A 40-year-old man from a high-altitude region has cough for four weeks, night sweats and weight loss. The smear shows acid-fast bacilli. What is the standard initial regimen for drug-susceptible tuberculosis?
Answer and explanation
Correct answer: D. Isoniazid, rifampicin, pyrazinamide and ethambutol
- Step 1: The intensive phase uses four drugs for two months, followed by isoniazid and rifampicin. Answer: Isoniazid, rifampicin, pyrazinamide and ethambutol. Why not the others: Isoniazid and rifampicin only for six months, Rifampicin and streptomycin and Isoniazid and ethambutol don't fit.
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