What about static push?

Intravenous injection is a method of injecting liquid medicine into veins.

I) Purpose

1. Drugs should not be taken orally, subcutaneously or intramuscularly, and intravenous injection can be used when quick action is needed.

2. The drug has high concentration, great irritation and large dosage, which is not suitable for other injection methods.

& gt3. During diagnosis and examination, drugs are injected intravenously, such as X-rays of liver, kidney and gallbladder.

4. Infusion and blood transfusion

5. Used for intravenous nutrition therapy.

2) location

Commonly used basilic vein, median vein, cephalic vein with cubital fossa, or superficial vein on the back of hand, dorsum of foot and ankle.

3) Used things

Sterile syringe (selected according to the amount of liquid medicine), needle 6.2-7 or scalp needle, tourniquet, therapeutic towel or disposable paper towel in the injection tray. Prepare the medicine according to the doctor's advice

4) Operation method

1. Take the prepared items to the bedside, check them and explain them to the patient for cooperation.

2. Suck out the liquid medicine with a syringe, exhaust the air, and install the ampoule.

3. Choose a suitable vein, find out the direction and depth of the vein with your fingers, put a therapeutic towel or paper towel under the limb of the puncture site, tie a tourniquet about 6cm above the puncture site (near the heart), disinfect the skin with 2% iodine tincture, remove iodine with 70% alcohol after drying, and instruct the patient to make a fist to fill the vein.

4. During puncture, the thumb of the left hand tightens the skin at the lower end of the vein and fixes it, and the right hand holds the syringe with the needle inclined upward. The needle forms a 20-degree angle with the skin, then penetrates the subcutaneous layer from above or side of the vein and then sneaks in the direction of the vein.

5. See the blood, confirm that the needle has entered the vein, then inject a little needle along the vein, loosen the tourniquet, let the patient loosen his fist, fix the needle, and slowly inject the liquid medicine (

6. In the process of injection, if the local redness and pain indicate that the needle slipped out of the vein, the needle replacement part should be pulled out and re-injected.

7. After the injection, press the puncture point with a sterile cotton swab, quickly pull out the needle, and let the patient bend his elbow for a moment. Cleaning object

8. Take notes

1) thick, straight and elastic veins should be selected for injection. If long-term intravenous administration is needed, it should be injected from the far end to the near end.

2) According to the condition and drug properties, master the speed of injecting liquid medicine, and listen to the patient's chief complaint at any time to observe the signs and changes of his condition.

3) For drugs with strong stimulation to tissues, puncture should be performed before injection, and a small amount of isotonic saline should be injected, and then the drugs should be injected after the needle is confirmed to be in the blood vessel, so as to prevent the liquid from overflowing into the tissues and causing necrosis.

9. Causes of common failure of intravenous injection

1) The inclined plane of the needle is half inside the blood vessel and half outside the blood vessel, and the blood flows back intermittently, and when the drug is injected, it overflows under the skin, and the skin bulges, causing local pain to the patient.

2) The needle penetrated deeply, half of the inclined plane penetrated into the contralateral blood vessel wall, and blood returned, but the drug was not pushed smoothly, and some liquid medicine overflowed into deep tissue.

3) The needle penetrates too deeply and penetrates into the contralateral blood vessel wall, and the drug is injected into the deep tissue, causing pain and no blood return. If only a small amount of liquid medicine is injected, the local area may not necessarily bulge.

Common intravenous injection site