After a positive TB test result, what is the recommended next step?

After a positive TB test result, what is the recommended next step?

• A. Initiate treatment immediately
• B. Further testing to determine latent vs active
• C. Quarantine the patient
• D. Do nothing unless symptoms develop

Answer: (B)

When a TB screening test is positive, the test alone can’t tell whether the person has latent TB infection or active TB disease. The next step is to evaluate for active disease while also planning appropriate prevention if it’s latent. This involves assessing for symptoms such as a persistent cough, fever, night sweats, and weight loss; obtaining a chest X-ray to look for signs of active pulmonary TB; and collecting sputum samples for microscopic examination and cultures if active disease is suspected. If symptoms are absent and the chest X-ray is clear, the person is considered to have latent TB infection and can begin latent TB treatment as indicated. Initiating treatment right away without ruling out active disease isn’t appropriate because the treatment approaches differ and active TB requires specific, usually longer, therapy to prevent spread and complications. Quarantine isn’t automatic from a positive test alone; isolation is used when active TB is confirmed and contagious. Doing nothing isn’t appropriate because a positive test indicates infection risk that needs evaluation.

When a TB screening test is positive, the test alone can’t tell whether the person has latent TB infection or active TB disease. The next step is to evaluate for active disease while also planning appropriate prevention if it’s latent.

This involves assessing for symptoms such as a persistent cough, fever, night sweats, and weight loss; obtaining a chest X-ray to look for signs of active pulmonary TB; and collecting sputum samples for microscopic examination and cultures if active disease is suspected. If symptoms are absent and the chest X-ray is clear, the person is considered to have latent TB infection and can begin latent TB treatment as indicated.

Initiating treatment right away without ruling out active disease isn’t appropriate because the treatment approaches differ and active TB requires specific, usually longer, therapy to prevent spread and complications. Quarantine isn’t automatic from a positive test alone; isolation is used when active TB is confirmed and contagious. Doing nothing isn’t appropriate because a positive test indicates infection risk that needs evaluation.