10634-4
LaboratoryComplement C1 esterase inhibitor.functional/Complement C1 esterase inhibitor.total in Serum or Plasma
Definition
Functional C1 esterase inhibitor is reported as % means "percent of functional over mean normal" by many commonly used kits. This is reported by LOINC code 48494-9. Many sites have incorrectly mapped to [LOINC: 10634-4] (functional /Total) which is not the component reported by the commonly used methods.
LOINC 6-Axis Classification
Component
Complement C1 esterase inhibitor.functional/Complement C1 esterase inhibitor.total
Property
MFr
Time Aspect
Pt
System
Ser/Plas
Scale Type
Qn
Method Type
N/A
Details
Class
HEM/BC
Order/Observation
Both
Short Name
C1INH Functional/C1INH Total MFr SerPl
Display Name
Complement C1 esterase inhibitor.functional/Complement C1 esterase inhibitor.total [Mass fraction]
Related Names
Frequently Asked Questions
What is LOINC code 10634-4?
LOINC code 10634-4 identifies "Complement C1 esterase inhibitor.functional/Complement C1 esterase inhibitor.total in Serum or Plasma". Functional C1 esterase inhibitor is reported as % means "percent of functional over mean normal" by many commonly used kits. This is reported by LOINC code 48494-9. Many sites have incorrectly mapped to [LOINC: 10634-4] (functional /Total) which is not the component reported by the commonly used methods.
What does 10634-4 measure?
This code measures Complement C1 esterase inhibitor.functional/Complement C1 esterase inhibitor.total in Ser/Plas. It belongs to the HEM/BC 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.