Method of collecting venous blood with vacuum blood collection tube

The commonly used vacuum blood collection tubes and venous blood collection needles simplify the blood collection work and ensure the accuracy of the test results to a certain extent. When using a vacuum blood collection tube for blood collection, first check whether the needle holder and the venous blood collection needle are firmly fixed, so as to prevent the venous blood collection needle from passing through the blood vessel when the blood collection tube is inserted. For blood vessels that are difficult to puncture, it is difficult to judge whether the blood collection needle has penetrated the blood vessel. At this time, after inserting the blood collection tube, the blood collection needle can be used as a syringe to probe the blood vessel. When using a vacuum blood collection tube, pay attention to the blood collection sequence: when collecting blood from multiple tubes, the coagulation time is collected first, followed by the blood routine. The last blood collection is biochemical, and the last tube of blood should be removed after the blood collection tube is removed to prevent blood reflux.