Step Eight covers how to hold the client’s finger.

Step Eight Video Narration:

Once the site is cleaned, it can be 'primed' by placing your thumb and index finger on their finger at their last knuckle and, while keeping your finger in place, rock back and forth to get blood into the tip of the finger. In many cases, the finger will turn reddish purple. Milking the finger, as seen here, causes excess fluid to be drawn forward, diluting the blood and giving a false low reading. Need to get this footage. Once again, priming, which involves rocking back and forth over their last knuckle with your thumb and forefinger, is the key to getting blood into the tip of their finger.