Gastroenterology Practice Questions

Q: Which of the following statements regarding Plummer Vinson syndrome is NOT true?

It occurs exclusively in men.. Plummer-Vinson Syndrome (PVS), also known as **Paterson-Brown-Kelly Syndrome**, is characterized by a classic triad of **iron deficiency anemia (IDA), dysphagia, and esophageal webs**. [1] **Why Option C is the correct answer (False statement):** Plummer-Vinson Syndrome does **not** occur exclusively in men. In fact, it is classically seen in **middle-aged women** (typically in their 4th to 7th decades). The higher prevalence in females is attributed to the increased physiological demand for iron due to menstruation and pregnancy. [1] **Analysis of other options:** * **Option A:** It is indeed eponymously known as **Paterson-Brown-Kelly disease**, named after the British laryngologists who described it independently. * **Option B:** Iron deficiency is considered the primary etiological factor. [1] The depletion of iron-dependent enzymes leads to mucosal atrophy and the subsequent formation of esophageal webs. * **Option C:** **Achlorhydria** (absence of hydrochloric acid in gastric secretions) or hypochlorhydria is a common association, often linked to the generalized mucosal atrophy seen in these patients. **High-Yield Clinical Pearls for NEET-PG:** * **The Triad:** Iron deficiency anemia, Dysphagia (painless, for solids), and Esophageal webs (usually post-cricoid/upper esophagus). * **Physical Signs:** Glossitis (smooth red tongue), Koilonychia (spoon-shaped nails), and Cheilosis. * **Malignancy Risk:** It is a **premalignant condition**. Patients have an increased risk of developing **Squamous Cell Carcinoma** of the esophagus and pharynx. * **Treatment:** Iron supplementation often resolves the dysphagia; however, mechanical dilation may be required for persistent webs.

Q: The Child-Pugh score is used for assessing the prognosis of which condition?

Chronic liver disease. The **Child-Pugh score** (also known as the Child-Turcotte-Pugh score) is a validated clinical tool used to assess the prognosis and severity of **Chronic Liver Disease (CLD)**, particularly cirrhosis [1]. It predicts the risk of complications and survival rates, helping clinicians determine the necessity of liver transplantation. ### Why Option A is Correct: The score evaluates liver function based on five parameters (mnemonic: **ABCDE**): 1. **A**lbumin (Serum) 2. **B**ilirubin (Total) 3. **C**oagulation (INR/Prothrombin Time) 4. **D**istension (Ascites) 5. **E**ncephalopathy [1] Patients are categorized into three classes: **Class A** (5–6 points; well-compensated), **Class B** (7–9 points; significant functional impairment), and **Class C** (10–15 points; decompensated/poor prognosis). ### Why Other Options are Incorrect: * **B. COPD:** Severity is assessed using the **GOLD criteria** or the **BODE index** (BMI, Obstruction, Dyspnea, Exercise capacity) [3]. * **C. Chronic Renal Failure:** Staged based on the **eGFR** (Glomerular Filtration Rate) and albuminuria levels (KDIGO classification) [4]. * **D. Dilated Cardiomyopathy:** Prognosis and functional status are typically assessed using the **NYHA Classification** or **ACC/AHA Staging**. ### High-Yield Clinical Pearls for NEET-PG: * **MELD Score:** While Child-Pugh is used for bedside prognosis, the **MELD score** (Model for End-Stage Liver Disease) is used for **organ allocation** in liver transplants [2]. It uses Bilirubin, Creatinine, and INR. * **Modified Child-Pugh:** In some contexts, the score is modified to include the etiology of the disease. * **Surgical Risk:** Child-Pugh Class C patients have an extremely high perioperative mortality rate (>80%) and are generally contraindicated for elective non-cardiac surgery.

Q: A 50-year-old male presented with acute onset of retrosternal chest pain radiating to the back, accompanied by dysphagia, regurgitation, and heartburn. The patient reported similar episodes of chest pain in the past. Barium swallow and esophageal manometric studies were performed, and the ECG was normal. Manometry revealed aperistalsis in greater than 30% of wet swallows with 20% of contractions being simultaneous, and amplitudes greater than 30 mm Hg in the distal three-fifths of the esophagus. Which of the following drugs can be used to relieve the symptoms in this condition?

Sildenafil. The clinical presentation of retrosternal chest pain, dysphagia, and regurgitation, combined with specific manometric findings, points toward **Diffuse Esophageal Spasm (DES)**. **1. Why Sildenafil is Correct:** The manometric criteria for DES include simultaneous contractions (in >20% of wet swallows) and intermittent normal peristalsis. The underlying pathophysiology involves an imbalance between excitatory and inhibitory neurotransmission, leading to excessive smooth muscle contraction. **Sildenafil**, a Phosphodiesterase-5 (PDE-5) inhibitor, increases intracellular cGMP levels. This promotes nitric oxide-mediated smooth muscle relaxation in the esophagus, thereby reducing the amplitude of contractions and relieving both chest pain and dysphagia. **2. Why the Other Options are Incorrect:** * **Botulinum toxin:** While used for Achalasia Cardia to relax the Lower Esophageal Sphincter (LES) [1], it is not the first-line pharmacological choice for the diffuse muscular spasms seen in DES. * **Octreotide:** A somatostatin analogue used primarily in the management of variceal bleeding and acromegaly; it has no role in relaxing esophageal smooth muscle. * **Terlipressin:** A vasopressin analogue used for acute variceal hemorrhage and Hepatorenal Syndrome; it causes vasoconstriction and would not benefit esophageal motility disorders. **Clinical Pearls for NEET-PG:** * **DES Hallmark:** "Corkscrew" or "Rosary bead" appearance on Barium Swallow. * **Manometry:** The gold standard for diagnosis. Look for "Simultaneous, multi-peaked, high-amplitude contractions" [2,5]. * **Differential:** Always rule out cardiac causes (Normal ECG was a key clue here). * **First-line Medical Rx:** Nitrates and Calcium Channel Blockers (CCBs) are typically used first [2]; PDE-5 inhibitors like Sildenafil are effective alternatives.

Q: Ekiri syndrome is seen in infection with which organism?

Shigella. **Explanation:** **Ekiri Syndrome** (also known as Fulminant Encephalopathy) is a rare but lethal complication of **Shigellosis**, most commonly associated with *Shigella sonnei* and *Shigella flexneri*. It is characterized by a rapid onset of high-grade fever, seizures, and toxic encephalopathy, often occurring before the onset of significant diarrhea or dysentery [1]. **Why Shigella is correct:** The syndrome involves a sudden increase in cerebral pressure and brain edema. While the exact pathogenesis is debated, it is believed to be a combination of a host's hyper-immune response and the effects of Shiga toxins. It primarily affects children (ages 2–10) and is notorious for its high mortality rate despite minimal dehydration. **Why the other options are incorrect:** * **Salmonella:** Typically causes enteric fever (Typhoid) or gastroenteritis [1]. While it can cause neurological symptoms (Typhoid state/muttering delirium), it does not present as the specific Ekiri phenotype. * **E. coli:** Enterohemorrhagic E. coli (EHEC) is famously associated with **Hemolytic Uremic Syndrome (HUS)** [1] due to Shiga-like toxins, but not Ekiri syndrome. * **Pseudomonas:** This is an opportunistic pathogen causing pneumonia, UTI, or sepsis (Ecthyma gangrenosum), but it is not a primary cause of toxic dysentery syndromes. **High-Yield Clinical Pearls for NEET-PG:** * **Shigella species:** *S. dysenteriae* (Type 1) is the most severe; *S. sonnei* is the most common in developed countries. * **Infective Dose:** Shigella has a very low ID50 (only 10–100 organisms), making it highly contagious. * **Other Complications:** HUS (associated with *S. dysenteriae* Type 1), Reactive Arthritis (Reiter’s Syndrome), and rectal prolapse. * **Drug of Choice:** Ceftriaxone or Azithromycin (due to increasing Ciprofloxacin resistance).

Q: A 69-year-old man presents with acute upper gastrointestinal hemorrhage after repeated vomiting. Fiberoptic gastroscopy reveals three linear mucosal tears at the gastroesophageal junction. What is the diagnosis?

Mallory-Weiss tear. ### Explanation **Correct Option: D. Mallory-Weiss tear** The clinical presentation of hematemesis following repeated bouts of vomiting or retching is the classic hallmark of **Mallory-Weiss Syndrome (MWS)**. * **Pathophysiology:** MWS involves **longitudinal (linear) mucosal lacerations** at the gastroesophageal junction or the gastric cardia [1]. These tears are caused by a sudden increase in intra-abdominal pressure (e.g., vomiting, coughing, or straining), which leads to the stretching of the mucosa against a closed sphincter. * **Endoscopic Findings:** Gastroscopy typically reveals 1 to 3 linear tears, often located just below the Z-line. --- ### Why the other options are incorrect: * **A. Reflux esophagitis:** Presents with heartburn and dyspepsia. Endoscopy shows diffuse erythema, erosions, or circumferential ulcers, not isolated linear tears triggered by vomiting. * **B. Barrett's esophagus:** A chronic complication of GERD characterized by intestinal metaplasia (columnar epithelium). It appears as "salmon-pink" tongues of mucosa on endoscopy and does not cause acute bleeding post-vomiting. * **C. Carcinoma of the esophagus:** Usually presents with progressive dysphagia and weight loss. Endoscopy would reveal a friable mass, stricture, or malignant ulcer rather than superficial linear tears. --- ### NEET-PG High-Yield Pearls: * **Most common site:** Just distal to the squamocolumnar junction (gastric side of the GE junction). * **Risk Factors:** Alcoholism (most common), hyperemesis gravidarum, and bulimia. * **Management:** Most cases (80-90%) stop bleeding spontaneously [1]. For active bleeding, endoscopic therapy (epinephrine injection, clipping, or thermal coagulation) is the treatment of choice [1]. * **Distinction:** Do not confuse MWS with **Boerhaave Syndrome**, which is a *transmural* esophageal perforation (full thickness) leading to mediastinitis and surgical emergency.

Q: Which of the following syndromes is characterized by an esophageal web with resulting dysphagia, atrophic changes in the mucous membranes of the mouth, and a hypochromic microcytic anemia?

Plummer-Vinson syndrome. **Explanation:** The correct answer is **Plummer-Vinson syndrome (PVS)**, also known as Paterson-Brown-Kelly syndrome. This condition is classically defined by a clinical triad: 1. **Iron-deficiency anemia** (Hypochromic microcytic anemia). 2. **Esophageal webs** (Post-cricoid, causing painless dysphagia). 3. **Atrophic glossitis** (Smooth, red tongue due to mucosal atrophy). The underlying pathophysiology involves severe, chronic iron deficiency, which leads to the depletion of iron-dependent oxidative enzymes in the rapidly dividing cells of the esophageal mucosa, resulting in mucosal atrophy and web formation. **Analysis of Incorrect Options:** * **Marfan's syndrome:** A connective tissue disorder caused by mutations in the FBN1 gene (fibrillin-1). It presents with skeletal abnormalities (arachnodactyly), ectopia lentis, and aortic root dilation, not esophageal webs. * **Meckel's syndrome:** A rare, lethal ciliopathy characterized by a triad of occipital encephalocele, large polycystic kidneys, and postaxial polydactyly. * **Sjögren's syndrome:** An autoimmune destruction of exocrine glands (lacrimal and salivary). While it causes dry mouth (xerostomia) and dysphagia due to lack of saliva, it is not associated with esophageal webs or iron-deficiency anemia. **Clinical Pearls for NEET-PG:** * **Demographics:** Most common in middle-aged Caucasian women. * **Malignancy Risk:** PVS is a **premalignant condition**. Patients have an increased risk of developing **Squamous Cell Carcinoma** of the esophagus and pharynx (post-cricoid region). * **Physical Findings:** Look for **koilonychia** (spoon-shaped nails) and cheilosis. * **Treatment:** Iron supplementation often resolves the dysphagia; however, mechanical dilation may be required for persistent webs.

Q: What is the most important triad of symptoms in portal hypertension?

Splenomegaly, Esophageal varices, and Ascites. Portal hypertension (PHTN) is defined as a pathological increase in the portal venous pressure gradient (above 5 mmHg). The classic clinical triad consists of **Splenomegaly, Esophageal Varices, and Ascites**. [1] 1. **Splenomegaly:** This is often the first clinical sign. Increased pressure in the splenic vein leads to passive congestion and sequestration of blood cells within the spleen. 2. **Esophageal Varices:** These are the most clinically significant portosystemic collaterals. When portal pressure exceeds 10–12 mmHg, blood is diverted from the portal system to the systemic circulation via the left gastric vein to the esophageal venous plexus. [1][2] 3. **Ascites:** This occurs due to a combination of increased sinusoidal hydrostatic pressure and splanchnic vasodilation, often exacerbated by hypoalbuminemia in cirrhotic patients. [1] **Analysis of Incorrect Options:** * **Option A:** While hepatomegaly can occur in early cirrhosis or Budd-Chiari syndrome, the liver in chronic portal hypertension (cirrhosis) is typically **shrunken and nodular**, not enlarged. * **Options C & D:** While hemorrhoids (anorectal varices) are a feature of portosystemic shunting, they are less common and less clinically diagnostic than esophageal varices. **Generalized anasarca** suggests systemic issues like heart failure or nephrotic syndrome; in PHTN, fluid accumulation is typically localized to the peritoneal cavity (ascites) initially. [1] **High-Yield Clinical Pearls for NEET-PG:** * **Normal Portal Pressure:** 5–10 mmHg. * **Clinically Significant PHTN:** Gradient ≥10 mmHg (predicts varices). [1] * **Risk of Variceal Bleed:** Gradient ≥12 mmHg. * **Most common cause of PHTN (India/World):** Cirrhosis. [1] * **Caput Medusae:** Dilated veins around the umbilicus, another classic sign of portosystemic collateralization. [1]

Question 1

Which of the following statements regarding Plummer Vinson syndrome is NOT true?

Accepted Answer

It occurs exclusively in men.

Answer

It is otherwise known as Patterson-Brown-Kelly disease.

Answer

Iron deficiency anemia is probably the basic cause.

Answer

Achlorhydria is usually present.

Question 2

The Child-Pugh score is used for assessing the prognosis of which condition?

Accepted Answer

Chronic liver disease

Answer

COPD

Answer

Chronic renal failure

Answer

Dilated cardiomyopathy

Question 3

Nongastrointestinal complications of Crohn's disease include:

Accepted Answer

All of the above

Answer

Renal calculi

Answer

Cholelithiasis

Answer

Arthritis

Question 4

A 50-year-old male presented with acute onset of retrosternal chest pain radiating to the back, accompanied by dysphagia, regurgitation, and heartburn. The patient reported similar episodes of chest pain in the past. Barium swallow and esophageal manometric studies were performed, and the ECG was normal. Manometry revealed aperistalsis in greater than 30% of wet swallows with 20% of contractions being simultaneous, and amplitudes greater than 30 mm Hg in the distal three-fifths of the esophagus. Which of the following drugs can be used to relieve the symptoms in this condition?

Accepted Answer

Sildenafil

Answer

Botulinum toxin

Answer

Octreotide

Answer

Terlipressin

Question 5

Ekiri syndrome is seen in infection with which organism?

Accepted Answer

Shigella

Answer

Salmonella

Answer

E.coli

Answer

Pseudomonas

Question 6

Which of the following statements is true regarding alcoholic liver disease?

Accepted Answer

Concomitant HCV infection accelerates the development of cirrhosis.

Answer

Gynaecomastia is a marker of the development of portal hypertension.

Answer

An ALT:AST ratio >2 is typical of alcoholic liver disease.

Answer

The Fagerstrom questionnaire is used to diagnose alcohol-related problems in a patient.

Question 7

A 69-year-old man presents with acute upper gastrointestinal hemorrhage after repeated vomiting. Fiberoptic gastroscopy reveals three linear mucosal tears at the gastroesophageal junction. What is the diagnosis?

Accepted Answer

Mallory-Weiss tear

Answer

Reflux esophagitis with ulceration

Answer

Barrett's esophagus

Answer

Carcinoma of the esophagus

Question 8

All of the following statements about trientine use in Wilson's disease are true except?

Accepted Answer

It is less potent than penicillamine.

Answer

It is used as an alternative to penicillamine in patients intolerant to penicillamine.

Answer

It should not be administered within 2 hours of iron supplementation.

Answer

It can cause iron deficiency anemia which is reversible by oral iron supplements.

Question 9

Which of the following syndromes is characterized by an esophageal web with resulting dysphagia, atrophic changes in the mucous membranes of the mouth, and a hypochromic microcytic anemia?

Accepted Answer

Plummer-Vinson syndrome

Answer

Marfan's syndrome

Answer

Meckel's syndrome

Answer

Sjögren's syndrome

Question 10

What is the most important triad of symptoms in portal hypertension?

Accepted Answer

Splenomegaly, Esophageal varices, and Ascites

Answer

Splenomegaly, Hepatomegaly, and Ascites

Answer

Hemorrhoids, splenomegaly, and generalized anasarca

Answer

Esophageal varices, hemorrhoids, and generalized anasarca

Gastroenterology — MCQs

Gastroenterology — MCQs

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