The Nurse Spent a Great Deal of Time Locating an Older

The nurse spent a great deal of time locating an older patient's right pedal pulse. What should the nurse do to ensure that future assessments of this pulse can be completed in a timely manner?

A) Mark the location with a felt-tipped pen.
B) Apply a gauze dressing over the location.
C) Tell the patient where the pulse is located.
D) Document the location in the medical record.