Serotonin release 0.1 IU/mL heparin.unfractionated [Units/volume] in Serum   50728-5

LOINC Code


LOINC code50728-5
nameSerotonin release 0.1 IU/mL heparin.unfractionated [Units/volume] in Serum
descriptionResulted as percentage of specific serotonin release: (cpm test - cpm spont)/(cpm max - cpm spont) x 100, where cpm "spont" is the spontaneous release of [3H]serotonin from cells incubated in absence of antibodies, and cpm "max" is the maximum release of [3H]serotonin from cells lysed using 1% Triton X-100.
statusACTIVE

Fully-Specified Name

componentSerotonin release 0.1 IU/mL heparin.unfractionated
    IU  =  Intrauterine
propertyACnc  =  Arbitrary Concentration
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.
systemSer  =  Serum
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 nameSRA 0.1IU/mL UFH Ser-aCnc

Basic Attributes

classSERO
type1  Laboratory
order vs. observationObservation
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

50737-6Serotonin release.heparin.porcine panel - Serum
50737-6Serotonin release.heparin.porcine panel - Serum
50736-8Serotonin release.heparin.unfractionated panel - Serum
50736-8Serotonin release.heparin.unfractionated panel - Serum

History/Usage

test rank5291 of 2000 most commonly performed tests by labs in USA
first released
last updated2.73
last change typeMIN  - change to field other than name
change reasonThis code originally used the word 'heparin' to describe the drug used in the serotonin release assay. It was determined from communication with the Blood Center of Wisconsin that either 'LMW heparin' or 'unfractionated heparin' can be used, and that these 2 codes must be intended to reflect the result using unfractionated heparin. As a result, the name was modified to better reflect the intended meaning. June 2015 release: Changed U/mL to IU/mL in the Component based on the WHO International Laboratories Biological Reference Preparations List (2015). 'U' represents enzyme units but is often misused for units without specifying what kind.

Related Names

5-HT
5-hydroxytryptamine
5-hydroxytryptophane
Arbitrary concentration
C10H12N2O
Enteramine
Hep
Hepar
Heparin dependent platelet antibody
Heparn
Point in time
QNT
Quan
Quant
Quantitative
Random
Serology
Serotonin release assay
Serum
SR
SRA
SRA 0.1IU
SRA 0.1IU/mL UFH
SRA low 0.1
SRA low dose heparin
UFH

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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