How to use blood collection needle

Blood collection needle to use, and the blood specimen tube supporting as shi pin, first to choose the right blood vessels, generally is the center of the elbow vein, (is the middle of the elbow and can touch) selected coarse straight dozen of blood vessels, and then for regular disinfection, pull the cap, a tourniquet, can puncture, see after h., tourniquet, (needle handle need not fixed, Can't run needle) blood collection needles on the other side make the hand directly into the specimen of rubber stopper nozzle (blood specimens with negative pressure in the management, oneself ran into), for the blood flow, dial needle puncture blood vessels, then dial nozzle needle, instruct patients pressure for 5 minutes, do not knead, blood slowly transferred to the prestigious shaking under 6, finished.

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