81742-9
LaboratoryTh-To Ab [Units/volume] in Serum by Line blot
Definition
This term was created for, but is not limited in use to, the submitter's test strip, a membrane strip pre-coated with a specific set of antigens in parallel lines. If antibodies to any of those antigens are present in the patient's serum, they will bind to the specific antigen. The bound patient antibodies are then detected using labelled anti-human antibodies. Various manufacturers classify this method as an immunoblot technique. LOINC uses the immunoblot (IB) method to mean that some electrophoretic/chromatographic separation occurs such that position (size) of the band is part of the assessment (as in Western blot). Because this assay does not involve a separation step but rather uses strips with pre-fixed antigens, the LOINC Method is Line blot.
LOINC 6-Axis Classification
Component
Th-To Ab
Property
ACnc
Time Aspect
Pt
System
Ser
Scale Type
Qn
Method Type
Line blot
Details
Class
SERO
Order/Observation
Both
Short Name
Th-To Ab Ser Line blot-aCnc
Display Name
Th-To Ab Line blot Qn (S)
Related Names
Frequently Asked Questions
What is LOINC code 81742-9?
LOINC code 81742-9 identifies "Th-To Ab [Units/volume] in Serum by Line blot". This term was created for, but is not limited in use to, the submitter's test strip, a membrane strip pre-coated with a specific set of antigens in parallel lines. If antibodies to any of those antigens are present in the patient's serum, they will bind to the specific antigen. The bound patient antibodies are then detected using labelled anti-human antibodies. Various manufacturers classify this method as an immunoblot technique. LOINC uses the immunoblot (IB) method to mean that some electrophoretic/chromatographic separation occurs such that position (size) of the band is part of the assessment (as in Western blot). Because this assay does not involve a separation step but rather uses strips with pre-fixed antigens, the LOINC Method is Line blot.
What does 81742-9 measure?
This code measures Th-To Ab in Ser. It belongs to the SERO 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.