Final answer:
The phlebotomist should ask the patient if they wear hearing aids to ensure understanding during the blood draw procedure.
Step-by-step explanation:
By asking this question, the phlebotomist can address the potential distraction and make sure that the patient is able to hear and comprehend the instructions during the blood draw procedure. It is important for the phlebotomist to ensure clear communication with the patient to avoid any complications or misunderstandings.