Pharmacy Technician Certification Exam Practice Question

Correct Answer: C

Rationale: Ingesting an expired medication primarily leads to the risk of a deteriorated drug, which may have reduced efficacy or altered safety profiles due to degradation over time.

Option A, unauthorized drug, refers to medications taken without proper prescription or approval, which is not applicable here. Option B, monitoring errors, pertain to oversight in tracking a patient's response to medication, rather than the issues stemming from expiration. Option D, omission, involves failing to administer a necessary medication, which does not relate to the consequences of taking an expired drug. Thus, the focus on the deterioration of the drug is essential for patient safety.