Which of the following is NOT a method to assess a patient's response to medication?

Conducting interviews with family members is not a direct method to assess a patient's response to medication. While family members can provide valuable insights and observations regarding the patient's behavior and symptoms, it is not a primary method for evaluating the effects of medications. The other options listed—monitoring symptoms, asking for patient feedback, and performing follow-up evaluations—are all direct approaches to assess how a patient is responding to their treatment regimen.

Monitoring symptoms involves directly observing the changes in the patient's condition post-medication, which allows healthcare providers to evaluate therapeutic effectiveness or identify side effects. Asking for patient feedback enables the healthcare provider to gather the patient’s subjective experience with the medication, offering insight into how they feel and any issues they may be encountering. Performing follow-up evaluations involves scheduling additional assessments after the initial medication administration to track progress and make necessary adjustments to the treatment plan. Therefore, while input from family members can be useful in understanding a patient's overall environment and support system, it does not serve as a direct assessment method for medication response.