What is the difference between hypodermic needle and intramuscular injection

Dr. T, vitiligo

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There are many kinds of injection methods, such as injection needle, is to inject the liquid medicine into the vein, this method is relatively fast absorption, achieve the speed of drug effect is also fast.

Then there are intramuscular, subcutaneous and intradermal injections.

Human tissues, from the outside in order to say, epidermis, dermis, subcutaneous tissue, muscle.

Intradermal injection is the injection of liquid medicine into the epidermis and dermis, like penicillin skin test, is intradermal needle, so 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.

Intramuscular injection, in addition to the skin test above, the inoculation, the general drug, except for those that are required to be absorbed very quickly, or, we require that the drug not be absorbed very quickly, because rapid absorption would have adverse effects, is usually injected intramuscular.

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.

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