The Difference Between Subcutaneous And Intramuscular Needles

The two methods of injection are different, the depth of injection is different, and the speed of absorption is different.

First, intradermal injection is to put the liquid medicine into the epidermis and dermis, like penicillin skin test, is intradermal needle, so the absorption is slower, even if allergy will be found in time. Subcutaneous injection is the injection of liquid medicine into the tissue under the skin, like vaccination is subcutaneous injection.

Second, intramuscular injection, in addition to the above skin test, inoculation, general drugs, in addition to the requirement of rapid absorption, or we require that the drug can not be quickly absorbed, because rapid absorption will have adverse effects, generally intramuscular injection. Intramuscular injections, intramuscular injections into the gluteus maximus, which is what we call the butt needle, the gluteus medius, the gluteus minimus, (this is where a child usually gets a shot because the gluteus maximus is not fully developed, so as not to damage the sciatic nerve), the vastus lateralis, the deltoid of the upper arm. Each one has a specific selection, not just a butt needle, which means you can hit anywhere in the butt, and it's positioned to avoid the major blood vessels and nerves.

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