Dr AILEEN THANKACHAN Kover 6 years ago

Tuberculin mantoux skin test. Intradermal injec.of 0.1 ml of tuberculin protein or ppd putrified protein derivative are inj. This produce atype 4 delayed hypersensitivity within area of more than 15 mm within 72 hrs. Thispostive test tell whether a pateint is infected withtubercule bacilli it doesn't tell whether pateint has LTB or progressed TB