7/12/2023 0 Comments Im injection5Īspiration before injection and slow injection of the medication are not required for vaccine administration. When possible, IM injections should not be administered in muscles that are emaciated or atrophied because they absorb medication poorly. 2, 5 IM injection sites should be rotated to decrease the risk for hypertrophy. IM injections should be administered with the needle perpendicular to the patient’s body or as close to a 90-degree angle as possible. 2, 7 The needle must be long enough to reach the muscle tissue but not too long to present the risk of hitting underlying neurovascular structures or bone. 2, 5 The appropriate needle length is determined by the patient’s age and weight, injection site, and the amount of adipose tissue in the chosen injection site. The needle is inserted at a 90-degree angle this varies from the angle used for subcutaneous and intradermal injections ( Figure 1). Any factor that interferes with local tissue blood flow affects the rate and extent of drug absorption.Īn IM injection may require a longer and larger-gauge needle to penetrate deep muscle tissue. This rich blood supply, however, increases the risk for injecting drugs directly into blood vessels. The IM injection route deposits medication into deep muscle tissue, which has a rich blood supply, allowing medication to be absorbed faster than it would be by the subcutaneous route. Take steps to eliminate interruptions and distractions during medication preparation. Take extra care with a patient who takes medications that increase the risk for bleeding. Consider contacting the practitioner for an alternative, preferred route of medication administration. Intramuscular (IM) injections have been associated with adverse effects and pain, and this route of medication injection should be used as a last resort. Medication Administration: Intramuscular Injections (Ambulatory) - CE ALERT
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