Final answer:
The injection given to a patient receiving a tuberculin screening test is intradermal. A positive test is indicated by a raised red area called an induration, which is a result of the cellular immune response.
Step-by-step explanation:
The injection given to a patient receiving a tuberculin screening test is intradermal. This means that the injection is given into the layers of the skin, just below the surface. The tuberculin material is injected into the skin, and a positive test is indicated by a raised red area called an induration, which is a result of the cellular immune response.