Lactate dehydrogenase in body fluid/Lactate dehydrogenase in serum 75639-5
LOINC Code
| LOINC code | 75639-5 | ||
|---|---|---|---|
| name | Lactate dehydrogenase in body fluid/Lactate dehydrogenase in serum | ||
| description | LDH body fluid to LDH serum ratio aids in determining whether a fluid is an exudate (actively secreted fluid, e.g. due to inflammation), or transudate (passively secreted fluid, due to high hydrostatic pressure or low oncotic pressure). The usual criterion is that a ratio of fluid LDH versus upper limit of normal serum LDH of more than 0.6 or 2⁄3 indicates an exudate, while a ratio of less indicates a transudate. | ||
| status | ACTIVE | ||
Fully-Specified Name | |||
| component | Lactate dehydrogenase.body fld/Lactate dehydrogenase.serum | ||
| 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 | Body fld+Ser/Plas Body fld = Body fluid, unspecified 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 | LDH.body fld/SerPl | ||
Basic Attributes | |||
| class | CHEM | ||
| type | 1 Laboratory | ||
| order vs. observation | Both | ||
| 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 | 2.50 | ||
| 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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