What is the difference between subcutaneous injection, intramuscular injection and intravenous injection?

1. Intramuscular injection is a commonly used drug injection treatment method, which means that the liquid medicine is injected into the muscle tissue through a syringe to achieve the purpose of curing diseases. Not what circumstances can be intramuscular injection, such as in the injection site has induration, infection when it is not appropriate to do intramuscular injection treatment. Intramuscular injection is mainly suitable for: unfavorable or cannot do intravenous injection, the requirement is more rapid than subcutaneous injection when the curative effect, and injection irritation is stronger or the drug dosage is larger. Prior to intramuscular injection, do the relevant preparatory work. Including the positioning of the injection part and the preparation of related drugs and equipment.

2. Subcutaneous injection (pronounced PI xia zhu she) is the injection of liquid medicine into the tissue under the skin. The common injection sites are upper arm and lateral thigh. If insulin is taken orally in the gastrointestinal tract is easily destroyed by digestive enzymes, lose its effect, and subcutaneous injection is quickly absorbed.

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