Tips for removing intravenous catheters

An intravenous catheter, also called a cannula, is a common treatment method. It can alleviate the pain of patients undergoing long-term treatment and improve the efficiency of treatment. There are certain techniques for inserting and removing intravenous needles. Nurses must have some understanding of this aspect, which can improve work efficiency and avoid continued pain for patients.

Illustration of one-handed needle insertion and withdrawal techniques: 1. Choose thick, straight blood vessels that avoid joints and venous valves and have abundant blood flow. 2. Tie a tourniquet with moderate tightness, enough to fit a horizontal finger.

3. Spray disinfectant vertically 10 cm above the puncture site twice. 4. Loosen the needle core.

5. Puncture the blood vessel straight above it at an angle of 15-30 degrees and advance the needle slowly. 6. After seeing blood returning, lower the angle 5-10 degrees and continue to advance the needle 0.2 cm.

7. Hold the "Y" connector with your left hand and withdraw the needle core about 0.5cm with your right hand. 8. Hold the needle handle with your right hand and insert it into the blood vessel

9. Slowly insert the outer sleeve into the blood vessel. 10. Loosen the tourniquet, hold the "Y" interface with your left hand, and withdraw the needle core with your right hand.

Try not to choose blood vessels. 1. Blood vessels that appear thick but are actually as elastic and hard as tendons. 2. Do not choose a vessel whose blood vessels are shallow and elastic but very tortuous, or are located in a joint, or have venous sinuses. 3. The blood vessels are superficial but not elastic, there is relatively little subcutaneous fat, and the blood vessels slide and are not easy to fix. 4. Although the blood vessels of patients receiving long-term infusion appear to be clear, they are actually bluish purple in color, are not clear to the touch, and do not change color after pressing. When choosing blood vessels, try to follow the principle of first lower then upper, first far then near, and avoid joints and parts that are difficult to fix. For those who receive long-term infusions, consider making it convenient for patients to eat, take things, etc. Before placing an intravenous needle, you should fully assess the patient's condition. When the patient needs rapid or large amounts of fluid infusion, choose a needle of No. 22 or above. If the patient's blood vessels are relatively inelastic, twisted and small, and it is difficult to find superficial blood vessels, and rapid fluid infusion is not required, you can prepare a needle below No. 24. Intravenous needles must also be used according to the symptoms!