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After venous blood drawing, do not knead but press to stop bleeding, and continue to press evenly. Rubbing the needle eye can not only stop bleeding, but also accelerate bleeding; Pressing to check whether there is bleeding not only affects the hemostasis speed, but also easily leads to congestion.

In addition, immediately after blood drawing, press the needle eye with a sterile cotton swab or cotton ball, and the pressing position is about 0.5 cm above the needle eye of the skin, as far as possible consistent with the direction of blood vessels. When pressing, the elbow is straight. This presses both the eye of the needle of the skin and the eye of the needle of the blood vessel.

You can't bend your arm after drawing blood.

When you bend your elbow, it hinders the venous return of your elbow, thus increasing the intravascular pressure of the elbow vein, so blood can easily seep out of the needle eye of the blood vessel and form subcutaneous congestion, that is, the congestion at the blood drawing site you see.

The pressing force of forearm elbow flexion mainly depends on the elbow angle formed during elbow flexion. The pressing area is large, and the force on the puncture point is small, especially for patients with thin subcutaneous fat muscle. Due to lack of tissue support, the local force on the puncture point is small, and the probability of complications is high.

The research shows that the forearm elbow pressing method can fix the pressing position, the cotton swab fixation is not easy to shift, the force on the puncture point is uniform, and the pressing position can be directly observed with few complications.

Xiaoxiang morning herald-How to press correctly after venous blood collection? Come and learn the correct posture!