Which action should a nurse take when performing medication reconciliation for a new client?

When performing medication reconciliation for a new client, the most critical action is to compare the client's home medications with the provider's prescriptions. This process involves reviewing the medications that the client has been taking prior to their admission and assessing them against the new medication orders to ensure safety, efficacy, and proper management of the client's health conditions.

This step is vital for identifying any discrepancies, potential drug interactions, or omissions that could affect the client's treatment plan. By thoroughly understanding what the client has been taking, the nurse can facilitate appropriate adjustments to the medication regimen and promote continuity of care.

The other actions, while potentially useful in the medication administration process, do not address the core purpose of medication reconciliation. Verifying the client's identification ensures accurate administration of medication but does not contribute to understanding their previous medication history. Calling the pharmacy can assist in confirming availability but does not establish what the client has been using. Securing home medication bottles might be a part of safety protocols but does not directly inform the reconciliation process.