1) Do not use if the protective cap is loose or falls off.
2) For personal safety, do not reuse the blood collection needle.
3) Do not share the same blood collection needle with others to prevent cross infection.
4) Blood collection needle fixation problem: press the connecting tube with the little finger or stick the tape to one-third of the connecting tube. If conditions permit, try to insert the tip of the blood collection needle into the blood vessel.
5) Tube bounce problem: To prevent tube bounce, hold the blood collection tube with one hand and the tail end of the blood collection needle with the other hand.
6) Breakout problem: Gently press the puncture point with a cotton swab or needle back sticker to prevent breakout.
7) Occasionally, the blood flow rate is very slow during use. It may be that the negative pressure of the vacuum blood collection tube is not enough, the patient's blood is thick, the blood pressure is low, and the blood vessel wall blocks the needle hole of the blood collection needle.