78961-0
LaboratoryIgG clearance/Albumin clearance [Ratio] in Urine and Serum or Plasma
Definition
The ratio of IgG to albumin clearances, the selectivity index, is useful in the diagnosis and management of proteinuria. Both IgG and albumin levels are measured in serum and urine and the selectivity index (SI) is determined where SI = (uIgG/sIgG)/(uAlb/sAlb) or (uIgG/sIgG * sAlb/uAlb).[PMID: 20921302]
LOINC 6-Axis Classification
Component
IgG clearance/Albumin clearance
Property
Ratio
Time Aspect
Pt
System
Urine+Ser/Plas
Scale Type
Qn
Method Type
N/A
Details
Class
CHEM
Order/Observation
Both
Short Name
IgG/Alb clear Ur+SerPl-Rto
Display Name
IgG clearance/Albumin clearance (U+S/P) [Ratio]
Related Names
Frequently Asked Questions
What is LOINC code 78961-0?
LOINC code 78961-0 identifies "IgG clearance/Albumin clearance [Ratio] in Urine and Serum or Plasma". The ratio of IgG to albumin clearances, the selectivity index, is useful in the diagnosis and management of proteinuria. Both IgG and albumin levels are measured in serum and urine and the selectivity index (SI) is determined where SI = (uIgG/sIgG)/(uAlb/sAlb) or (uIgG/sIgG * sAlb/uAlb).[PMID: 20921302]
What does 78961-0 measure?
This code measures IgG clearance/Albumin clearance in Urine+Ser/Plas. 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.