Gastroenterology Practice Questions

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 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: What is the best method of diagnosis for Wilson's disease?

Serum ceruloplasmin. ***Serum ceruloplasmin*** - **Low serum ceruloplasmin** is a hallmark of Wilson's disease, as ceruloplasmin is the primary copper-carrying protein in the blood, and impaired copper incorporation into ceruloplasmin is a key defect. - A **decreased level** (<20 mg/dL) combined with other clinical signs and symptoms is a strong diagnostic indicator. *Serum copper* - While Wilson's disease involves copper accumulation, **total serum copper** levels can be paradoxically normal or even low because most circulating copper is bound to ceruloplasmin, which is deficient. - Therefore, total serum copper is **not a reliable standalone diagnostic marker** for Wilson's disease. *Karyotyping* - **Karyotyping** is used to analyze an individual's chromosomes for genetic abnormalities, such as aneuploidy (e.g., Down syndrome) or translocations. - Wilson's disease is caused by a mutation in the **ATP7B gene** on chromosome 13, but this is a gene-level defect, not a chromosomal abnormality detectable by standard karyotyping. *PCR* - **PCR (Polymerase Chain Reaction)** is a molecular biology technique used to amplify specific DNA sequences. - While PCR can be used for **genetic testing** to identify specific mutations in the ATP7B gene (the definitive test for Wilson's disease), it is not typically the *initial best method* of diagnosis due to cost and the availability of less invasive biochemical markers.

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].

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: A 55 years old male with a known history of gallstones presents with chief complaints of severe abdominal pain and elevated levels of serum lipase with periumbilical ecchymosis. All of the following are prognostic criteria to predict the severity of acute pancreatitis except:

Serum GGT. ***Serum GGT*** - **Serum GGT (gamma-glutamyl transpeptidase)** is primarily used to evaluate liver and bile duct function and cholestasis, not as a direct prognostic indicator for acute pancreatitis severity. - While gallstones are mentioned, GGT elevation in this context would suggest the cause of pancreatitis rather than its severity. *Age* - **Age older than 55 years** is a significant prognostic factor in various scoring systems like Ranson's criteria and the APACHE II score, indicating a higher risk of severe disease and complications [1]. - Older patients generally have less physiologic reserve and are more prone to organ failure during severe pancreatitis [1]. *Serum LDH* - **Elevated serum LDH (lactate dehydrogenase)**, specifically above 350 IU/L, is one of Ranson's criteria for assessing the severity of acute pancreatitis within the first 48 hours. - It suggests significant tissue damage and necrosis, which correlates with worse outcomes. *Base deficit* - A **base deficit greater than 4 mEq/L** is an indicator of metabolic acidosis and is included in prognostic scoring systems for acute pancreatitis, such as the modified Glasgow criteria. - It reflects poor tissue perfusion, hypovolemia, and potentially severe systemic inflammation.

Q: A 45 year old lawyer presents with pain in the abdomen more so in the epigastric region that worsens with eating spicy food and is relieved by bending forward. Complications of the above mentioned condition could be all except:

Splenic Vein Thrombosis. ***Splenic Vein Thrombosis*** - The patient's symptoms (epigastric pain worsening with spicy food, relieved by bending forward) are highly suggestive of **pancreatitis**, not peptic ulcer disease [1]. **Splenic vein thrombosis** is a known complication of chronic pancreatitis due to inflammation and compression of the splenic vein [2]. - While pancreatitis can cause significant morbidity, **splenic vein thrombosis** is a specific vascular complication associated with prolonged inflammation of the pancreas, leading to localized portal hypertension and potentially isolated gastric varices. *Perforation* - **Perforation** (specifically of a peptic ulcer or potentially surrounding bowel in severe pancreatitis) is a severe complication that can occur in conditions causing abdominal pain, but it is not the *exception* among the given options for the likely underlying condition indicated by the patient's symptoms (pancreatitis) [3]. - This complication typically leads to **peritonitis**, a medical emergency requiring immediate surgical intervention [3]. *Bleeding* - **Bleeding** (e.g., from a pancreatic pseudocyst rupturing into the gastrointestinal tract or from localized varices secondary to portal hypertension in pancreatitis) is a recognized complication of the patient's likely underlying condition [1]. - Gastrointestinal bleeding can also result from **gastric erosions** or ulcers exacerbated by ongoing inflammation. *Gastric Outlet Obstruction* - **Gastric outlet obstruction** can occur as a complication of severe or chronic pancreatitis, often due to **inflammation**, **fibrosis**, or **pseudocyst formation** compressing the duodenum [1]. - This typically presents with **postprandial vomiting** and early satiety, which can arise in the context of chronic pancreatic inflammation.

Question 1

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 2

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 3

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 4

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 5

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 6

What is the best method of diagnosis for Wilson's disease?

Accepted Answer

Serum ceruloplasmin

Answer

Serum copper

Answer

Karyotyping

Answer

PCR

Question 7

Common cause of chronic pancreatitis

Accepted Answer

Chronic alcohol

Answer

Chronic pancreatic calculi

Answer

pancreas divisum

Answer

Gall bladder stones

Question 8

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 9

A 55 years old male with a known history of gallstones presents with chief complaints of severe abdominal pain and elevated levels of serum lipase with periumbilical ecchymosis. All of the following are prognostic criteria to predict the severity of acute pancreatitis except:

Accepted Answer

Serum GGT

Answer

Serum LDH

Answer

Base deficit

Answer

Age

Question 10

A 45 year old lawyer presents with pain in the abdomen more so in the epigastric region that worsens with eating spicy food and is relieved by bending forward. Complications of the above mentioned condition could be all except:

Accepted Answer

Splenic Vein Thrombosis

Answer

Bleeding

Answer

Gastric Outlet Obstruction

Answer

Perforation

Gastroenterology — MCQs

Gastroenterology — MCQs

On this page

Practice by Chapter

Want unlimited practice?