Which of the following actions does NOT require the use of a safety needle device?

The action of adding a medication to a diluent for infusion does not require the use of a safety needle device because this process typically involves using a syringe and a vial that can be accessed in a way that minimizes risk. Safety needle devices are primarily designed to reduce the risk of needlestick injuries when there is direct contact with a patient’s body fluids or when drawing blood.

In contrast, withdrawing blood, injecting medication via an IV line, and administering vaccines all involve direct interaction with contaminated materials or the potential for exposure to blood or body fluids, which is why they necessitate the use of safety needle devices. These devices provide mechanisms for retracting the needle or shielding it after use, significantly helping to protect healthcare workers from needlestick injuries and the associated risk of bloodborne pathogens.