tuberculin /tu·ber·cu·lin/ (-lin) a sterile solution containing the growth products of, or specific substances extracted from, the tubercle bacillus; used in various forms in the diagnosis of tuberculosis; see also under test.
Tuberculin
tuberculin.
Old tuberculin (OT) a sterile solution of a heat-concentrated filtrate of tubercle bacillus culture grown on a special medium; used for tuberculin tests.
PPD tuberculin , purified protein derivative tuberculin a sterile solution of a purified protein fraction precipitated from a filtrate of tubercle bacillus grown on a special medium; used in tuberculin tests.
tu·ber·cu·lin (t -bûr ky -l n)n. A sterile liquid culture containing proteins of tubercle bacilli used chiefly in diagnostic tests for tuberculosis. |
Tuberculin
A mixture of antigens obtained from the cultured bacteria that cause tuberculosis, Mycobacterium tuberculosis.
Mentioned in: Tuberculin Skin Test
tuberculin.
See tuberculin test, tuberculosis.
tuberculin
a sterile liquid containing the growth products of, or specific substances extracted from the tubercule bacillus; used in various forms in the diagnosis of tuberculosis.
heat concentrated synthetic medium (HCSM) tuberculin
similar to old tuberculin, but grown on synthetic medium.
new tuberculin
a suspension of the fragments of tubercle bacilli, freed from all soluble materials and with glycerine added.
old tuberculin
a sterile solution of concentrated, soluble products of the growth of the tubercle bacillus, adjusted to standard potency by addition of glycerin and isotonic sodium chloride solution, final glycerin content being about 50%.
purified protein derivative (PPD) of tuberculin
a form of tuberculin used in the testing of animals for tuberculosis; abbreviated PPD. It is a soluble protein fraction prepared from a synthetic medium on which the Mycobacterium bovis has been cultured. It has the advantage of reducing the number and severity of the reactions caused by nonspecific sensitizing materials in the culture medium in old tuberculin.
tuberculin reaction
the prototype delayed or type IV hypersensitivity; typified by swelling and redness at the site of inoculation of tuberculin.
tuberculin tests
a number of tests for tuberculosis, based on the use of tuberculin as a test agent, are used in animals. A short thermal test using a large volume of tuberculin injected subcutaneously is used in special circumstances. Most of the tests use an intradermal injection and a local swelling as a positive reaction.
How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content.
| ?Page tools | ||
|---|---|---|
|