A 40-year-old nurse is undergoing baseline screening for tuberculosis before working in a tertiary care hospital. She is BCG-vaccinated, has no sympto...

Question

A 40-year-old nurse is undergoing baseline screening for tuberculosis before working in a tertiary care hospital. She is BCG-vaccinated, has no symptoms and normal chest radiograph. According to Canadian TB screening guidance, what is the preferred initial test for latent TB infection in this context?

Accepted Answer

Interferon-γ release assay (IGRA) or tuberculin skin test (TST) depending on local policy

Answer

Sputum microscopy for acid-fast bacilli

Answer

Serum TB antibody testing

Answer

No screening is required for health-care workers

Answer

Bronchoscopy with lavage

ca-mccqe1 MCQ (SBA): Latent tuberculosis screening