Final answer:
Out of the options provided, a phlebotomy technician should identify the patient with low iron levels as able to donate blood. The correct answer is option b).
Step-by-step explanation:
In order to determine which patients are able to donate blood, a phlebotomy technician must consider various factors. Out of the options provided, the patient who is able to donate blood is the one with low iron levels (Answer b). Patients with a recent fever (Answer a) are usually not allowed to donate blood as it may indicate an ongoing infection.
Patients with a recent vaccination (Answer c) may need to wait for a certain period of time before donating blood to ensure that there are no adverse reactions. Patients with a history of bloodborne diseases (Answer d) are usually not eligible to donate blood for the safety of both the donor and the recipient. A phlebotomy technician assessing potential blood donors should be aware of eligible criteria for blood donations.