All are types of hemolytic anemia EXCEPT?

Appeared in: AIIMS Rishikesh & Jodhpur NO - 2017

Explanation

Iron deficiency anemia is the most common type of anemia and is caused by a lack of iron.
Insufficient iron leads to impaired hemoglobin synthesis and reduced production of red blood cells (deficient erythropoiesis).
This is a problem of production, not destruction, so it is not classified as a 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, specifically differentiating between hemolytic anemias (increased destruction) and anemias of decreased production as background academic context rather than a clinical decision trigger.
Correctly identifying the type of anemia is critical for patient management. Treating a hemolytic anemia with iron supplements (the treatment for iron deficiency) is ineffective and can lead to iron overload, a serious and toxic condition.
Nurses must be able to recognize the signs and symptoms specific to each type of anemia to provide appropriate care and patient education.
What if? If a patient with undiagnosed thalassemia is given high doses of iron for their anemia, their body can become overloaded with iron, leading to damage to the liver, heart, and endocrine glands. This highlights the importance of accurate diagnosis before initiating treatment.

How to Approach the Question

First, identify the negative framing of the question by spotting the keyword 'EXCEPT'. This tells you that three of the options are correct examples of the category, and one is the outlier.
Next, define the key concept in the stem: 'Hemolytic anemia'. Recall or determine that this means anemia caused by the premature destruction of red blood cells.
Evaluate each option against this definition.
Ask yourself: Is Thalassemia caused by RBC destruction? Yes. Is Spherocytosis? Yes. Is Sickle Cell Anemia? Yes.
Ask yourself: Is Iron deficiency anemia caused by RBC destruction? No, it's caused by a lack of production.
The option that does not fit the definition is the correct answer.

Concept Tested & Keywords

Concept Tested: Classification of anemias, specifically differentiating between hemolytic anemias (increased destruction) and anemias of decreased production.
Stem keywords: hemolytic anemia, types
Lead-in keywords: EXCEPT
Negative lead-in flag: Question asks for the exception.

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E6 Nursing Brunner Adult Health 3SA Vol 1 Part 3 p. 139-141

E6 Physiology Guyton 4SAE Part 1 p. 186-188

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