4549-2
LaboratoryHemoglobin A1c/Hemoglobin.total in Blood by Electrophoresis
Definition
Changing from the property from Mass fraction to substance fraction has not effect on the meaning when the molecular weight of the numerator and the denominator are the same (for practical purposes). These terms had had a property of MFR in the past and we changed to SFR because we thought the LOINC community preferred SFR for HbA1c. But we mis understood the preference is to use the MFR variant- so we have changed back.
LOINC 6-Axis Classification
Component
Hemoglobin A1c/Hemoglobin.total
Property
MFr
Time Aspect
Pt
System
Bld
Scale Type
Qn
Method Type
Electrophoresis
Details
Class
CHEM
Order/Observation
Both
Short Name
HbA1c MFr Bld Elph
Display Name
HbA1c Elph (Bld) [Mass fraction]
Related Names
Frequently Asked Questions
What is LOINC code 4549-2?
LOINC code 4549-2 identifies "Hemoglobin A1c/Hemoglobin.total in Blood by Electrophoresis". Changing from the property from Mass fraction to substance fraction has not effect on the meaning when the molecular weight of the numerator and the denominator are the same (for practical purposes). These terms had had a property of MFR in the past and we changed to SFR because we thought the LOINC community preferred SFR for HbA1c. But we mis understood the preference is to use the MFR variant- so we have changed back.
What does 4549-2 measure?
This code measures Hemoglobin A1c/Hemoglobin.total in Bld. It belongs to the CHEM 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.