Glutamate decarboxylase 65 Ab [Moles/volume] in Cerebral spinal fluid 53708-4
LOINC Code
| LOINC code | 53708-4 | ||
|---|---|---|---|
| name | Glutamate decarboxylase 65 Ab [Moles/volume] in Cerebral spinal fluid | ||
| description | Glutamic acid decarboxylase (GAD65) is an enzyme that is produced primarily by pancreatic islet cells. Glutamic Acid Decarboxylase antibodies are present in the majority of individuals with new-onset diabetes and in individuals in the prediabetic phase of the disease. It appears early in the disease process prior to clinical symptoms and can be used to predict who will develop IDDM (insulin-dependent diabetes mellitus). Measurement of GAD65 antibody can be of use in distinguishing insulin-dependent from non-insulin dependent diabetics when the clinical history is ambiguous. GAD65 autoantibodies are often markedly elevated in patients with the stiff-person syndrome (also known as stiff-man syndrome), a condition that is associated with fluctuating stiffness and paroxysmal spasms of the trunk and legs. Information from http:www.labcorp.com (Laboratory Corporation of America), accessed 2008 02 13. | ||
| status | ACTIVE | ||
Fully-Specified Name | |||
| component | Glutamate decarboxylase 65 Ab | ||
| property | SCnc = Substance Concentration | ||
| 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 | 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 | GAD65 Ab CSF-sCnc | ||
Basic Attributes | |||
| class | SERO | ||
| type | 1 Laboratory | ||
| order vs. observation | Both | ||
| example UCUM units | nmol/L 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 | nmol/L | ||
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 | |||
| test rank | 6334 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 | ||
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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