In a task delegation scenario, which activity would typically require the involvement of a registered nurse rather than assistive personnel (AP)?

The activity that requires the involvement of a registered nurse over assistive personnel is the assessment of a client's response to new medications. This task is critical as it involves clinical judgment and expertise that only a registered nurse possesses due to their extensive training and understanding of pharmacology, patient assessment, and the implications of medication effects on health.

When medications are changed or introduced, it's essential to monitor and evaluate the client's physiological and psychological responses to ensure safety and effectiveness. Registered nurses are trained to recognize adverse reactions, manage side effects, and communicate any findings to the healthcare team to adjust treatment plans accordingly. This level of assessment is more complex and requires a deep understanding of the medication’s purpose, potential interactions, and the client’s overall health status, which are beyond the scope of practice for assistive personnel.

In contrast, bathing a stable client and taking dietary restrictions are tasks that can be performed by assistive personnel as they do not require the same level of clinical assessment and critical thinking. Executing prescribed medication changes also involves an understanding of the medication’s purpose and potential effects, yet it usually falls within the nursing responsibilities, particularly in terms of monitoring the client’s response post-administration, which makes the first response even more essential.