What must be completed as part of a drug use review for each patient upon receiving an Rx?

The correct answer focuses on the critical components required for a drug use review, specifically looking at over- and under-utilization of medications. A drug use review is an essential process in pharmacy practice that aims to evaluate patients' medication regimens to ensure their safety and effectiveness. This review helps identify potential medication-related problems and ensures that patients are receiving the appropriate pharmacotherapy for their conditions.

Monitoring for over- and under-utilization is key because it allows pharmacists to assess whether patients are taking their medications as prescribed and to identify cases where a patient may be taking too much or too little of a medication. This aspect of the review helps prevent adverse effects and therapeutic failures, ultimately contributing to better health outcomes.

Moreover, although other options like the patient's medication history, pharmacy inventory audit, and insurance verification are important components of pharmacy operations, they do not specifically pertain to the drug use review process in the same way as assessing medication utilization does. A complete medication history is helpful but does not directly correlate with the review focused on utilization, as it may show what medications a patient has used but not how they are using them currently.