Which nursing intervention is incorrect while using z-track method of injection?

RUHS, Jaipur, PB B.Sc Nursing Entrance-2018

Fundamental of Nursing

Medium

Appeared in: RUHS, Jaipur, PB B.Sc Nursing Entrance-2018

Explanation

The primary goal of the Z-track method is to prevent the leakage of irritating medication into subcutaneous tissue.
Rubbing or massaging the injection site after a Z-track injection is strictly contraindicated.
This action disrupts the sealed needle track created by the displaced tissue, forcing medication back into the subcutaneous layer.
Leakage of medication can lead to significant pain, inflammation, skin staining (discoloration), and tissue damage.

Option A: This is a correct and mandatory action. Preparing the site with an antiseptic like alcohol is a fundamental principle of asepsis to prevent infection.
Option B: This is a correct action. A needle of at least 1 to 1.5 inches is required for most adults to ensure the medication is deposited deep within the muscle, past the subcutaneous fat layer.
Option D: This is a correct action for most IM injections, particularly those given via Z-track which often involve irritating medications. It is a safety measure to prevent accidental injection into a blood vessel. Note: Aspiration is no longer recommended for vaccines.

Clinical Relevance

Nursing practice connection: Knowing Z-Track Intramuscular Injection Technique helps nurses interpret findings accurately and avoid errors in routine assessment, medication administration, and patient teaching.
Patient Safety: Correctly performing the Z-track method is crucial for patient safety and comfort. It prevents painful tissue irritation, sterile abscesses, and permanent skin staining from medications like iron dextran.
Common Medications: This technique is essential for administering viscous or irritating medications such as iron solutions, hydroxyzine, and some antipsychotics (e.g., haloperidol).
What if? What if the patient is very thin or cachectic? The nurse must adjust the technique. This may involve using a shorter needle (e.g., 1 inch) and pinching the muscle to ensure the injection is intramuscular and not subcutaneous, while still using the Z-track displacement.

How to Approach the Question

First, identify the keyword 'incorrect' in the question stem. This tells you that three of the options are correct nursing actions, and only one is an error.
Next, recall the purpose of the Z-track injection method. Its main goal is to create a seal to lock the medication deep in the muscle and prevent it from leaking out.
Evaluate each option based on this primary goal.
Ask yourself: 'Does this action help or hinder the goal of sealing the medication in the muscle?'
Preparing the site, using a long enough needle, and aspirating are all standard, safe practices for IM injections.
Rubbing the site would physically disrupt the tissue layers and break the seal created by the Z-track. Therefore, this is the incorrect action and the correct answer to the question.

Concept Tested & Keywords

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E6 Nursing Fundamentals Potter Perry 12e Part 3 pp. 203-205, 174-176

E6 Nursing Fundamentals Taylor p. 862-864