All are types of hemolytic anemia EXCEPT?

Appeared in: AIIMS Rishikesh & Jodhpur NO - 2017

Explanation

Iron deficiency anemia is classified as a hypoproliferative anemia, which results from the defective or decreased production of red blood cells (RBCs).
The underlying cause is a lack of sufficient iron, a critical component needed to synthesize hemoglobin within RBCs.
This condition is not characterized by hemolysis (premature destruction of RBCs), which is the defining feature of hemolytic anemias. Therefore, it is the correct exception.

Option B: Thalassemia is a classic example of an inherited hemolytic anemia.
Option C: Spherocytosis is an inherited hemolytic anemia.
Option D: SCA (Sickle Cell Anemia) is a hallmark inherited hemolytic anemia.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Classification of Anemias (Hemolytic vs. Non-Hemolytic) as background academic context rather than a clinical decision trigger.
Differentiating the cause of anemia is critical for treatment. Iron deficiency anemia is treated with iron supplementation, whereas this would be ineffective and potentially harmful (leading to iron overload) in most hemolytic anemias.
Nurses must educate patients on the correct management for their specific type of anemia, such as dietary changes and iron supplements for IDA versus supportive care, folic acid, and potential transfusions for hemolytic crises.
What if? If a patient with undiagnosed thalassemia is mistakenly treated with high-dose iron for a misdiagnosed iron deficiency, they could develop severe iron overload (secondary hemochromatosis), leading to significant organ damage, particularly to the liver and heart.

How to Approach the Question

First, identify the keyword 'EXCEPT' in the question stem. This signals that you must find the option that does not fit the specified category.
Next, define the core concept: 'hemolytic anemia'. This is a group of disorders characterized by the premature destruction of red blood cells.
Evaluate each option against this definition.
Analyze Option A: Iron deficiency anemia is caused by a lack of iron needed to produce red blood cells. This is a production problem, not a destruction problem.
Analyze Options B, C, and D: Thalassemia, Spherocytosis, and Sickle Cell Anemia are all well-known genetic disorders that lead to the premature destruction of red blood cells.
Conclude that Iron deficiency anemia is the only option that is not a hemolytic anemia, making it the correct answer.

Concept Tested & Keywords

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E6 Nursing Brunner Adult Health 3SA Vol 1 Part 3 pp. 132-134, 139-141

E6 Medicine Harrison 22e Part 1 p. 832-834

Practise the full AIIMS Rishikesh & Jodhpur NO - 2017

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