A Nurse Is Caring for the Older Patient Who Had

A nurse is caring for the older patient who had knee replacement surgery 8 days ago.What assessment by the nurse is most important?

A) Determining whether the patient has sensation to the foot
B) Asking the patient to rate his or her current pain.
C) Observing the incision site for redness or drainage.
D) Monitoring the calf circumference on the affected side