ATI Hematologic System Test Related

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In iron deficiency anemia there is characteristically

  • A. An atrophic gastritis
  • B. A low mean corpuscular volume
  • C. A reduced total iron binding capacity
  • D. Megaloblastic changes in the bone marrow
Correct Answer: B

Rationale: Step-by-step rationale:
1. Iron deficiency leads to decreased hemoglobin synthesis, resulting in smaller red blood cells.
2. Mean corpuscular volume (MCV) measures the average size of red blood cells.
3. In iron deficiency anemia, MCV is low due to the smaller red blood cells.
4. Therefore, choice B is correct as it reflects the characteristic feature of iron deficiency anemia.

Summary:
A: Atrophic gastritis is seen in pernicious anemia, not iron deficiency anemia.
C: Total iron binding capacity is increased, not reduced, in iron deficiency anemia.
D: Megaloblastic changes in the bone marrow are seen in megaloblastic anemias, not iron deficiency anemia.