NCLEX Practice Quiz on Tuberculin (Mantoux) Skin Test for Tuberculosis (TB) NCLEX Practice Quiz on Tuberculin (Mantoux) Skin Test for Tuberculosis (TB) The nurse is preparing to administer a tuberculin (Mantoux) skin test to a client suspected of having tuberculosis (TB). The nurse knows that the test will reveal which of the following?* 1. How long the client has been infected with TB 2. Active TB infection 3. Latent TB infection 4. Whether the client has been infected with TB bacteria Δ