Hematocrit [Volume Fraction] of Blood by Centrifugation   4545-0

LOINC Code


LOINC code4545-0
nameHematocrit [Volume Fraction] of Blood by Centrifugation
statusACTIVE

Fully-Specified Name

componentErythrocyte/Specimen Volume
propertyVFr  =  Volume Fraction
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
methodSpun

Additional Names

short nameHct VFr Bld Spun

Basic Attributes

classHEM/BC
type1  Laboratory
order vs. observationBoth
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.

History/Usage

test rank6416 of 2000 most commonly performed tests by labs in USA
first released
last updated2.79
last change typeNAM  - change to Analyte/Component
change reasonRelease 2.79: COMPONENT: Triggered by Coll w SCT:Hematocrit as a component is not an adequate description for a ratio, therefore Hematocrit is kept as a synonym, and the actual component is expressed as it should be:Erythrocyte/Specimen Volume;

Related Names

Blood
Centrifugation
Centrifuged
Discocyte
Erc
Erythrocytes
HEMATOLOGY/CELL COUNTS
Percent
Point in time
Post centrifugation
QNT
Quan
Quant
Quantitative
Random
RBC
Red blood cell
Red blood cells
Red blood corpuscle
Red blood corpusles
Red cell
Red cells
Spec
Vol
Volfr
Volume fraction
WB
Whole blood

Copyright © 2024 Regenstrief Institute, Inc. All Rights Reserved. To the extent included herein, the LOINC table and LOINC codes are copyright © 1995-2024, 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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