1. The specific location of the upper arm deltoid muscle is the anterior muscle bundle from the lateral half of the clavicle, the middle muscle bundle from the peak of the shoulder, the posterior muscle bundle from the shoulder plateau, ending at the humeral deltoid muscle.
2. The outer part of the upper arm deltoid muscle is more abundant, so clinically this part is often chosen as a reliable site for intramuscular injection, which is favorable for the absorption of the injection solution, and the deltoid muscle avoids some important blood vessels and nerves, so the relative risk of injection is also small.
3. Specific injection method, first of all, the muscle should be in a relaxed state, avoid too much tension, when injecting, the upper limb should be down so that the deltoid muscle is in a state of relaxation, the needle tilted upward, the depth of puncture to 3cm or so is appropriate. Pump the piston to make sure there is no blood return before injecting the drug into the muscle.
During the operation, pay attention to the verification of patient information and drug information expiration date, pay attention to the aseptic operation, and after the operation, advise the patient to press for a moment to stop bleeding.