Name Steward Organization Suggested Domain Suggested Domain Description Cde Group Classification
Erythrocyte distribution width [Ratio] by Automated count LOINC Biomarkers, genetics, and genomics
Biomarkers, genetics, and genomics relevant to AD/ADRD
NIH CDEs
  • PhenX
    • Miscellaneous

# Datatype
Number

# Name Origin Concept type
Erythrocyte distribution width LP17698-9 Erythrocyte distribution width Red Cell Distribution Width (RDW) is a measurement of anisocytosis. RDW is elevated in iron deficiency anemia and beta thalassemia major and usually normal in beta thalassemia minor. RDW has also been shown to be significantly increased in pregnant women during gestational week 34 through labor onset. Information from Laboratory Test Handbook, Jacobs DS, DeMott WR,Oxley DK;LexiComp,2001. Source: Regenstrief Institute object

# Definition Tags
The RDW-CV is the ratio of the variation in width to the mean width of the RBC volume distribution curve taken at +/- 1CV. Source: Regenstrief LOINC

# Designation Tags
RDW RBC Auto-Rto Short Name
Erythrocyte distribution width Auto (RBC) [Ratio] Display Name
Red Blood Cell Distribution Width (RDW), Red Blood Cells Consumer Name ALPHA
Erythrocyte distribution width [Ratio] by Automated count Long Common Name

# Identifier Origin Version
gXevvgMSsq NLM CDEs 12-02-2025-download
788-0 LOINC 2.69