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Red cell distribution width on the Coulter Model S-Plus.

Authors
  • Cornbleet, P J
  • Buechel, J
Type
Published Article
Journal
The American journal of medical technology
Publication Date
Dec 01, 1983
Volume
49
Issue
12
Pages
865–867
Identifiers
PMID: 6670664
Source
Medline
License
Unknown

Abstract

Red cell distribution width (RDW) on the Coulter S-Plus has many limitations. Normal values (mean +/- 2 SD) were found to be sex dependent: 10.7 +/- 2.4 for males, and 9.8 +/- 1.8 for females. These ranges are broader than the normal range of 10.0 +/- 1.5 given by Coulter. When these broader ranges were applied, none of 29 patients with iron deficiency anemia showed an elevated RDW. Furthermore, a decrease in RDW with room temperature storage was observed and may contribute to erroneous results. The Coulter S-Plus RDW may not be as useful in quantitating anisocytosis as other methods of measuring the dispersion of the red cell volume histogram.

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