NHA Certified Clinical Medical Assistant (CCMA)Clinical Patient CareMedium
A medical assistant is preparing to administer an intramuscular (IM) injection to an adult patient. The medication insert specifies a Z-track injection technique. Which of the following actions should the medical assistant take to perform this technique correctly?
- APull the skin and subcutaneous tissue laterally or downward before injection.
- BAspirate for blood return before injecting the medication.
- CInject the medication slowly over 30 seconds.
- DMassage the injection site vigorously after withdrawing the needle.
Show answer & explanationAnswer & explanation
Correct answer: A. Pull the skin and subcutaneous tissue laterally or downward before injection.
The Z-track method involves pulling the skin and subcutaneous tissue laterally or downward prior to injection. This creates a zigzag path that prevents medication leakage into the subcutaneous tissue and seals the medication within the muscle.
Why the other options are wrong
- B. Aspiration is not always recommended for IM injections and is not a defining characteristic of the Z-track method.
- C. Injecting slowly is good practice for patient comfort but not specific to the Z-track technique for preventing leakage.
- D. Massaging the site is contraindicated with the Z-track method as it can push medication into the subcutaneous tissue.
Z-track Injection Technique
A method of intramuscular injection used to prevent leakage of medication into the subcutaneous tissue.
- Prevents medication leakage into subcutaneous tissue.
- Seals medication within the muscle.
- Reduces irritation at the injection site.
Memory trick: Z-track: Zigzag to Seal the Shot!