What is the preferred route of iron dextran administration

RUHS, Jaipur, M.Sc Nursing Entrance Exam-2024

Pharmacology

Easy

Appeared in: RUHS, Jaipur, M.Sc Nursing Entrance Exam-2024

Explanation

The preferred route for iron dextran is intramuscular (IM) using the Z-track technique.
Iron dextran is a deeply colored, irritating solution that can cause permanent staining of the skin and subcutaneous tissue.
The Z-track method involves displacing the skin before injection, which creates a sealed, zigzag path when the skin is released after the needle is removed.
This sealing action prevents the medication from leaking back out of the muscle into the subcutaneous tissue, thereby avoiding skin discoloration and reducing local irritation.

Option B: Although iron dextran can be administered intravenously, it is not the preferred route due to a significant risk of severe anaphylactoid reactions, which can lead to vascular collapse and death.
Option C: The intra-arterial route is never used for iron supplementation. It is a specialized route for delivering high concentrations of drugs (like chemotherapy) to a specific organ or tumor.
Option D: The intra-osseous route is an emergency procedure for delivering fluids and medications directly into the bone marrow when intravenous access cannot be established quickly.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Parenteral Iron Administration as background academic context rather than a clinical decision trigger.
Proper administration using the Z-track technique is a critical nursing skill to ensure patient safety and comfort, preventing the permanent cosmetic issue of skin staining.
Nurses must never massage the injection site after giving an IM iron injection, as this can force the medication into the subcutaneous tissue and cause the staining the Z-track method is meant to prevent.
What if? If a patient has very little muscle mass or requires a total dose correction that is too large for multiple IM injections, the provider may order an IV infusion. In this case, the nurse's priority shifts to monitoring for anaphylaxis, starting with a test dose (if ordered) and having epinephrine and resuscitation equipment immediately available.

How to Approach the Question

First, identify the key components of the question: the drug is 'iron dextran' and the keyword is 'preferred route'.
Recall the specific properties of iron dextran. It is known to be irritating to tissues and causes a distinct dark brown staining of the skin.
Evaluate each option based on these properties. The 'IM Z-track' method is a specialized technique specifically designed to administer irritating medications and prevent leakage into subcutaneous tissue.
Consider the major risks of the other routes. The 'Intravenous' route for iron dextran is associated with a high risk of life-threatening anaphylaxis.
Eliminate the clearly incorrect options. 'Intra-arterial' and 'Intra-osseous' are highly specialized or emergency routes not used for routine supplementation.
Conclude that the IM Z-track method is 'preferred' because it directly addresses the drug's most common local side effect (staining) while avoiding the most severe systemic risk (anaphylaxis) associated with the IV route.

Concept Tested & Keywords

QJP2fTIutNNTB-lORxcT6Q

E6 Pharmacology KD Tripathi Essentials 9e Part 2 p. 276-278

E6 Pharmacology Nursing Lilley 11e Part 3 p. 223-225

E6 Nursing Fundamentals Taylor p. 862-864