Tuberculosis: Skin and Blood Tests

Tuberculosis: Skin and Blood Tests is a topic covered in the Davis's Lab & Diagnostic Tests.

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Synonym/Acronym:
TST, TB tine test, PPD, Mantoux skin test, QuantiFERON-TB Gold blood test (QFT-G), QuantiFERON-TB Gold In-Tube test (QFT-GIT), T-SPOT.TB test (T-SPOT).

Rationale
To evaluate for current or past tuberculin infection or exposure.

Patient Preparation
There are no food, fluid, activity, or medication restrictions unless by medical direction.

Normal Findings
Method: Intradermal skin test, enzyme-linked immunosorbent assay (ELISA) blood test for QuantiFERON assays, enzyme-linked ImmunoSpot (ELISPOT) for T-SPOT.TB test. Negative.

Critical Findings and Potential Interventions

  • Positive results

Timely notification to the requesting health-care provider (HCP) of any critical findings and related symptoms is a role expectation of the professional nurse. A listing of these findings varies among facilities.

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