The tuberculin skin test measures which of the following?

The tuberculin skin test measures which of the following? a. delayed hypersensitivity reaction that follows exposure to the t

The tuberculin skin test measures which of the following? a. delayed hypersensitivity reaction that follows exposure to the tubercle bacillus. b. cell-mediated, type IV immune reaction that follows exposure to the tubercle bacillus. c. both a and b d. none of the above QUESTION 5 A positve reaction to the skin test means a. that the person definitely has active tuberculosis b. that the person has never been exposed to M. tuberculosis c. that the person should have a chest xray d. none of the above QUESTION 6 The most widely used drug for the treatment of tuberculosis is a. INH b. PZA c. Rifampin d. streptomycin