This test uses a small "button" that has four to six short needles coated with TB antigens (tuberculin), either an old tuberculin or a PPD-tuberculin. The needles are pressed into the skin (usually on the inner side of the forearm), forcing the antigens into the skin. The test is then read 48 to 72 hours later by measuring the size of the largest papule or induration. Indications are usually classified as positive, negative, or doubtful. Because it is not possible to control precisely the amount of tuberculin used in the<unk> , a positive test should be verified using the Mantoux test.
Tine test
Reinsch test
Cover test
Rinne test
Stenger test
Tone decay test
Tensilon test
Thomas test