Erythrocyte [DistWidth] in Blood   30385-9

LOINC Code


LOINC code30385-9
nameErythrocyte [DistWidth] in Blood
descriptionThe RDW-CV is the ratio of the variation in width to the mean width ot the RBC volume distribution curve taken at +/- 1CV.
statusACTIVE

Fully-Specified Name

componentErythrocyte
propertyDistWidth
timePt  =  Point in time:  To identify measures at a point in time. This is a synonym for “spot” or “random” as applied to urine measurements.
systemBld  =  Whole blood
scaleQn  =  Quantitative:  The result of the test is a numeric value that relates to a continuous numeric scale. Reported either as an integer, a ratio, a real number, or a range. The test result value may optionally contain a relational operator from the set {<=, <, >, >=}. Valid values for a quantitative test are of the form "7", "-7", "7.4", "-7.4", "7.8912", "0.125", "<10", "<10.15", ">12000", 1-10, 1:256
method

Additional Names

short nameErythrocyte DistWidth Bld

Basic Attributes

classHEM/BC
type1  Laboratory
order vs. observationObservation
formula (readable)SD of red cell size distribution/MCV
example UCUM units%
The Unified Code for Units of Measure (UCUM) is a code system intended to include all units of measures being contemporarily used in international science, engineering, and business (www.unitsofmeasure.org)
example unit%

Associated Observations

LOINC codes that represent optional associated observation(s) for a clinical observation or laboratory test. A LOINC term may represent a single associated observation or panel containing several associated observations.

Member of these Panels

69742-5CBC W Differential panel, method unspecified - Blood
24358-4Hemogram without Platelets panel - Blood
24358-4Hemogram without Platelets panel - Blood
24358-4Hemogram without Platelets panel - Blood
24358-4Hemogram without Platelets panel - Blood
24358-4Hemogram without Platelets panel - Blood

History/Usage

test rank96 of 2000 most commonly performed tests by labs in USA
first released
last updated2.81
last change typeNAM  - change to Analyte/Component
change reasonRelease 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…;

Related Names

Blood
Discocyte
Erc
Erythrocytes
HEMATOLOGY/CELL COUNTS
Point in time
QNT
Quan
Quant
Quantitative
Random
RBC
Red blood cell
Red blood cells
Red blood corpuscle
Red blood corpusles
Red cell
Red cells
WB
Whole blood

Copyright © 2025 Regenstrief Institute, Inc. All Rights Reserved. To the extent included herein, the LOINC table and LOINC codes are copyright © 1995-2025, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee. See https://loinc.org/license for the full LOINC copyright and license.

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