Which scenario qualifies as a contamination event that should prompt pharmacy consultation with infection prevention?

• A. A recalled drug due to intrinsic contamination
• B. A drug past the discard date being used
• C. An expired drug being used
• D. Unmonitored refrigerator temperature over the weekend

Answer: (A)

Intrinsic contamination in a drug creates a direct infection risk for patients, so the pharmacy team should immediately engage infection prevention. When a drug is recalled because of intrinsic contamination, it signals that the product itself could harbor pathogens or harmful substances, and any patient exposure could potentially lead to infection. Pharmacy and infection prevention collaborate to contain the event: quarantine the affected lot, halt distribution, notify regulatory bodies as required, perform a thorough traceback to identify patients who may have been exposed, and determine whether post-exposure prophylaxis or enhanced surveillance is needed. This coordinated response aims to stop further exposure and monitor for infections linked to the contaminated product.

Using a drug past its discard date or an expired drug raises potency and safety concerns but does not by itself indicate a contamination event needing infection prevention consultation. A refrigeration-temperature excursion signals a storage control lapse that could affect product quality, but it is not evidence of contamination in the product itself.