77727-6
LaboratoryXXX allergen triggered histamine release [Units/volume] in Blood
Definition
Quantitative determination of histamine release in heparinized whole blood incubated with a suspected allergen. This term is based on, but not limited in use to, IBL International's Histamine-Release assay, which incubates whole blood samples with different concentrations of the suspected allergen. Release of histamine occurs upon stimulation of basophilic granulocytes with amounts depending on their sensibility to the allergen. In the Histamine-Release assay, the percent of histamine release falls within the 100% control (= Total Histamine) and the blank value (= Spontaneous Release). Any positive signal greater than 5% release is regarded as allergen specific positive.
LOINC 6-Axis Classification
Component
XXX allergen basophil bound Ab
Property
ACnc
Time Aspect
Pt
System
Bld
Scale Type
Qn
Method Type
LHR
Details
Class
ALLERGY
Order/Observation
Both
Short Name
XXX allergen BasoBnd Ab Qn
Display Name
Unsp allergen triggered histamine release Qn (Bld)
Related Names
Frequently Asked Questions
What is LOINC code 77727-6?
LOINC code 77727-6 identifies "XXX allergen triggered histamine release [Units/volume] in Blood". Quantitative determination of histamine release in heparinized whole blood incubated with a suspected allergen. This term is based on, but not limited in use to, IBL International's Histamine-Release assay, which incubates whole blood samples with different concentrations of the suspected allergen. Release of histamine occurs upon stimulation of basophilic granulocytes with amounts depending on their sensibility to the allergen. In the Histamine-Release assay, the percent of histamine release falls within the 100% control (= Total Histamine) and the blank value (= Spontaneous Release). Any positive signal greater than 5% release is regarded as allergen specific positive.
What does 77727-6 measure?
This code measures XXX allergen basophil bound Ab in Bld. It belongs to the ALLERGY class in the LOINC classification.
What is LOINC?
LOINC (Logical Observation Identifiers Names and Codes) is a universal standard for identifying laboratory and clinical observations. It is maintained by the Regenstrief Institute and used worldwide for health data exchange.