What is the fundamental purpose of medication reconciliation, and at which transitions of care should it occur?

• A. To ensure medications are fully reconciled only at discharge.
• B. To ensure each patient's medications are accurate and complete across transitions; occur at admission, transfer between care settings, and discharge.
• C. To reduce paperwork by excluding nonprescribed meds.
• D. To verify patient identity before each dose.

Answer: (B)

Medication reconciliation is a formal process to ensure that a patient’s medication list is complete and accurate across all points of care, and to resolve any discrepancies that could lead to harm. It aims to keep all medications—not just prescriptions but also over-the-counter drugs, supplements, and herbal products—up to date, with correct doses, routes, and frequencies, and to communicate those details clearly to the next care team and to the patient.

This should happen at key transitions: when a patient is admitted to a new care setting, during transfers between settings (such as from hospital to another facility or to home), and at discharge. At each of these moments, the medication list is obtained, verified, compared with what is being prescribed, discrepancies are identified and resolved, and a clear plan with an up-to-date list and instructions is handed off.

Other options miss the essence: reconciling only at discharge overlooks errors that can occur on admission or during transfers; excluding nonprescribed meds ignores important contributors to safety because OTCs and supplements can interact with prescriptions; and simply verifying patient identity before each dose is a separate safety check and does not address maintaining an accurate, complete medication list across care transitions.