by injecting the protein derived from tb bacteria itself
if the patient have already antibodies for tb from previous infection the immune system will response to this protein in the routine manner and form Ag-Ab complex which result in skin conditions of the immune response including inflammation and so on
It is often called a tuberculin skin test, or a Mantoux test.
Tuberculin skin test.
It is the Purified Protein Derivative tuberculin skin test.
Other names for a tuberculin skin test. PPD stands for purified protein derivative.
The only thing I've heard the skin test for tuberculosis called is the tuberculin skin test.
being near someone with tb
you can see your baby's pediatrician
imune complexes
An intradermal test for tuberculin sensitivity is performed by injecting a small amount of purified protein derivative (PPD) tuberculin into the skin on the forearm. The injection site is then checked for a reaction after 48-72 hours. A positive reaction, indicated by a firm, raised bump, suggests that the individual has been exposed to the bacteria that cause tuberculosis.
If you mean getting a TB Test, then it is intradermal (ID) which means between the layers of the skin.
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The small points of the instrument are either coated with dried tuberculin or are used to puncture through a film of liquid tuberculin. The test is read by measuring the size of the largest papule.