What are the operating techniques for subcutaneous injection?

The most frequently chosen injection site: the lower border of the deltoid muscle of the upper arm.

There are two main methods of needle insertion in clinical practice: vertical needle insertion and oblique needle insertion.

Whether the needle is inserted vertically or obliquely, the successful technique is that the needle stalk should not penetrate more than 1/2-2/3. Otherwise, the depth is not easy to grasp, too shallow will increase the injection pain, and it is easy to form induration, too deep It enters the muscle layer and becomes an intramuscular injection.

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