LOINC
Version 2.73

21000-5Erythrocyte distribution width [Entitic volume] by Automated countActive

Term Description

The RDW-SD is determined from the RBC volume distribution curve. It is calculated from the width of the curve at 20% of the peak count.
Source: Regenstrief LOINC

Part Description

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

Fully-Specified Name

Component
Erythrocyte distribution width
Property
EntVol
Time
Pt
System
RBC
Scale
Qn
Method
Automated count

Additional Names

Short Name
RDW RBC Auto
Display Name
Erythrocyte distribution width Auto (RBC) [Entitic vol]
Consumer Name Alpha
Red Blood Cell Distribution Width (RDW), Red blood cells

Basic Attributes

Class
HEM/BC
Type
Laboratory
First Released
Version 1.0m
Last Updated
Version 2.73
Order vs. Observation
Observation
Common US Lab Results Rank
147

Reference Information

Type Source Reference
Mapping Guidance Regenstrief Help Erythrocyte distribution width (EDW) can be reported with units of % or volume (fL). For units reported as %, use [LOINC: 788-0]. For EDW reported in volume units, use [LOINC: 21000-5]. Mapper’s Guide for the Top 2000 plus LOINC Laboratory Observations

Member of these Panels

LOINC Long Common Name
58410-2 CBC panel - Blood by Automated count
57021-8 CBC W Auto Differential panel - Blood
57782-5 CBC W Ordered Manual Differential panel - Blood
57022-6 CBC W Reflex Manual Differential panel - Blood
24364-2 Obstetric 1996 panel - Serum and Blood

Language Variants Get Info

zh-CNChinese (China)
红细胞分布宽度:实体体积:时间点:红细胞:定量型:自动化计数方法
nl-NLDutch (Netherlands)
erytrocyten distributiebreedte:volume/eenheid:moment:erytrocyten:kwantitatief:geautomatiseerde telling
fr-BEFrench (Belgium)
Indice de distribution de volume érythrocytaire:Volume entitique:Temps ponctuel:GR:Quantitatif:Décompte automatisé
fr-CAFrench (Canada)
Indice de distribution des volumees érythrocytaires:Volume entitique:Temps ponctuel:GR:Quantitatif:Décompte automatisé
fr-FRFrench (France)
Indice de distribution érythrocytaire:Volume d'entité:Ponctuel:Érythrocytes:Numérique:Comptage automate
de-DEGerman (Germany)
Erythrozytenverteilungsbreite:Entitisches Volumen:Zeitpunkt:Erythrozyten:Quantitativ:Automatisierte Zählung
it-ITItalian (Italy)
Eritrociti, ampiezza distribuzione:EntVol:Pt:RBC:Qn:Conta automatica
ko-KRKorean (Korea, Republic of)
적혈구 분포 폭:측정물질의 부피:검사시점:적혈구:정량:자동계수
pl-PLPolish (Poland)
rozpiętość rozkładu objętości erytrocytów:Ustalona objętość:Punkt w czasie:Krwinki czerwone RBC:ilościowy:Automatyczne liczenie
pt-BRPortuguese (Brazil)
Amplitude de distribuição do tamanho dos eritrócitos:EntVol:Pt:Eritroc:Qn:Contagem automática
ru-RURussian (Russian Federation)
Эритроцит распределение ширина:СущнОб:ТчкВрм:Эритроциты:Колич:Автоматизированный подсчет
es-ARSpanish (Argentina)
ancho de distribución eritrocitaria:volumen entítico:punto en el tiempo:eritrocitos:cuantitativo:recuento automático
es-MXSpanish (Mexico)
Ancho de distribución de eritrocitos:Volumen entítico:Punto temporal:Eritrocitos:Cuantitativo:Recuento automatizado
es-ESSpanish (Spain)
Ancho de distribución eritrocitaria:Volumen entítico:Punto temporal:Glóbulos rojos:Qn:Contaje automático
tr-TRTurkish (Turkey)
Eritrosit dağılım genişliği:EntHcm:Zmlı:Eritrosit:Kant:Otomatize sayım
uk-UAUkraine (Ukrainian)
Ширина розподілу еритроцитів:Ентитичний Об'єм:МоментЧасу:Еритроцити:Кількісно:Автоматизований підрахунок

Example Units

Unit Source
fL eCHN
fL Example UCUM Units

LOINC FHIR® API Example - CodeSystem Request Get Info

https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=21000-5