{"title":"Red cell distribution width on the Coulter Model S-Plus.","authors":"P J Cornbleet, J Buechel","doi":"","DOIUrl":null,"url":null,"abstract":"<p><p>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.</p>","PeriodicalId":76595,"journal":{"name":"The American journal of medical technology","volume":"49 12","pages":"865-7"},"PeriodicalIF":0.0000,"publicationDate":"1983-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"The American journal of medical technology","FirstCategoryId":"1085","ListUrlMain":"","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
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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