The Nurse Is Examining a Patient's Lower Leg and Notes

The nurse is examining a patient's lower leg and notes a draining ulcer.Which of the following actions is most appropriate in this situation?

A) Wash hands first,and then contact the physician.
B) Continue to examine the ulcer,and then wash hands.
C) Wash hands,put on gloves,and continue with the examination of the ulcer.
D) Wash hands,proceed with rest of the physical examination,and then go on to the examination of the ulcer.