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Intramuscular injection, often abbreviated IM, is the injection of a substance into a muscle. ... 20 injections are given to administer drugs or other therapy. [6]
The term injection encompasses intravenous (IV), intramuscular (IM), subcutaneous (SC) and intradermal (ID) administration. [35] Parenteral administration generally acts more rapidly than topical or enteral administration, with onset of action often occurring in 15–30 seconds for IV, 10–20 minutes for IM and 15–30 minutes for SC. [36]
Intramuscular injections may cause fibrosis or contracture. [39] Injections also cause localized bleeding, which may lead to a hematoma. Intravenous injections may also cause phlebitis, especially when multiple injections are given in a vein over a short period of time. [40]
A narrow, high-pressure stream of liquid is made to penetrate the outermost layer of the skin (stratum corneum) to deliver medication to targeted underlying tissues of the epidermis or dermis ("cutaneous" injection, also known as classical "intradermal" injection), fat ("subcutaneous" injection), or muscle ("intramuscular" injection).
Drug injection is a method of introducing a drug into the bloodstream via a hollow hypodermic needle, which is pierced through the skin into the body (usually intravenously, but also at an intramuscular or subcutaneous, location).
Intramuscular: These vaccines are given at a 90-degree angle to the skin and are typically injected into the thigh or deltoid muscle of ... Subcutaneous injections are given at a 45-degree angle ...
RhIG can be administered by either intramuscular (IM) or intravenous (IV) injection, depending on the preparation. [34] The IM-only preparation should never be administered IV due to the risk of complement system activation. Multiple IM doses should be given at different sites or at different times within the 72-hour window.
An intramuscular injection of vaccines allows for a slow release of the antigen to stimulate the body's immune system and to allow time for developing antibodies. Subcutaneous injections are used by heroin addicts (called 'skin popping', referring to the bump formed by the bolus of heroin), to sustain a slow release that staves off withdrawal ...