71805-6
LOINC Code
| LOINC code | 71805-6 | |
|---|---|---|
| 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 (> 0.5) 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 (<0.15) 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 | SRto = Substance 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; Non-protein bound; Po | |
Basic Attributes | ||
| class | CHEM | |
| type | 1 Laboratory | |
| order vs. observation | Cortis F/Cortis | |
| example UCUM units | mol/mol 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 | 2.42 | |
| last change type | MIN - change to field other than name | |
| change reason | mol/mol | |
Related Names | ||
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