Cold agglutinin [Presence] in Serum by 22 degree C incubation   70666-3

LOINC Code


LOINC code70666-3
nameCold agglutinin [Presence] in Serum by 22 degree C incubation
descriptionCold agglutinins are usually determined at refrigerator temperatures (4 degrees C). In positive cases, surgeons may request testing at additional temperatures, including 18 degrees C, room temperature (22 degrees C), and 28 degrees C, to determine how cold the patient's body temperature can be dropped during surgery. In cardiovascular surgery, the heart is cooled to 25°C to slow down metabolic processes. Since the blood of patients with a history of cold antibodies or cold hemagglutinin disease (such as Raynaud's) is likely to contain cold antibodies, such as anti-M, anti-I and anti-I, testing at various temperatures is performed in order to prevent an acute hemolytic episode.
statusACTIVE

Fully-Specified Name

componentCold agglutinin
propertyPrThr  =  Present or threshold:  The Property PrThr stands for “Presence or Threshold”, meaning either a) the actual presence or absence of an analyte, or b) that the amount of analyte detected is over some predetermined threshold.
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
scaleOrd  =  Ordinal:  Ordered categorical responses, e.g., 1+, 2+, 3+; positive, negative; reactive, indeterminate, nonreactive.
method22 deg C incubation

Additional Names

short nameCA Ser Ql 22 deg C inc

Basic Attributes

classSERO
type1  Laboratory
order vs. observationBoth

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 updated2.56
last change typeMIN  - change to field other than name
change reasonThe PrThr property is used for LOINC terms whose results are reported using an ordered categorical scale, regardless of whether or not an internal threshold was used to make that determination. This change was approved by the Laboratory LOINC Committee in June 2016.

Related Names

Agglut
Agglutination
Agglutinins
Agglutins
AGT
CA
Cold agglutinin titration
degree
Ordinal
Point in time
PR
QL
Qual
Qualitative
Random
Screen
Serology
Serum
SR

Copyright © 2023 Regenstrief Institute, Inc. All Rights Reserved. To the extent included herein, the LOINC table and LOINC codes are copyright © 1995-2023, 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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