49029-2
LOINC Code
| LOINC code | 49029-2 | |
|---|---|---|
| name | ||
| description | Determining the ratio of urinary-free cortisol to cortisone is useful in evaluating patients with apparent mineralocorticoid excess (AME) syndrome and other forms of adrenal insufficiency. Higher ratios are observed in patients with AME syndrome and indicate insufficient levels of 11-beta-hydroxy steroid dehydrogenase type 2 (11-beta HSD2), which converts cortisol to cortisone. Lower ratios suggests low activity of the 11-beta-HSD1 enzyme, which converts cortisone to cortisol, and may explain reduced effectiveness of cortisone treatment. | |
| status | ACTIVE | |
Fully-Specified Name | ||
| component | Cortisol.free/Cortisone.free | |
| property | MRto = Mass 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 | |
| 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 | 11-beta HSD; 11-beta-HSD1; 11-beta-HSD2; 11-beta-hydroxy steroid dehydrogenase; 11-ß-HSD1; 11-ß-HSD2; 17-Hydroxycorticosterone; c155; Chemistry; Compound E; Compound F; Coritsol; Cort; Cortis F; Cortisone free; F; FR; hydrocortisone; Mass concentration ra | |
Basic Attributes | ||
| class | CHEM | |
| type | 1 Laboratory | |
| order vs. observation | Cortis F/Cortis | |
| example UCUM units | ug/ug 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) | |
History/Usage | ||
| first released | ||
| last updated | 2.73 | |
| last change type | MIN - change to field other than name | |
| change reason | ug/ug | |
Related Names | ||
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