exhibits paranoid ideation with auditory hallucinations and has been diagnosed with acute psychosis. Physical examination reveals scleral icterus, and a slit-lamp examination shows corneal Kayser-Fleischer rings. Laboratory findings include total serum protein of 5.9 g/dL, albumin of 3.1 g/dL, total bilirubin of 4.9 mg/dL, direct bilirubin of 3.1 mg/dL, AST of 128 U/L, ALT of 157 U/L, and alkaline phosphatase of 56 U/L. Which of the following additional serologic test findings is most likely to be reported in this patient?

Accepted Answer

Decreased ceruloplasmin level

Answer

Decreased alpha-1-antitrypsin level

Answer

Increased alpha-fetoprotein level

Answer

Increased ferritin level

Question 9

A 64-year-old woman with a longstanding diagnosis of mixed connective tissue disorder and pulmonary fibrosis is admitted with symptoms of recent increase in postprandrial retrosternal distress, heartburn, and nocturnal cough. Her ECG shows nonspecific T-wave changes and she finds minimal relief of her symptoms with sublingual NTG. On examination, she is not in any acute distress and is afebrile. Chest exam reveals bilateral crackles. CXR is shown. What is the most likely cause of this patient's acute symptoms?

Accepted Answer

Large hiatal hernia

Answer

Mediastinal abscess

Answer

Pneumopericardium

Answer

Ileus

Question 10

According to Child-Pugh criteria, what is the classification for a child with encephalopathy, serum bilirubin of 2.5 mg/dL, serum albumin of 3 gm/dL, prothrombin time of 5 seconds, and controlled ascites?

Accepted Answer

Grade B

Answer

Grade A

Answer

Grade C

Answer

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Gastroenterology — MCQs

Gastroenterology — MCQs

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