Delayed transfusion related complication is?

RUHS, Jaipur, M.Sc Nursing Entrance Exam-2016

Medical Surgical Nursing

Easy

Appeared in: RUHS, Jaipur, M.Sc Nursing Entrance Exam-2016

Explanation

Iron overload (hemosiderosis) is a classic delayed complication of chronic blood transfusion therapy.
Each unit of packed red blood cells contains 200-250 mg of iron, which the body cannot effectively excrete.
Over time, this iron accumulates in vital organs like the liver and heart, leading to significant morbidity and organ toxicity.
This process occurs over months to years, classifying it as a delayed reaction.

Option A: Circulatory overload (TACO) is an acute complication, not a delayed one. It occurs when the volume of transfused blood exceeds the circulatory system's capacity, typically within hours of the transfusion.
Option B: Septicemia is an acute, life-threatening complication resulting from bacterial contamination of the blood product. Symptoms like fever and shock appear rapidly, during or shortly after the transfusion.
Option D: Hypocalcemia is an acute metabolic complication, usually associated with massive transfusions. The citrate anticoagulant used for blood storage binds to calcium in the recipient's blood, causing an immediate drop.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Classification of Blood Transfusion Complications as background academic context rather than a clinical decision trigger.
Nurses must monitor for both acute and delayed transfusion reactions. While acute reactions require immediate intervention, awareness of delayed complications is crucial for patient education and long-term management, especially for chronically transfused patients.
For patients receiving long-term transfusions, nurses play a key role in monitoring serum ferritin levels and administering iron chelation therapy as ordered to prevent organ damage from iron overload.
What if? If a patient receiving chronic transfusions reports fatigue and has elevated liver enzymes, the nurse should suspect iron overload as a delayed complication and ensure the healthcare team is alerted to assess iron studies (e.g., serum ferritin) and consider chelation therapy.

How to Approach the Question

First, identify the key term in the question: 'delayed'. This directs you to differentiate complications based on their onset time.
Next, recall the two main categories of transfusion complications: acute (occurring within 24 hours) and delayed (occurring after 24 hours).
Evaluate each option against this classification.
Circulatory overload, septicemia, and hypocalcemia are all known to occur rapidly, during or shortly after a transfusion, placing them in the 'acute' category.
Iron overload results from the gradual accumulation of iron from multiple transfusions over a long period, fitting the definition of a 'delayed' complication.

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