2) According to different inspection purposes, select specimen containers and calculate the required blood collection.
3) After blood collection, the syringe piston should be retracted to prevent needle blockage and syringe adhesion caused by blood coagulation.
4) If several blood samples are taken at the same time, attention should be paid to the injection sequence: generally, the blood is injected into the blood culture bottle first, then into the anticoagulant tube, and finally into the drying tube, and the action should be accurate and rapid.
5) When collecting blood culture specimens, aseptic operation should be strictly carried out to prevent pollution; The type and quantity of culture solution should meet the requirements, and the bottle stopper should be kept dry.
6) It is forbidden to take blood samples from the needle of infusion or blood transfusion or from the ipsilateral limb, and blood samples should be taken from the contralateral limb.