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Related Experiment Videos

The red blood cell distribution width.

T C Evans1, D Jehle

  • 1Division of Emergency Medicine, Allegheny General Hospital, Pittsburgh, Pennsylvania 15212.

The Journal of Emergency Medicine
|January 1, 1991
PubMed
Summary
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Automated blood analyzers now provide red blood cell distribution width (RDW), aiding emergency physicians in diagnosing anemias, particularly microcytic types. This RDW index simplifies anemia detection and classification when combined with mean corpuscular volume (MCV).

Area of Science:

  • Hematology
  • Clinical Pathology
  • Emergency Medicine

Background:

  • Automated blood cell analyzers offer a Red Blood Cell Distribution Width (RDW) index.
  • Emergency physicians commonly detect anemia.
  • RDW aids in diagnosing specific anemias, especially microcytic ones.

Purpose of the Study:

  • To discuss the derivation and clinical application of RDW for emergency physicians.
  • To categorize anemias using Mean Corpuscular Volume (MCV) and RDW.

Main Methods:

  • Review of RDW index derivation.
  • Analysis of RDW's clinical utility in emergency settings.
  • Development of an anemia categorization scheme based on MCV and RDW.

Main Results:

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  • RDW provides valuable information for anemia diagnosis.
  • Integration of RDW simplifies the diagnostic process for microcytic anemias.
  • A classification system using MCV and RDW can aid in differential diagnosis.

Conclusions:

  • RDW is a valuable tool for emergency physicians managing anemia.
  • Combining RDW with MCV enhances anemia diagnosis and classification.
  • Automated analyzers improve the efficiency of anemia detection in emergency care.