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Hematology

Mentzer Index

Discriminates thalassemia trait from iron-deficiency anemia using MCV and RBC count.

Inputs

FieldUnitNotes
MCV fL 50–150
RBC count millions/µL 1–10

FAQ

What is the Mentzer Index?

Discriminates thalassemia trait from iron-deficiency anemia using MCV and RBC count.

What inputs does the Mentzer Index need?

MCV (fL), RBC count (millions/µL).

Related guides

Mentzer Index: Screening Thalassemia Trait vs Iron Deficiency in Microcytic Anemia

MCV ÷ RBC count — the <13 thalassemia-trait / >13 iron-deficiency rule for microcytic anemia, the physiology behind it, sensitivity/specificity, and why it never replaces electrophoresis or iron studies.

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