Albumin in CSF/Albumin in Serum or Plasma 1756-6
LOINC Code
| LOINC code | 1756-6 | ||||
|---|---|---|---|---|---|
| name | Albumin in CSF/Albumin in Serum or Plasma | ||||
| description | The albumin quotient (AQ; CSF albumin/serum or plasma albumin x 100) is an important measurement to quantify the blood-brain barrier function. Normal function of the AQ barrier depends on the age of the patient; in newborns, a higher permeability may be observed. | ||||
| status | ACTIVE | ||||
Fully-Specified Name | |||||
| component | Albumin.CSF/Albumin.SerPl | ||||
| property | RelRto = Relative 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 | Ser/Plas+CSF Ser = Serum Plas = Plasma CSF = Cerebral spinal fluid | ||||
| 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 | Alb CSF/SerPl | ||||
Basic Attributes | |||||
| class | CHEM | ||||
| type | 1 Laboratory | ||||
| order vs. observation | Both | ||||
| formula (readable) | ([CSF albumin]/[serum or plasma albumin]) x 100 | ||||
| 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. | |||||
Member of these Panels | |||||
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History/Usage | |||||
| test rank | 2790 of 2000 most commonly performed tests by labs in USA | ||||
| first released | |||||
| last updated | 2.73 | ||||
| last change type | MIN - change to field other than name | ||||
| change reason | Added specimen of serum to existing term since the albumin quotient (AQ) of csf/serum is comparable to AQ of csf/plasma. | ||||
Related Names | |||||
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Copyright © 2023 Regenstrief Institute, Inc. All Rights Reserved. To the extent included herein, the LOINC table and LOINC codes are copyright © 1995-2023, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee. See https://loinc.org/license for the full LOINC copyright and license.
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