Venous blood collection is a basic operation skill of nurses. It is often used to provide doctors with a basis for treatment when patients are admitted to the hospital for routine examination and rescue. In the past year, a disposable vacuum blood collection device has been used instead of a disposable syringe for blood collection. The disposable vacuum blood collection needle assembly is referred to as blood collection. The blood collection needle at the top is used to puncture the blood vessel, the transparent hose at the end is connected to the tail needle, the tail needle is wrapped by a rubber hose, and the needle cap is covered, which is used to pierce the vacuum blood collection test tube, and the negative pressure in the test tube is used to Blood is drawn into the tube.

User's guidance:
(1) Read the manufacturer's instructions carefully before using the vacuum blood collection device, and operate in strict accordance with the requirements of the instructions.
(2) Try to choose a thick vein for puncture.
(3) The latex cover at the end of the puncture needle can prevent the blood collection tube from continuing to bleed and contaminate the surrounding area after removing the blood collection tube, so as to achieve the effect of sealing blood collection to prevent environmental pollution. Therefore, the latex cover cannot be removed.
(4) The puncture end with the latex sleeve must be punctured vertically from the center of the rubber stopper of the vacuum blood collection tube.
(5) After the blood collection is completed, first pull out the blood collection test tube at the puncture end and then pull out the puncture needle.
(6) Do not loosen the cap of the disposable vacuum blood collection test tube before use to prevent inaccurate blood collection.
(7) If several specimens are required to be collected at one time, blood should be collected in the following order: blood culture tube, tube without anticoagulant and additives, blood coagulation tube, tube with anticoagulant.



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