Osmolarity in Tear 85382-0
LOINC Code
| LOINC code | 85382-0 | ||
|---|---|---|---|
| name | Osmolarity in Tear | ||
| description | The osmolarity or concentration of the ocular tear fluid will indicate if the patient is being affected by dry eye disease, which would result in a hyperosmolar tear fluid caused by either the reduction of tear fluid production by the lacrimal gland or the abnormal increase in evaporation of the tear fluid on the surface of the eye. A hyperosmolar tear film is toxic to the ocular surface resulting in cell damage, apoptosis, inflammation and an unstable tear film contributing to abnormal visual acuity. This term was created for, but is not limited in use to, the submitter's TearLab Osmolarity System. | ||
| status | ACTIVE | ||
Fully-Specified Name | |||
| component | Osmolarity | ||
| property | Osmolarity = Osmolarity: the concentration of a solution expressed as the total number of solute particles per liter | ||
| 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 | Tear = Tears | ||
| 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 | Osmolarity Tear | ||
Basic Attributes | |||
| class | CHEM | ||
| type | 1 Laboratory | ||
| order vs. observation | Observation | ||
| example UCUM units | mosm/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 | mOsm/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 | |||
| first released | |||
| last updated | 2.61 | ||
| last change type | ADD - added | ||
Related Names | |||
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Copyright © 2024 Regenstrief Institute, Inc. All Rights Reserved. To the extent included herein, the LOINC table and LOINC codes are copyright © 1995-2024, 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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