A healthcare worker develops fever, night sweats, and cough. Sputum shows acid-fast bacilli. What is the next diagnostic test?
AGram stain
BSerology for TB
CNAAT for TB
DSputum culture
Why is a regimen of four drugs recommended for a TB patient on the first visit?
ATo prevent emergence of drug-resistant strains
BTo reduce bacterial load effectively
CTo minimize treatment duration
DNone of the options
A patient presents with hemoptysis, weight loss, and fatigue. Chest X-ray shows cavitary lesions in the upper lobes. What is the most likely diagnosis?
ALung abscess
BPulmonary embolism
CBronchiectasis
DTuberculosis
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