While giving an intramuscular Z-track injection of an iron preparation, you have pulled the skin laterally and inserted the needle at a 90° angle into the muscle. To continue the technique safely, which action should you take next?
Release the displaced skin over the needle track before injecting the medication.
Gently aspirate for 5-10 seconds to be sure the needle is not in a blood vessel.
Inject the medication slowly, then wait 10 seconds before withdrawing the needle.
Massage the injection site firmly to disperse the medication.
Immediately after inserting the needle for a Z-track injection, aspirate by gently pulling back on the plunger for 5-10 seconds. A lack of blood return confirms the needle is not in a blood vessel. Only then should the drug be injected slowly; keeping the needle in place for about 10 seconds before withdrawal and then releasing the displaced tissue seals the track and helps prevent staining or leakage. Releasing the skin too early, massaging the site, or omitting aspiration can all increase the risk of tissue irritation or accidental intravascular administration.
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Why is the Z-track method used for intramuscular injections?
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