Try it
General Medicine · Gastroenterology: hepatitis D
Sample itemA chronic HBsAg carrier presents with sudden severe hepatitis and is positive for anti-HDV IgM. What does this indicate?
Original practice item, not a recalled exam question. Nothing here is recorded.
The answer and the reasoning
A. Hepatitis D superinfection, which carries a high risk of fulminant hepatitis and chronicity
Hepatitis D virus is defective and needs HBsAg for assembly. Superinfection of an existing HBV carrier often causes severe acute hepatitis and progresses to chronic HDV in most cases. Coinfection at the same time usually resolves.
Option by option
A. Hepatitis D superinfection, which carries a high risk of fulminant hepatitis and chronicity (correct)
Correct. Superinfection on a carrier carries a poor outlook.
B. HCV infection
HCV is unrelated to anti-HDV IgM.
C. Reactivation of hepatitis A
Hepatitis A reactivation does not occur.
D. Hepatitis D coinfection, always self-limited
Coinfection occurs with acute HBV simultaneously, not in a known carrier.
Source note: Original NextPrep sample item — pending expert review. This item is original practice material awaiting independent expert review, so confirm important facts in a standard textbook.
More General Medicine questions
- EndocrinologyA 19-year-old with type 1 diabetes presents with vomiting, deep rapid breathing, fruity…
- ElectrolytesWhich is the earliest ECG change in hyperkalaemia?
- Infectious diseaseWhat is the drug of choice for Pneumocystis jirovecii pneumonia in a patient with advanc…
- NeurologyA chronic alcohol user is brought in confused, with nystagmus and an unsteady gait. What…