Which IV fluid is compatible with Blood Transfusion?

Appeared in: SGPGI Nursing Officer-2023

Explanation

9% Normal Saline (NS) is the only IV solution that is compatible with blood products.
NS is an isotonic solution, which means it has the same solute concentration as blood, preventing damage to red blood cells (RBCs).
It does not contain additives like calcium or dextrose that can cause clotting or hemolysis.
Medical guidelines and nursing standards of practice explicitly state that only NS should be used to prime blood tubing and administer with blood.

Option A: Distilled water is a hypotonic solution. When mixed with blood, it causes a rapid influx of water into the red blood cells, leading to swelling and bursting (hemolysis).
Option B: Ringer's Lactate (RL) contains calcium. The calcium in RL can bind to the citrate anticoagulant present in stored blood bags, neutralizing its effect and causing the blood to clot within the IV tubing or even in the patient's vein.
Option D: Dextrose in Normal Saline (DNS) contains glucose. Dextrose solutions can cause red blood cells to clump together (aggregate) and burst (hemolysis).

Clinical Relevance

Nursing practice connection: Knowing IV fluid compatibility for blood transfusion helps nurses interpret findings accurately and avoid errors in routine assessment, medication administration, and patient teaching.
Administering an incompatible fluid with blood is a critical patient safety error that can lead to a life-threatening hemolytic transfusion reaction or embolic event.
The nurse's primary responsibility is to ensure the correct IV fluid (0.9% NS) is used for priming the blood tubing and for infusion alongside the blood product.
Before starting a transfusion, the nurse must verify the blood product with another registered nurse, check the patient's identity, and ensure all equipment, including the IV fluid, is correct.

How to Approach the Question

This is a factual recall question based on a fundamental nursing safety principle.
First, identify the core concept: compatibility of fluids with blood transfusion.
Recall the standard of care for blood administration. There is only one fluid approved for this purpose.
Evaluate each option based on its composition and tonicity.
Eliminate hypotonic solutions (distilled water) because they cause hemolysis.
Eliminate solutions containing calcium (Ringer's Lactate) because they cause clotting.

Concept Tested & Keywords

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E6 Nursing Brunner Adult Health 3SA Vol 1 Part 1 p. 142-144

E6 Nursing Fundamentals Potter Perry 12e Part 5 p. 68-70

E6 Nelson Textbook of Pediatrics(2024) — Volume 1 p. 571-573

Practise the full SGPGI Nursing Officer-2023

Attempt every question from this paper in a timed mock, then review the full solution for each one.