The triage nurse in the ed is assessing a patient who has presented with complaint of pain and swelling in her right lower leg. the patient's pain became much worse last night and appeared along with fever, chills, and sweating. the patient states, i hit my leg on the car door 4 or 5 days ago and it has been sore ever since. the patient has a history of chronic venous insufficiency. what intervention should the nurse anticipate for this patient?