Platelet aggregation ristocetin induced [Units/volume] in Blood --Low dose   78739-0

LOINC Code


LOINC code78739-0
namePlatelet aggregation ristocetin induced [Units/volume] in Blood --Low dose
descriptionAssay for the quantitative in vitro determination of platelet function triggered by a high concentration of ristocetin. In the presence of ristocetin, platelets bind to von Willebrand Factor (VWF) by means of glycoprotein Ib (GPIb) receptors and triggers platelet activation and aggregation. This term was created for, but not limited in use to, the Cobas RISTOtest, a quantitative in vitro assay using a high concentration of ristocetin (0.77 mg/mL) to stimulate strong platelet aggregation in whole blood samples by impedance aggregometry.
statusACTIVE

Fully-Specified Name

componentPlatelet aggregation.ristocetin induced^low dose
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.
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 namePA Rist lo dose Bld-aCnc

Basic Attributes

classCOAG
type1  Laboratory
order vs. observationBoth
example UCUM units[arb'U]/mL
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 unitarb U/mL

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

first released
last updated2.68
last change typeMIN  - change to field other than name

Related Names

Agg
Aggr
Arbitrary concentration
Blood
COAGULATION
Hematology
Heme
lo dose
PA
PA Rist
Pl
Platelets
Platelt
Plt
Point in time
QNT
Quan
Quant
Quantitative
Random
RIPA
Thrombocyte
Thrombocytes
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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