Final answer:
The phlebotomist should ask the nurse to show the proper technique.
Step-by-step explanation:
The phlebotomist should proceed by a) asking the nurse to show the proper technique. It is important to ensure that blood collection is done correctly to maintain the integrity of the samples and ensure accurate test results. By asking the nurse to demonstrate the proper technique, the phlebotomist can address the issue and ensure that future blood draws are performed correctly.