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1 :

Hint : 🫁BCG can alter skin-test results.

Correct Answers:

  • QuantiFERON-TB Gold


Rationale :

✏️ QuantiFERON-TB Gold is an interferon-gamma release assay used to detect immune sensitization to Mycobacterium tuberculosis.

✏️ This blood test is preferred for a client who previously received the BCG vaccine because BCG does not cause a false-positive QuantiFERON result.

✏️ In contrast, the BCG vaccine can cause a false-positive Mantoux skin test, making the result more difficult to interpret.

✏️ QuantiFERON testing requires only one visit and does not require the client to return within 48 to 72 hours for interpretation.

✏️ A positive result indicates TB infection and requires additional evaluation to distinguish latent TB infection from active TB disease.


Distractor Analysis :

Rationale for Incorrect Options to be Available Soon

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