Final answer:
The nurse should plan to assess a client's sacrum for edema, as this task involves assessment skills, which are within the scope of practice for nurses and not assistive personnel.
Step-by-step explanation:
The student has asked which tasks a nurse should plan to perform when working with an assistive personnel (AP). The key responsibilities of a registered nurse include assessment, planning, implementation, and evaluation of patient care.
Therefore, out of the tasks listed, the nurse should plan to assess a client's sacrum for edema. This is because assessment is within the scope of practice for nurses and not for assistive personnel such as nursing aides, who can help with more routine tasks like the application of antiembolic stockings or assisting clients with coughing and deep breathing. Administration of an enema might fall within the AP’s abilities if they have been trained and delegated that task in some jurisdictions, but it is primarily the nurse's accountability to perform tasks that require clinical judgement and assessment skills.