Term Description

The RDW-CV is the ratio of the variation in width to the mean width ot the RBC volume distribution curve taken at +/- 1CV.

Part Description

LP16699-8   Erythrocyte
Erythrocytes or red blood cells (RBCs) are the cells in the circulation that carry oxygen to and remove carbon dioxide from the tissues throughout the body. They are produced in the bone marrow in response to erythropoietin where they transition through six stages over a seven day period. When they are released into the circulation, their nucleus has been extruded and they measure 6-8 microns in diameter. The lifespan of RBCs is about 120 days. When the RBC ages the cell membrane becomes less pliable and tears as they cell travels through the micro vessels of the body. The damaged RBCs are removed from the circulation by the spleen. Variations in number, shape and size of RBCs are indicative of many diseases and disorders. There are many factors that may lead to decreased numbers of RBCs including hemorrhage, hemolysis, iron or vitamin deficiency, marrow failure and more. Larger than normal RBCs may be indicative of liver disease while smaller than normal RBCs are seen in thalassemias and other anemias.(Mosby's manual of diagnostic and laboratory tests, Kathleen Deska Pagana; Timothy James Pagana, Elsevier St. Louis, Mo ©2010) Source: Regenstrief LOINC

LOINC Names Get Info

Fully-Specified Name
Erythrocyte:DistWidth:Pt:Bld:Qn:
Long Common Name
Erythrocyte [DistWidth] in Blood
Short Name
Erythrocyte DistWidth Bld
Display Name
Erythrocyte (Bld) [DistWidth]
Consumer Name Alpha Get Info
Red Blood Cell (RBC), Blood

Part Model Get Info

  • Component
    Erythrocyte
    LP16699-8
    • Analyte
      Erythrocyte
      LP16699-8
      • Component Numerator
        Erythrocyte
        LP16699-8
        • Component Numerator Core
          Erythrocyte
          LP16699-8
        • Component Numerator Core Suffix
          NULL
           
      • Component Denominator
        NULL
         
        • Component Denominator Core
          NULL
           
        • Component Denominator Core Suffix
          NULL
           
    • Challenge
      NULL
       
    • Adjustment
      NULL
       
    • Count
      NULL
       
  • Property
    DistWidth
    LP443406-6
  • Time
    Pt
    LP6960-1
  • System
    Bld
    LP7057-5
    • System Core
      Bld
      LP7057-5
    • Super System
      NULL
       
  • Scale
    Qn
    LP7753-9
  • Method
    NULL
     

Basic Attributes

Class
HEM/BC
Type
Laboratory
First Released
Version 2.04
Last Updated
Version 2.81 (NAM)
Change Reason
Release 2.79: COMPONENT: Triggered by coll w SCT: component that the description is property like as in Color, Appearance, Osmolality have changed to Component: Observation, and Property: Color, or Appearance, or Osmolality, so forth…;
Order vs. Observation
Observation
Common Test Rank Get Info
96

Formula (Readable)

SD of red cell size distribution/MCV

Member of these Panels

LOINCLong Common Name
69742-5CBC W Differential panel, method unspecified - Blood
24361-8Deprecated Hemogram, platelets & Differential panel in Blood
34527-2Deprecated Hemogram, Platelets, Differential & Reticulocyte panel in Blood
24317-0Hemogram and platelets WO differential panel - Blood
24359-2Hemogram without Platelets and with Manual Differential panel - Blood
24358-4Hemogram without Platelets panel - Blood

Language Variants Get Info

TagLanguageTranslation
cs-CZCzech (Czechia)Erytrocyty šíře distribuce:Poměr:Časový bod:Erytrocyty:Kvantitativní:
de-ATGerman (Austria)Synonyms: RDW-CV
de-DEGerman (Germany)Erythrozyt:Verteilungsbreite:Zeitpunkt:Blut:Quantitativ:
es-ARSpanish (Argentina)ancho de distribución eritrocitaria:relación:punto en el tiempo:eritrocitos:cuantitativo:
es-ESSpanish (Spain)Eritrocito:Ancho de distribución:Punto temporal:Sangre:Qn:
Synonyms: Cuantitativo
es-MXSpanish (Mexico)Ancho de distribución de eritrocitos:Proporción:Punto temporal:Eritrocitos:Cuantitativo:
fr-CAFrench (Canada)Érythrocyte:Largeur de distribution:Temps ponctuel:Sang:Quantitatif:
fr-FRFrench (France)Érythrocyte:Indice de distribution:Ponctuel:Sang:Numérique:
it-ITItalian (Italy)Eritrociti:DistAltezza:Pt:Sangue:Qn:
Synonyms: DistAltezza Ematologia (coagulazione) conta differenziale Punto nel tempo (episodio) Sangue
ko-KRKorean (Korea, Republic Of)적혈구 분포 폭:비율:검사시점:적혈구:정량:
nl-NLDutch (Netherlands)erytrocyten distributiebreedte:verhouding:moment:erytrocyten:kwantitatief:
Synonyms: RDW rode bloedcellen
pl-PLPolish (Poland)Erytrocyt:szerokość dystrybucji:punkt w czasie:krew:ilościowy:
Synonyms: Krwinka czerwona
pt-BRPortuguese (Brazil)Amplitude de distribuição do tamanho dos eritrócitos:Ratio:Pt:Eritroc:Qn:
Synonyms: ; RDW; Erythrocyte morphology index; RCMI; Erythrocytes; Red blood corpusles; Red blood corpuscle; Red blood cell; Red cell; Red cells; Discocyte; Erc; Red blood cells; Rto; Point in time; Random; Quantitative; QNT; Quant; Quan; HEMATOLOGY/CELL COUNTS; HEMATOLOGY/CELL COUNTS; RDW-CV
zh-CNChinese (China)红细胞:分布宽度:时间点:全血:定量型:
Synonyms: DW RBC;盘状细胞;红血球;红血细胞 可用数量表示的;定量性;数值型;数量型;连续数值型标尺 时刻;随机;随意;瞬间 血;血液 血液学/细胞计数;血液学与细胞计数

Example Units

UnitSource
%Example UCUM Units
%REGENSTRIEF

LOINC Terminology Service (API) using HL7® FHIR® Get Info

CodeSystem lookup
https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=30385-9