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In this video, youâll learn how to test for TB infection by. administering and reading the Mantoux tuberculin skin test. The Mantoux tuberculin skin test should always be placed. and read by a designated, trained health care worker . Discuss skin test training, certification. programs, and requirements in your locality . In your work site: yWhat type of health care worker is. designated to place and read the skin.
The tuberculin skin test involves two steps: the injection of a small amount of purified protein derivative (PPD) solution under the first layer of skin of the forearm and an evaluation of the injection site conducted by a health practitioner at 48 and/or 72 hours to see if a local skin reaction has occurred.