What is the 3HP regimen for latent TB infection?

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Multiple Choice

What is the 3HP regimen for latent TB infection?

Explanation:
This question tests knowledge of the short-course regimen for latent TB infection that uses a rifapentine–isoniazid combination given weekly for a fixed 12-week period. The key point is that 3HP is not daily or monthly, and it isn’t rifapentine alone; it combines weekly rifapentine with isoniazid for 12 weeks. This short course provides similar protection against progressing to active TB as longer isoniazid regimens but with better patient completion due to the limited duration. It’s commonly given with direct observation to ensure adherence and to monitor for hepatotoxicity, and clinicians consider potential drug interactions with certain HIV medications when deciding on use.

This question tests knowledge of the short-course regimen for latent TB infection that uses a rifapentine–isoniazid combination given weekly for a fixed 12-week period. The key point is that 3HP is not daily or monthly, and it isn’t rifapentine alone; it combines weekly rifapentine with isoniazid for 12 weeks. This short course provides similar protection against progressing to active TB as longer isoniazid regimens but with better patient completion due to the limited duration. It’s commonly given with direct observation to ensure adherence and to monitor for hepatotoxicity, and clinicians consider potential drug interactions with certain HIV medications when deciding on use.

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