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14 maj 2024 · The TB skin test (also known as the Mantoux tuberculin skin test or TST) is one method of determining whether a person is infected with TB bacteria. Reliable administration and reading of the TB skin test requires standardization of procedures, training, supervision, and practice.
10 kwi 2024 · CDC has free training materials on reading and administering the TB skin test. The Mantoux TB skin test toolkit includes a fact sheet, wall chart, video, and ruler.
23 kwi 2023 · Review Comparing interferon-gamma release assays with tuberculin skin test for identifying latent tuberculosis infection that progresses to active tuberculosis: systematic review and meta-analysis.
22 kwi 2024 · Some people with inactive TB, also called latent TB infection, have a negative reaction to the TB skin test when tested years after being infected. However, if they are tested again within a year of the first test, they may have a positive reaction.
8 sie 2022 · The BCG vaccine can cause false-positive TB skin test results, but its reactivity typically decreases over time. If a TB skin test is considered positive 5 years or more after the patient received the BCG vaccine, results likely are due to TB infection and require further diagnostic evaluation.
A reaction highly positive (induration diameter > 20 mm) or phlyctenular (with vesicle) should be considered as an argument in favour of active TB but is not enough to decide on treatment. Some persons may have a positive TST result even if they have not been infected with M. tuberculosis .
TB Test Interpretation. All skin swellings with an increase of more than 2mm in the thickness of the skin fold must be recorded as positive reactions, as should any swelling irrespective...
