Difficulty: Medium
Average Score: 79%
Simulated
The nurse is discussing the results of a tuberculosis skin test. Which explanation should the nurse provide the client?
Correct answer
C
Rationale
A positive TB skin test (C) indicates exposure to TB bacilli, not active disease, requiring further testing (e.g., chest X-ray). Redness alone (A) is not diagnostic; induration is measured. The skin test (B) is not definitive for diagnosis. Annual testing (D) may be needed in high-risk groups.