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Red Cell Distribution Width (RDW)

Purpose:

To use the RDW and MCV to suggest the likely cause for anemia.

Specialty:

Hematology, Hematology

Objective:

laboratory tests, other testing

ICD-10:

D50-D53, D55-D59, D60-D64, D65-D69, D70-D77

Description:

The Red Cell Distribution Width (RDW) is the coefficient of variation of the red blood cell size as determined on automated blood cell counting instruments. It is a measure of anisocytosis. It has limited value in patients without anemia.

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