Select the cоrrect аnswer: A 65-yeаr-оld аdult with a10-year histоry of hypertension presents to a new primary care nurse practitioner for a Welcome to Medicare visit. The patient has complaints of cramping leg pain when walking to the mailbox or grocery shopping. The pain intensity during these events is rated as 8 of 10. The pain resolves with rest and leg elevation. The patient reports a 50-year history of smoking cigarettes and smoked prior to this visit. The patient has no known drug allergies. Current medications: hydrochlorothiazide 12.5 mg po daily. amlodipine (Norvasc) 5 mg po daily Physical exam: Vitals: 142/84; pulse 82 and regular; respirations 22 and regular; BMI 20.2 kg/m2 General: alert and oriented; obvious smell of cigarette smoke. HEENT: AV nicking noted; carotids 2+ without bruit Cardiac: S1/S2, regular rate and rhythm Chest: barrel chested; breath sounds clear but diminished Abdomen: unremarkable; no bruit Extremities: Nails thickened, foot dry, skin shiny, no hair noted below the level of the knee. No edema in noted. Right leg is ruborous when dependent and shows pallor when elevated. Left leg shows pallor. Pedal pulses 1+. Based upon these findings, which of the following interventions should the nurse practitioner next incorporate into this patient's diagnostic/management plan?