Question

A 28-year-old woman develops a persistent cough for 3 weeks, night sweats, haemoptysis, and weight loss. Chest X-ray shows cavitation in the upper lobes. Which investigation confirms the diagnosis of active tuberculosis?

Accepted Answer

Sputum acid-fast bacilli microscopy and culture

Answer

Tuberculin skin test (Mantoux test)

Answer

Interferon gamma release assay (IGRA)

Answer

Bronchoscopy alone

Answer

CT chest with contrast

Practice question

A 28-year-old woman develops a persistent cough for 3 weeks, night sweats, haemoptysis, and weight loss. Chest X-ray shows cavitation in the upper lobes. Which investigation confirms the diagnosis of active tuberculosis?