A client develops a positive reaction to an injection of purified protein derivative, a screening measure for exposure to tuberculosis. The nurse records this reaction as a
A) type 1 reaction.
B) type 2 reaction.
C) type 3 reaction.
D) type 4 reaction.

Question

Quizplus · Accepted Answer

Type 4 reactions occur after the intradermal injection of tuberculosis antigen or purified protein derivative. If the client has been sensitized to tuberculosis, sensitized T cells react with the antigen at the injection site.

A Client Develops a Positive Reaction to an Injection of Purified