Questions and Answers
What is the primary purpose of the Z-track method of intramuscular injection?
A Z-track injection should not be given into lumpy or reddened skin.
True
What should be done after drawing the medication into the syringe for a Z-track injection?
Change the needle
What is the required needle length for a Z-track injection depending on patient size?
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Aspirating on the syringe before injecting is not necessary during a Z-track injection.
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What should be done if blood appears in the syringe during a Z-track injection?
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Never inject more than ___ ml of medication at a time when using the Z-track method.
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What is the recommended action regarding the injection sites for Z-track injections?
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Which of the following is a precaution to take during a Z-track injection?
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What should be avoided for Z-track injections?
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Study Notes
Z-Track Injection Method
- The Z-track method is utilized for intra-muscular (I.M.) injections, particularly for dark-colored or irritating medications, like iron solutions, haloperidol, or vistaril.
- This technique prevents staining of subcutaneous tissue, minimizing irritation and discomfort.
Key Precautions for Z-Track Injection
- Avoid injecting into skin that appears lumpy, reddened, irritated, bruised, stained, or hardened.
- Add 0.3–0.5 ml of air into the syringe after obtaining the correct medication dosage to create a barrier.
Needle Selection and Technique
- Change the needle post-drawing medication to maintain injection integrity.
- Use a long (2 inches) 21- or 22-gauge needle, depending on the patient's size, to ensure deep muscle placement.
Injection Site Guidelines
- Administer Z-track injections in large muscles, such as gluteus medius or gluteus minimus.
- Aspirate the syringe before injecting to verify that no blood vessel has been punctured; if blood enters the syringe, discard the attempt.
Procedure After Incorrect Injection
- If blood is aspirated, discard the syringe and medication. Start again with a new syringe, medication, and site.
- Advise the patient against wearing restrictive clothing that may apply pressure on the injection site.
Site Rotation and Volume Limits
- Rotate injection sites between buttocks and within different spots; avoid injecting into limbs with reduced circulation to prevent absorption issues and potential abscess formation.
- Limit the injection volume to a maximum of 5 ml at one site; if a larger dosage is prescribed, divide and administer in separate sites.
Administering the Injection
- Use the non-dominant hand to hold and displace the skin and subcutaneous tissue about 1.5 inches laterally from the injection site.
- Apply gentle pressure with a dry gauze pad post-injection; avoid rubbing the site. If bleeding occurs, maintain pressure and apply a bandage if needed.
- Allow the patient to rest for approximately 5 minutes after the procedure.
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Description
This quiz focuses on the Z-track method of intramuscular injection. It highlights the importance of using this technique for administering dark-colored and irritating medications to avoid staining and tissue damage. Test your knowledge about the precautions and definitions related to this injection method.
