What is the correct way to inject into the deltoid muscle?

Injection of the deltoid muscle is the main task of the vaccination clinic. Accurate positioning and selection of the appropriate site are the key to ensuring safe injection. So what is the correct method for deltoid muscle injection? The correct injection method for the deltoid muscle is to tighten the local skin with your left hand, fix the needle with your index finger, and hold the needle bevel upward at a 30 to 40 degree angle to the skin. Insert the needle two-thirds of the way into the skin, and draw back blood without returning. The angle should not exceed 45 degrees to avoid piercing the muscle layer.

Where is the injection site for the deltoid muscle of the upper arm?

1 First, strictly follow the following injection principles

(1) Carefully implement the checking system and do a good job of "three checks and seven comparisons";

(2) Strictly follow aseptic operation rules to prevent infection; (3) Choose the appropriate syringe, needle and correct injection site;

(4) Correct injection method: Master the “two fast and one slow” painless injection method and observe the drug reaction after injection.

2 Precautions for intramuscular injection in special circumstances

2.1 Intramuscular injection in children: Children's buttocks muscles are underdeveloped, and improper positioning can easily damage blood vessels and nerves. The injection site is where the tips of the index and middle fingers are placed in the triangle formed by the anterior superior iliac spine and the lower edge of the iliac crest. During the injection, the needle should be inserted vertically at a close distance, and the drug solution should be pushed in slightly faster to prevent the child from twisting and breaking the needle.

2.2 Cachexia patients have extremely consumed subcutaneous fat and thin muscle layers. When injecting, pinch the skin at the puncture site with your left hand and inject the drug slowly to prevent accumulation of the drug solution.

2.3 Patients with blood system diseases such as hemophilia and aplastic anemia have prolonged coagulation time due to the lack of coagulation factors and coagulation mechanism disorders. Generally, injection should be avoided as much as possible. If necessary, the pressing time of the puncture site should be prolonged after intramuscular injection and do not rub it.

2.4 Edema is common in patients with severe heart, liver, and kidney failure. Due to excessive fluid accumulation in the tissue gap, the skin becomes swollen and shiny. During the injection, press down with the index and middle fingers of the left hand to tighten the skin, insert the needle quickly, and press the needle eye hard after the injection to prevent leakage.

2.5 Obese people and injections of highly irritating drugs Obese people have a thick subcutaneous fat layer, and the drug solution injected into the fat layer is not easily absorbed, which affects the therapeutic effect. To reduce local irritation, highly irritating drugs should be injected deep into the muscle, generally with a No. 7 needle, and the drug solution should be injected without blood return.