Acute Hepatitis A — RACP Adult Medicine MCQ
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Correct answer: C — Hepatocellular injury
Markedly elevated transaminases (ALT and AST >10× ULN) with relatively normal ALP characterises hepatocellular injury. The R-factor (ALT/ALP, using ULN multiples) >5 confirms hepatocellular pattern. Positive hepatitis A IgM confirms acute hepatitis A. The elevated INR indicates impaired synthetic function, requiring monitoring for acute liver failure.
Reference: eTG Gastrointestinal – 2024 – Acute Hepatitis