Gastroenterology — MCQs
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A 30-year-old male presents with chronic diarrhea, anemia, and raised liver enzymes. Which of the following is most likely associated?
A 50-year-old male presented with chronic breathlessness and intermittent jaundice. He denies smoking and alcohol abuse. Lung biopsy revealed panacinar emphysema with lower lobe predominance, and liver biopsy showed PAS-positive, diastase-resistant intracytoplasmic globules in hepatocytes. What is the most probable diagnosis?
Which of the following is the most common presenting symptom of non-cirrhotic portal hypertension?
A 45-year-old cirrhotic patient presented with severe haematemesis. What is the management of choice?
Which of the following is NOT true regarding GERD?
A 30-year-old male presents with chronic diarrhea, anemia, and elevated liver enzymes. What is the most likely associated condition?
Which of the following statements is NOT true regarding Wilson's disease?
Which of the following is NOT true about persistent caliber arteries?
The BISAP score is used to assess the severity of which of the following conditions?
Which of the following statements about watermelon stomach is false?
Gastroenterology Indian Medical PG Practice Questions and MCQs
Question 891: A 30-year-old male presents with chronic diarrhea, anemia, and raised liver enzymes. Which of the following is most likely associated?
- A. Antimitochondrial antibody
- B. Anti-endomysial antibody (Correct Answer)
- C. Anti-smooth muscle antibody
- D. Antinuclear antibody
Explanation: ### Explanation The clinical presentation of **chronic diarrhea, anemia (likely iron deficiency), and elevated liver enzymes** in a young adult is a classic triad for **Celiac Disease** [1]. While primarily a malabsorptive disorder, Celiac disease frequently presents with extra-intestinal manifestations, including subclinical hepatitis (elevated transaminases) and iron deficiency anemia due to blunting of the duodenal villi [1], [2]. **Why Anti-endomysial antibody (EMA) is correct:** Anti-endomysial antibody (IgA) is highly specific (>95%) for Celiac disease. It targets tissue transglutaminase (tTG) in the connective tissue lining of muscle fibers. In NEET-PG, remember that while **Anti-tTG** is the initial screening test of choice, **Anti-endomysial antibody** is the most specific confirmatory serological marker. **Analysis of Incorrect Options:** * **A. Antimitochondrial antibody (AMA):** This is the hallmark of **Primary Biliary Cholangitis (PBC)** [3]. While PBC causes raised liver enzymes (cholestatic pattern), it typically presents with pruritus and jaundice rather than chronic diarrhea and malabsorption. * **C. Anti-smooth muscle antibody (ASMA):** This is highly associated with **Type 1 Autoimmune Hepatitis** [4]. While it causes raised liver enzymes, it does not explain chronic diarrhea or malabsorptive anemia. * **D. Antinuclear antibody (ANA):** A non-specific marker seen in various autoimmune conditions (SLE, Autoimmune Hepatitis) [4]. It lacks the specificity required to diagnose the cause of chronic diarrhea. **Clinical Pearls for NEET-PG:** * **Gold Standard Diagnosis:** D2 (distal duodenal) biopsy showing Villous atrophy, Crypt hyperplasia, and increased Intraepithelial lymphocytes (Marsh Criteria) [1]. * **Associated HLA:** HLA-DQ2 (95%) and HLA-DQ8 [1]. * **Dermatological Association:** Dermatitis Herpetiformis (intensely pruritic vesicles on extensors). * **Liver Involvement:** "Celiac Hepatitis" is a common non-specific finding that usually resolves with a gluten-free diet.
Question 892: A 50-year-old male presented with chronic breathlessness and intermittent jaundice. He denies smoking and alcohol abuse. Lung biopsy revealed panacinar emphysema with lower lobe predominance, and liver biopsy showed PAS-positive, diastase-resistant intracytoplasmic globules in hepatocytes. What is the most probable diagnosis?
- A. Hemochromatosis
- B. Cystic fibrosis
- C. Alpha 1 antitrypsin deficiency (Correct Answer)
- D. Wilson's disease
Explanation: ***Alpha 1 antitrypsin deficiency*** - Causes **panacinar emphysema** with **lower lobe predominance** in non-smokers, leading to chronic breathlessness, and **hepatocyte globules** (PAS-positive, diastase-resistant) causing liver dysfunction and jaundice. - This condition uniquely affects both **lungs and liver** simultaneously, fitting the clinical presentation of respiratory symptoms with intermittent jaundice in a non-smoker/non-drinker. *Hemochromatosis* - Primarily causes **hepatic iron overload** leading to liver dysfunction, but respiratory symptoms are not a typical feature. - Associated with **diabetes mellitus**, **cardiomyopathy**, and **bronze skin pigmentation**, not primarily respiratory disease. *Cystic fibrosis* - Typically presents in **childhood** with **recurrent pulmonary infections**, **pancreatic insufficiency**, and **failure to thrive**. - Adult presentation is rare and usually involves a history of chronic infections and **bronchiectasis**, not isolated breathlessness with jaundice. *Wilson's disease* - Primarily affects the **liver** and **brain** with **copper accumulation**, causing neuropsychiatric symptoms and **Kayser-Fleischer rings**. - Respiratory involvement is **not characteristic**, and the disease typically presents with hepatic or neurological manifestations without lung disease.
Question 893: Which of the following is the most common presenting symptom of non-cirrhotic portal hypertension?
- A. Chronic liver failure
- B. Ascites
- C. Upper gastrointestinal bleeding (Correct Answer)
- D. Encephalopathy
Explanation: Non-cirrhotic portal hypertension (NCPH) refers to a group of disorders characterized by increased portal pressure in the absence of cirrhosis. The two most common types are **Non-Cirrhotic Portal Fibrosis (NCPF)** and **Extrahepatic Portal Venous Obstruction (EHPVO)**. [1] **1. Why Upper GI Bleeding is Correct:** In NCPH, the liver's synthetic function remains preserved because the hepatocytes are generally healthy [2]. However, the mechanical obstruction (pre-hepatic or intra-hepatic) leads to significant portal hypertension and the formation of large esophageal varices [1]. Because these patients do not have the systemic complications of liver failure, they remain asymptomatic until a varix ruptures, making **painless hematemesis (Upper GI bleeding)** the most common and often the first presenting symptom [1]. **2. Why Other Options are Incorrect:** * **A & D (Chronic Liver Failure and Encephalopathy):** These are hallmarks of cirrhosis. In NCPH, liver function tests (LFTs) and ammonia metabolism are typically normal; therefore, hepatic encephalopathy and stigmata of chronic liver failure are rare unless there is a precipitating factor like a massive bleed or sepsis. * **B (Ascites):** While ascites can occur transiently after a variceal bleed (due to sudden fluid shifts and salt/water retention), it is not a primary or common presenting feature because serum albumin levels and portal oncotic pressure are usually maintained [2]. **Clinical Pearls for NEET-PG:** * **Classic Triad of NCPH:** Massive splenomegaly, variceal bleeding, and preserved liver function. * **EHPVO:** Most common cause of portal hypertension in children; often associated with a history of neonatal umbilical sepsis. * **Imaging:** "Portal cavernoma" (cavernous transformation) is a characteristic finding on ultrasound in EHPVO. * **Prognosis:** Patients with NCPH have a much better prognosis than those with cirrhosis because their liver function is intact [2].
Question 894: A 45-year-old cirrhotic patient presented with severe haematemesis. What is the management of choice?
- A. Whole blood transfusion is the best initial management. (Correct Answer)
- B. Colloids are preferred over crystalloids for initial fluid resuscitation.
- C. Normal saline infusion is the primary fluid therapy.
- D. IV fluid administration with diuretics should be initiated.
Explanation: In a cirrhotic patient presenting with **severe haematemesis**, the primary goal is hemodynamic stabilization [1]. This patient is likely experiencing a massive variceal bleed, leading to hemorrhagic shock and a loss of both oxygen-carrying capacity and clotting factors [2]. **1. Why Option A is Correct:** In the context of severe, life-threatening upper GI bleeding in a cirrhotic patient, **Whole Blood Transfusion** is considered the management of choice for initial resuscitation. Unlike simple crystalloids, whole blood replaces volume, hemoglobin (for oxygen delivery), and provides essential coagulation factors and platelets, which are often deficient in cirrhotic patients. It addresses the "lethal triad" of trauma/hemorrhage: acidosis, coagulopathy, and hypothermia. **2. Why the other options are incorrect:** * **Option B:** Colloids (like albumin or dextran) are generally not superior to crystalloids for initial resuscitation in acute hemorrhage and carry risks of anaphylaxis and higher costs without proven mortality benefits in the acute setting. * **Option C:** While Normal Saline (Crystalloid) is often used for initial volume expansion, it does not replace oxygen-carrying capacity or clotting factors [1]. In severe cirrhosis, excessive saline can also worsen ascites and edema due to sodium overload. * **Option D:** Diuretics are contraindicated in acute hemorrhage. They would further deplete intravascular volume, worsening hypotension and potentially precipitating Hepatorenal Syndrome (HRS). **Clinical Pearls for NEET-PG:** * **Target Hemoglobin:** In stable cirrhotic patients with variceal bleeding, a **restrictive transfusion strategy** (maintaining Hb between 7–9 g/dL) is preferred to avoid increasing portal pressure, which can cause re-bleeding. * **Immediate Pharmacotherapy:** Start **Terlipressin** (preferred) or Octreotide immediately upon suspicion of variceal bleed, as it reduces portal pressure and mortality [3]. * **Prophylaxis:** Always initiate prophylactic antibiotics (e.g., **Ceftriaxone**) as they reduce mortality and the risk of spontaneous bacterial peritonitis (SBP) in these patients. * **Definitive Management:** Once stabilized, **Endoscopic Variceal Ligation (EVL)** is the procedure of choice [3].
Question 895: Which of the following is NOT true regarding GERD?
- A. Avoidance of coffee and tea is recommended.
- B. Transient lower esophageal relaxation is a contributing factor.
- C. Lower esophageal sphincter length and pressure are important. (Correct Answer)
- D. Proton pump inhibitors are the treatment of choice.
Explanation: **Explanation:** The pathophysiology of Gastroesophageal Reflux Disease (GERD) is multifactorial, but the primary mechanism is functional rather than purely structural. **Why Option C is the Correct Answer (The "False" Statement):** While the Lower Esophageal Sphincter (LES) is crucial, its **resting pressure and physical length** are often normal in many patients with GERD. The most common cause of reflux is not a permanently weak or short sphincter, but rather **Transient Lower Esophageal Sphincter Relaxations (TLESRs)**—spontaneous relaxations unrelated to swallowing [1]. Therefore, stating that LES length and pressure are the "important" (primary) factors is clinically inaccurate compared to the role of TLESRs. **Analysis of Other Options:** * **Option A:** Dietary modifications, including the avoidance of caffeine (coffee/tea), are standard lifestyle recommendations as they can decrease LES pressure and stimulate gastric acid secretion. * **Option B:** TLESRs are the most common underlying mechanism for GERD in patients without hiatus hernia [1]. * **Option D:** Proton Pump Inhibitors (PPIs) are the gold standard and treatment of choice for both symptom relief and healing of erosive esophagitis [1]. **NEET-PG High-Yield Pearls:** * **Gold Standard Investigation:** 24-hour ambulatory pH monitoring (specifically the DeMeester score). * **Most Common Symptom:** Heartburn (pyrosis). * **Extra-esophageal Manifestations:** Chronic cough, laryngitis, and asthma (Sandifer syndrome in children). * **Surgical Treatment:** Nissen Fundoplication (360° wrap) is the procedure of choice for refractory cases [1]. * **Barrett’s Esophagus:** A premalignant condition where squamous epithelium undergoes metaplasia to specialized columnar epithelium [2].
Question 896: A 30-year-old male presents with chronic diarrhea, anemia, and elevated liver enzymes. What is the most likely associated condition?
- A. Antimitochondrial antibody
- B. Anti-endomysial antibody (Correct Answer)
- C. Anti-smooth muscle antibody
- D. Antinuclear antibody
Explanation: ### Explanation The clinical presentation of **chronic diarrhea, anemia (likely iron-deficiency), and elevated liver enzymes** in a young adult is highly suggestive of **Celiac Disease** [1]. **1. Why Anti-endomysial antibody (EMA) is correct:** Celiac disease is an immune-mediated enteropathy triggered by gluten. While diarrhea and malabsorption (leading to anemia) [1] are classic symptoms, **extra-intestinal manifestations** are common. Elevated liver enzymes (transaminitis) occur in up to 40% of patients, often referred to as "Celiac Hepatitis," which typically resolves with a gluten-free diet. The **Anti-endomysial antibody (IgA)** is highly specific (nearly 100%) for diagnosing Celiac disease, alongside the Anti-tissue Transglutaminase (tTG) antibody. **2. Why other options are incorrect:** * **Antimitochondrial antibody (AMA):** This is the hallmark of **Primary Biliary Cholangitis (PBC)**. While PBC causes elevated liver enzymes (cholestatic pattern) and can be associated with Celiac disease [2], it does not typically present with chronic diarrhea as the primary symptom. * **Anti-smooth muscle antibody (ASMA):** This is a marker for **Autoimmune Hepatitis (Type 1)**. While it causes elevated liver enzymes, it is not associated with chronic malabsorptive diarrhea. * **Antinuclear antibody (ANA):** A non-specific marker seen in various autoimmune conditions (SLE, Autoimmune Hepatitis) [2] but lacks specificity for the gastrointestinal symptoms described. **Clinical Pearls for NEET-PG:** * **Gold Standard Diagnosis:** D2 (Second part of duodenum) biopsy showing Villous atrophy, Crypt hyperplasia, and increased Intraepithelial lymphocytes (Marsh Criteria) [1]. * **Dermatological Association:** Dermatitis Herpetiformis (itchy vesicles on elbows/knees). * **Initial Screening Test:** IgA Anti-tTG (Tissue Transglutaminase) is the preferred initial test [1]. * **Hidden Association:** Patients with Selective IgA deficiency may have false-negative serology; in such cases, IgG-based tests should be ordered.
Question 897: Which of the following statements is NOT true regarding Wilson's disease?
- A. It is caused by ATP7B mutation leading to impairment in copper metabolism.
- B. The most specific screening test is urinary excretion of copper.
- C. The gold standard diagnostic test is liver biopsy.
- D. Kayser-Fleischer rings are present in up to 30% of cases. (Correct Answer)
Explanation: Wilson’s disease (Hepatolenticular degeneration) is an autosomal recessive disorder of copper metabolism. **1. Why Option D is the correct answer (The False Statement):** Kayser-Fleischer (KF) rings, caused by copper deposition in the Descemet’s membrane of the cornea, are much more common than 30%. They are present in **95–100% of patients with neurological manifestations** and approximately **50–60% of patients with isolated hepatic involvement**. Therefore, stating they occur in only 30% of cases is clinically inaccurate. **2. Analysis of Incorrect Options (True Statements):** * **Option A:** The disease is caused by mutations in the **ATP7B gene** on chromosome 13. This defect impairs biliary copper excretion and the incorporation of copper into ceruloplasmin. * **Option B:** While serum ceruloplasmin is the initial screening test, **24-hour urinary copper excretion (>100 μg/day)** is considered the most reliable and specific screening tool for symptomatic patients. * **Option C:** **Liver biopsy** with quantitative copper assay (>250 μg/g dry weight) remains the **gold standard** for diagnosis, especially when biochemical tests are inconclusive. **Clinical Pearls for NEET-PG:** * **Diagnosis:** Low serum ceruloplasmin (<20 mg/dL) + KF rings (on slit-lamp exam) + high urinary copper. * **Hematology:** Look for **Coombs-negative hemolytic anemia** (due to sudden release of copper into the blood) [1]. * **Neurology:** "Giant Panda Sign" on MRI brain (midbrain involvement) [1]. * **Treatment:** **D-Penicillamine** (chelator) is the drug of choice; Zinc is used for maintenance or asymptomatic patients (prevents absorption).
Question 898: Which of the following is NOT true about persistent caliber arteries?
- A. Thermal coagulation
- B. Angiographic embolization
- C. Bleeding pinpoint mucosal erosion
- D. Deep enteroscopy (Correct Answer)
Explanation: Explanation: Persistent Caliber Artery, also known as a Dieulafoy’s Lesion, is a rare but life-threatening cause of gastrointestinal bleeding. It is characterized by a large-caliber submucosal artery that fails to taper as it approaches the mucosa, eventually eroding through the surface to cause massive arterial hemorrhage. Why "Deep Enteroscopy" is the correct (False) option: Deep enteroscopy (like double-balloon enteroscopy) is a diagnostic and therapeutic tool, not a characteristic or a specific management modality inherent to the pathology of the lesion itself. While it can be used to locate lesions in the small bowel, the question asks for features or standard management steps. Most Dieulafoy’s lesions (approx. 75%) are located in the proximal stomach (within 6 cm of the gastroesophageal junction), making standard upper endoscopy the primary approach rather than deep enteroscopy. Analysis of Incorrect Options: * Thermal Coagulation (A): This is a standard endoscopic treatment [1]. Modalities like electrocoagulation or heat probes are used to achieve hemostasis by coapting the vessel. * Angiographic Embolization (B): If endoscopic therapy fails or the lesion is not visualized due to massive bleeding, interventional radiology via selective arterial embolization is the next line of management. * Bleeding Pinpoint Mucosal Erosion (C): This is the classic pathological description. Unlike typical ulcers, there is no surrounding inflammatory bed; instead, there is a minute (1–3 mm) mucosal defect through which the large artery protrudes. Clinical Pearls for NEET-PG: * Classic Location: Lesser curvature of the stomach (proximal). * Clinical Presentation: Sudden, massive, painless hematemesis or melena. * Diagnosis: Often difficult because the lesion is small and may only be visible during active bleeding ("the disappearing lesion"). * Management: Endoscopic therapy (clipping, banding, or thermal) is the first line; surgery (wedge resection) is the last resort [1].
Question 899: The BISAP score is used to assess the severity of which of the following conditions?
- A. Pancreatitis (Correct Answer)
- B. Pancreatic abscess
- C. Pseudocyst of the pancreas
- D. Pseudocyst of the pancreas
Explanation: The **BISAP score** (Bedside Index for Severity in Acute Pancreatitis) is a validated clinical scoring system used to predict the severity and in-hospital mortality of **Acute Pancreatitis** [1]. It is preferred in clinical practice because it is simple, requires only data available within the first 24 hours of admission, and does not require complex calculations like the Ranson criteria. ### **Breakdown of the BISAP Score (Mnemonic: BISAP)** A score of **≥3** indicates a high risk of severe pancreatitis and increased mortality. * **B: BUN** > 25 mg/dL * **I: Impaired Mental Status** (Glasgow Coma Scale < 15) * **S: SIRS** (Systemic Inflammatory Response Syndrome) criteria met * **A: Age** > 60 years * **P: Pleural Effusion** (detected on imaging) ### **Why the other options are incorrect:** * **Pancreatic Abscess & Pseudocyst (Options B, C, D):** While these are complications of acute pancreatitis, the BISAP score is specifically designed to assess the **initial systemic severity** and mortality risk of the inflammatory process itself, rather than diagnosing or grading localized anatomical complications [1]. Local complications are better assessed using the **Balthazar Score** (CT Severity Index). ### **High-Yield Clinical Pearls for NEET-PG:** * **Gold Standard for Diagnosis:** Lipase (more specific than Amylase). * **Most Common Cause:** Gallstones (followed by Alcohol) [1]. * **Prognostic Scoring Systems:** Other scores for Acute Pancreatitis include **Ranson’s Criteria**, **APACHE II** (most accurate but complex), and the **Modified Glasgow Score** [1]. * **Timing:** BISAP is calculated within the first 24 hours; Ranson’s requires 48 hours for a complete assessment.
Question 900: Which of the following statements about watermelon stomach is false?
- A. Watermelon stomach is more common in females.
- B. It causes upper gastrointestinal bleeding.
- C. Treatment involves argon plasma photocoagulation.
- D. Dilated veins are present in the fundus. (Correct Answer)
Explanation: **Explanation:** **Watermelon Stomach**, medically known as **Gastric Antral Vascular Ectasia (GAVE)**, is a distinct cause of chronic gastrointestinal bleeding. **Why Option D is the correct (False) statement:** The hallmark of GAVE is the presence of dilated, tortuous mucosal capillaries and fibrin thrombi specifically in the **antrum** of the stomach, not the fundus. Endoscopically, these appear as longitudinal erythematous streaks radiating from the pylorus, resembling the stripes on a watermelon. In contrast, dilated veins in the fundus are characteristic of **gastric varices**, usually secondary to portal hypertension or splenic vein thrombosis. **Analysis of other options:** * **Option A:** GAVE is statistically more common in **females** (often elderly) and is frequently associated with systemic sclerosis (scleroderma) and autoimmune diseases. * **Option B:** It is a well-known cause of **upper GI bleeding**, typically presenting as chronic occult blood loss leading to iron deficiency anemia, though acute hematemesis can occur. * **Option C:** **Argon Plasma Coagulation (APC)** is the first-line endoscopic treatment. It is effective in cauterizing the superficial ectatic vessels to reduce transfusion requirements. **High-Yield Clinical Pearls for NEET-PG:** * **Association:** 30% of cases are associated with **Liver Cirrhosis**, but the majority are associated with **Systemic Sclerosis**. * **Histology:** Characterized by vascular ectasia of mucosal capillaries, focal thrombosis, and **spindle cell proliferation** in the lamina propria. * **Differential Diagnosis:** Often confused with portal hypertensive gastropathy (PHG). However, PHG usually affects the fundus/body and has a "mosaic" or "snake-skin" appearance, whereas GAVE affects the antrum. * **Refractory Cases:** If endoscopic therapy fails, antrectomy may be considered.
Practice by Chapter
Esophageal Disorders
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Peptic Ulcer Disease
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Inflammatory Bowel Disease
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Irritable Bowel Syndrome
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Malabsorption Syndromes
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Pancreatitis (Acute and Chronic)
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Gastrointestinal Bleeding
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Liver Diseases and Cirrhosis
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Viral Hepatitis
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Biliary Tract Disorders
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Gastrointestinal Motility Disorders
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Gastrointestinal Malignancies
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