Earliest recognizable change in RBC morphology:

 # Which of the following is earliest recognizable change in RBC morphology in case of iron deficiency? 

a. Hypochromia 

b. Anisocytosis 

c. Target cells 

d. Poikilocytosis

The correct answer is B. Anisocytosis. 

Anisocytosis is the medical term for having red blood cells (RBCs) that are unequal in size. Normally, a person’s RBCs should all be roughly the same size.

Anisocytosis is usually caused by another medical condition called anemia. It may also be caused other blood diseases or by certain drugs used to treat cancer. For this reason, the presence of anisocytosis is often helpful in diagnosing blood disorders like anemia.

Treatment for anisocytosis depends on the cause. The condition isn’t dangerous on its own, but it does indicate an underlying problem with the RBCs.

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