21000-5
LaboratoryErythrocyte distribution width [Entitic volume] by Automated count
Definition
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.
LOINC 6-Axis Classification
Component
Erythrocyte distribution width
Property
EntVol
Time Aspect
Pt
System
RBC
Scale Type
Qn
Method Type
Automated count
Details
Class
HEM/BC
Order/Observation
Observation
Short Name
RDW RBC Auto
Display Name
Erythrocyte distribution width Auto (RBC) [Entitic vol]
Related Names
Frequently Asked Questions
What is LOINC code 21000-5?
LOINC code 21000-5 identifies "Erythrocyte distribution width [Entitic volume] by Automated count". 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.
What does 21000-5 measure?
This code measures Erythrocyte distribution width in RBC. It belongs to the HEM/BC class in the LOINC classification.
What is LOINC?
LOINC (Logical Observation Identifiers Names and Codes) is a universal standard for identifying laboratory and clinical observations. It is maintained by the Regenstrief Institute and used worldwide for health data exchange.