Iron dextran (Imferon) is a parenteral iron preparation. The nurse should know that it:

NORCET 5 mains

Pharmacology

Easy

Appeared in: NORCET 5 mains

Explanation

Iron dextran is an irritating solution that can cause permanent staining of the skin if it leaks into the subcutaneous tissue.
The Z-track method is a specialized technique for intramuscular (IM) injections that creates a zigzag path, sealing the medication deep within the muscle.
This sealing action prevents the medication from tracking back to the skin surface, thereby minimizing local irritation, pain, and discoloration.
Therefore, using the Z-track method is a mandatory safety precaution for the IM administration of iron dextran.

Option A: Intrinsic factor is a glycoprotein produced by parietal cells in the stomach, essential for the absorption of vitamin B₁₂. It has no physiological or pharmacological relationship with iron dextran.
Option B: The abdomen is a primary site for subcutaneous injections (e.g., insulin, heparin), not deep, large-volume IM injections. The preferred site for an iron dextran IM injection is a large, deep muscle like the ventrogluteal muscle.
Option D: Iron dextran is highly irritating and should never be given via the subcutaneous (SC) route. This would cause significant pain, tissue necrosis, and staining.

Visual 1: Diagram - A step-by-step illustration of the Z-track injection technique, showing the displacement of skin, injection, and release, creating the 'Z' path.
Visual 2: Anatomical Chart - Highlighting the ventrogluteal and dorsogluteal muscles as appropriate sites for deep intramuscular injections.

Clinical Relevance

Nursing practice connection: Knowing Parenteral Medication Administration helps nurses interpret findings accurately and avoid errors in routine assessment, medication administration, and patient teaching.
Proper injection technique is a critical nursing responsibility that directly impacts patient safety and comfort.
Failure to use the Z-track method for iron dextran can lead to a permanent, tattoo-like stain on the patient's skin, which can be distressing and is considered a preventable adverse outcome.
What if the nurse uses a standard IM technique instead of Z-track? The patient is at high risk for pain at the injection site and, more significantly, permanent skin discoloration (staining) as the iron solution leaks back into the subcutaneous track.

How to Approach the Question

First, identify the drug in the question: Iron dextran (Imferon).
Recall the key properties of this drug. The most important characteristic for administration is that it is highly irritating and can stain the skin.
Consider the options in light of this property. Which administration technique is specifically designed for irritating or staining medications?
Evaluate each option: 'Intrinsic factor' is a physiological term related to B12, not a drug administration technique. 'Abdomen' is a location, primarily for SC, not deep IM injections. 'SC' is the wrong route for this irritating drug.
This leaves the 'Z-track method,' which is the correct technique designed to seal irritating medication deep within the muscle, preventing leakage and staining. This makes it the correct answer.

Concept Tested & Keywords

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