I currently work at a independent living facility for seniors. We have a doctor makes house calls to the residents in their apartments. When he needs blood drawn from the residents, he has his medical assistants draw the blood. I have witnessed quite a few blood draws and I noticed that his medical assistants leave the tourniquet on until after they are done filling up the vials. Is this because of the decreased circulation? When I went through school I was taught to pop the tourniquet after I established blood flow. And when his medical assistants start drawing the blood, I can clearly see that they established blood flow. Is the use of a tourniquet different on a geriatric patient? Please help!! Ive tried researching it, but my search has came up empty!!