You are attempting to assess a patient's AV fistula for a thrill. How is this done?

You auscultate the site of anastomosis with your stethoscope and listen for a rushing sound

You place a blood pressure cuff on the arm of the AV fistula to look for pulsations at the site

You want to palpate the site of anastomosis for a buzzing sensation

You check for capillary refill distal from the site of anastomoses