Injection method of insulin Insulin should be taken out of the refrigerator half an hour before injection, and then injected when the temperature of the liquid medicine is close to room temperature. Operators must wash their hands before injection, and prepare insulin bottles, syringes and alcohol cotton balls for injection. When injecting short-acting insulin, the bottle cap of the injection should be disinfected with alcohol cotton ball first, then the air equivalent to the required amount of insulin injection should be sucked out by the syringe and injected into the insulin bottle, then the insulin bottle should be inverted with the left hand and the insulin should be sucked out with the right hand. If medium or long-acting insulin is injected, put the insulin injection bottle flat on the palm of your hand, hold the bottle with both hands and roll it back and forth for about ten times to fully mix the liquid medicine in the bottle. After selecting the injection site according to the method of injecting short-acting insulin, disinfect the skin with alcohol cotton balls. When the alcohol is completely dried, hold the skin of the injection site with one hand for about 65438 0 inches, and pierce the injection site with the other hand at a 45-degree angle to push the injection. The needle should stay under the skin for about 10 second, and then pull it out. Do not rub the injection site. Don't inject too many times in the same part and the same acupoint, and use them alternately to avoid subcutaneous fat malnutrition. Whether it is a special syringe or a pen needle, you should use it once. Repeated use will blunt the needle, produce gaps and barbs that are imperceptible to the naked eye, increase pain, and even have the risk of needle breakage and skin infection. Always press the injection site with your fingers for induration and pain. If it is serious, consult a professional medical staff and avoid these parts when injecting. If the occasional meal time is advanced, choose a place five centimeters outside the belly button; If it is postponed, choose hip injection.