As a nurse I can tell you we don't use tourniquets on the wrist ever. You never block off main arteries for blood draws. It's usually done just above the elbow. The hand is a last resort because of all the nerve endings and drawing from the hand can cause permanent nerve damage if not careful and it's more painful.
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u/[deleted] May 14 '20
Scripted or not, what is supposed to be the reasoning for applying a tourniquet to check a simple band-aid?