Order of Draw (in hindi), Phlebotomy, blood collection, vacutainer, vacutainer tubes

theres a particular order of drawing the blood.
blood is collected
1. blood culture bottle
2. citrate tubes
3. red plain or yellow gel
4. heparin.
5. EDTA.
6. Fluoride.
citrate tubes are to be inverted 3 – 4 times.
they r used for hematology investigations.
plain tubes- blood has to clot, then serum separated.it consumes time.biochemical examinations done from this.

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