Essential Facts on the Go: Internal Medicine (32 page)

VII_3_a
Tuberculosis

TB treatment (immunocompetent) Latent

INH/B6 × 6-9 months

Check LFTs monthly (INH)

Active

• Start with

R - rifampin

I - isoniazid

P - pyrazinamide

E - ethambutol

- Until sensitivity is known

- Consult an ID physician

PPD considered postive if

• > 5 mm in

Immunocompromised individuals

Close contacts with TB patients

• > 10 mm in

High-risk workers (healthcare, prison)

Endemic area

Chronically ill patients

• > 15 mm in

Healthy individuals

Also consider interferon gamma testing