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14 maj 2024 · 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
Negative TB skin test. A negative skin test result for TB...
- Testing for Tuberculosis: Skin Test | Tuberculosis (TB) | CDC
The TB skin test, also known as the tuberculin skin test, may be used to find out if you are infected with TB germs. A health care worker will use a small needle to inject testing fluid (called tuberculin) under the skin on the lower part of your inner arm.
Tuberculosis (TB) is a serious disease caused by a germ (bacteria) that spreads through the air when a person with untreated TB disease of the lungs coughs, sneezes, sings or talks. TB usually affects the lungs but can also affect other parts of the body like glands, bones, joints, kidneys, the brain and reproductive organs. TB is curable.
22 kwi 2024 · Negative TB skin test. A negative skin test result for TB infection means inactive TB or active TB disease is unlikely, but your health care provider may do more tests, especially if: You have symptoms of active TB disease, like. Coughing, Chest pain, Fever, Weight loss, or tiredness. You have HIV. You were recently exposed to TB germs.
If the TST is negative, advise the patient about repeat testing, if applicable. If the TST is positive: • Advise the patient that they should never have another TST. • Provide teaching about LTBI. • Reassure patient that they are not infectious and cannot transmit tuberculosis to others.
Multiple puncture tests should not be used as these tests are unreliable (because the amount of tuberculin injected intradermally cannot be precisely controlled). This annex describes how to administer, read and interpret a TST using 5 tuberculin units (TU) of tuberculin PPD-S.
Targeted Tuberculin Testing and Interpreting Tuberculin Skin Test Results. This fact sheet provides information on targeted tuberculin testing. It explains how to interpret tuberculin skin test (TST) results, including special considerations.
