IgG clearance/Albumin clearance [Ratio] in Urine and Serum or Plasma 78961-0
LOINC Code
| LOINC code | 78961-0 | ||
|---|---|---|---|
| name | IgG clearance/Albumin clearance [Ratio] in Urine and Serum or Plasma | ||
| description | 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] | ||
| status | ACTIVE | ||
Fully-Specified Name | |||
| component | IgG clearance/Albumin clearance | ||
| property | Ratio | ||
| time | Pt = Point in time: To identify measures at a point in time. This is a synonym for “spot” or “random” as applied to urine measurements. | ||
| system | Urine+Ser/Plas Ser = Serum Plas = Plasma | ||
| scale | Qn = Quantitative: The result of the test is a numeric value that relates to a continuous numeric scale. Reported either as an integer, a ratio, a real number, or a range. The test result value may optionally contain a relational operator from the set {<=, <, >, >=}. Valid values for a quantitative test are of the form "7", "-7", "7.4", "-7.4", "7.8912", "0.125", "<10", "<10.15", ">12000", 1-10, 1:256 | ||
| method | |||
Additional Names | |||
| short name | IgG/Alb clear Ur+SerPl-Rto | ||
Basic Attributes | |||
| class | CHEM | ||
| type | 1 Laboratory | ||
| order vs. observation | Both | ||
| formula (readable) | Selectivity index (SI) = (uIgG/sIgG)/(uAlb/sAlb) | ||
| example UCUM units | {ratio} The Unified Code for Units of Measure (UCUM) is a code system intended to include all units of measures being contemporarily used in international science, engineering, and business (www.unitsofmeasure.org) | ||
| example unit | ratio | ||
Associated Observations | |||
LOINC codes that represent optional associated observation(s) for a clinical observation or laboratory test. A LOINC term may represent a single associated observation or panel containing several associated observations. | |||
History/Usage | |||
| first released | |||
| last updated | 2.54 | ||
| last change type | ADD - added | ||
Related Names | |||
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