| tuberculin skin test |
A purified protein derivative of the tubercle bacilli, called tuberculin, is introduced into the skin by scratch, puncture, or intradermal injection. If a raised, red, or hard zone forms surrounding the test site, the person is said to be sensitive to tuberculin, and the test is read as positive. See Purified Protein Derivative.
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| tuberculin r. |
induration or vesiculation as a delayed reaction at the site of a tuberculin test (q.v.), a positive result.
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| tuberculin t. |
a skin test for tuberculosis using any of various different types of tuberculin and methods of application. See also intracutaneous tuberculin t. and tine t.
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| tuberculin u. |
an arbitrary unit of tuberculin dosage defined by comparison of clinical response with a standard preparation of PPD tuberculin.
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| tuberculin-type h. |
older name for delayed h.
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