Final answer:
The nurse should inject 0.1 mL of purified protein derivative (PPD) into the skin for the tuberculin skin test to screen for tuberculosis.
Step-by-step explanation:
The nurse should take the following action: C. inject 0.1 mL of purified protein derivative (PPD).
The tuberculin skin test involves injecting a small amount of PPD into the skin to test for a delayed hypersensitivity reaction, which indicates exposure to tuberculosis. The test is read after 48-72 hours, and a positive result is indicated by redness, swelling, or hardness at the injection site. The size of the reaction is measured to determine the final result. Therefore, the nurse should inject 0.1 mL of PPD to screen for tuberculosis.