- Intramuscular injection
Intramuscular injection is the injection of a substance directly into a
muscle . Inmedicine , it is one of several alternative methods for the administration ofmedication s (seeRoute of administration ). It is used for particular forms of medication that are administered in small amounts. Depending on the chemical properties of the drug, the medication may either be absorbed fairly quickly or more gradually. Intramuscular injections are often given in the deltoid,vastus lateralis , ventrogluteal and dorsogluteal muscles.Complications and contraindications
When the
gluteal muscles are used, injections should be made on the upper, outer quadrant of thebuttock to avoid damaging thesciatic nerve .Injection fibrosis is a complication that may occur if the injections are delivered with great frequency or with improper technique.Thrombocytopenia (lowplatelet counts) andcoagulopathy (bleeding tendency) arecontraindication s for intramuscular injections, as they may lead tohematoma s.Uses
Examples of medications that are sometimes administered intramuscularly are:
*codeine
*methotrexate
*metoclopramide
*olanzapine
*Streptomycin
*diazepam
*prednisone
*Interferon beta-1a
* sex hormones, such astestosterone ,estradiol valerate , andDepo Provera
*dimercaprol
*ketamine
*lupron
*naloxone
* quinine in itsgluconate formIn addition, some
vaccine s are administered intramuscularly:*
Gardasil
*hepatitis A vaccineAlso certain substances (i.e.
ketamine ) are injected intramuscularly for recreational purposes.External links
*
* [http://www.simmed.com/Demo/Default.aspx Animated Intramuscular Injection tutorial]
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