What are the common causes of venipuncture failure? How to judge and deal with it

1. The inclined plane of the needle did not completely enter the blood vessel, and some liquid medicine overflowed under the skin.

Judgment: There is a bulge in the blood transfusion needle.

Quickly pull out the needle by the handle and hold it for a few seconds to reselect blood vessel puncture.

2. The inclined plane of the needle penetrates the contralateral blood vessel wall, and part of the liquid medicine overflows the deep tissue.

Judgment: There is blood return, no local swelling is found.

Quickly pull out the needle by the handle and hold it for a few seconds to reselect blood vessel puncture.

3. The needle pierces the blood vessel wall and the liquid medicine overflows the deep tissue.

Judgment: no blood return, local swelling complaining of pain.

Quickly pull out the needle by the handle and hold it for a few seconds to reselect blood vessel puncture.