Final answer:
A phlebotomist should consult the precautions listed on the isolation room door when drawing blood from a patient in isolation.
Step-by-step explanation:
When drawing blood from a patient in isolation, a phlebotomist should consult the precautions listed on the isolation room door. These precautions are specifically tailored to the patient in isolation and will outline any additional safety measures that need to be taken. It is important for the phlebotomist to follow these precautions to ensure the safety of both the patient and themselves.