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HBV Reactivation Rituximab — RACP Adult Medicine MCQ

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ModerateInfectious DiseasesHBV Reactivation RituximabRACP Adult Medicine

A 55-year-old man with chronic hepatitis B on entecavir requires rituximab for lymphoma. What is the critical risk?

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Correct answer: BHBV reactivation – continue antiviral throughout + 12–18 months after rituximab cessation

Rituximab: very high HBV reactivation risk (50–80% without prophylaxis). Continue antiviral throughout + ≥12–18 months post last rituximab. Monitor HBV DNA.

Reference: eTG – 2025; AASLD – 2018