Are you employing one of the standard methods for administering IM injections:
In the case of the air bubble technique (Pritchard and Mallett 1992, Taylor et al 1993), the person administering the injection
stretches the skin of the chosen site for injection between the thumb and forefinger and plunges the needle into this taut skin at
a right angle, penetrating to the muscle. The plunger is then pulled back gently to ensure that a blood vessel has not been
punctured, in which case blood appears in the syringe, the needle is withdrawn and the procedure started again. The medication
is then injected slowly into the muscle. The needle is withdrawn and the taut skin is released. A small amount of air is also
drawn up into the syringe before the medication is injected. This air will also be injected into the muscle following the medication
and should form an air lock in the muscle depot preventing the medication from seeping out along the needle track into other
subcutaneous tissue or onto the skin.
With the Z-track technique (Belanger 1985), the person administering the injection places the ulnar side of his or her
non-dominant hand distal to the chosen injection site. The skin is then drawn away from the site and held taut. The needle is
plunged into the skin at the original site while the skin is still held taut, aspirated to check that a blood vessel has not been
punctured and the medication injected slowly. After a few seconds the needle is withdrawn quickly and the taut skin released.
By initially drawing the skin away from the injection site, the skin and subcutaneous tissues are moved away from the muscle
which remains static. When skin and subcutaneous tissue are released after the injection they return to their original position
over the muscle. This return has the effect of breaking the needle track into the muscle because the track in the skin and
subcutaneous layers move away from the muscle as the taut tissues return to the original position. The medication should then
be locked in the muscle depot.
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