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14 maj 2024 · Two-step testing. If the first TB skin test result is negative, a second TB skin test should be done 1 to 3 weeks later. If the second TB skin test result is positive, it is probably a boosted reaction. Based on this second test result, the person should be classified as previously infected.
- Testing for Tuberculosis: Skin Test | Tuberculosis (TB) | CDC
The two-step TB skin test can lower the chance that a...
- Baseline Tuberculosis Screening and Testing for Health Care Personnel
Two-step testing is recommended for the initial TB skin test...
- Testing for Tuberculosis: Skin Test | Tuberculosis (TB) | CDC
A 2-Step TST is recommended for initial skin testing of adults who will be periodically retested, such as healthcare workers. A 2 step is defined as two TST’s done within 1month of each other.
The two-step TB skin test can lower the chance that a boosted reaction from an old TB infection will be misinterpreted as a recent infection. If the reaction to the first-step TB skin test is classified as negative, a second-step TB skin test is given one to three weeks after the first test is read.
Two-step testing is recommended for the initial TB skin test for adults who may be tested periodically, such as health care personnel. This procedure is especially important for settings that are classified as low risk where testing is indicated only upon exposure.
30 wrz 2022 · The document describes the WHO recommended tests, test procedures, a model algorithm, and the steps required to scale-up TB infection testing within a health programme.
30 wrz 2022 · The document describes the WHO recommended tests, test procedures, a model algorithm, and the steps required to scale-up TB infection testing.
The Mantoux tuberculin skin test (TST) is one method of determining whether a person is infected with Mycobacterium tuberculosis. Reliable administration and reading of the TST requires standardization of procedures, training, supervision, and practice.
