55845-2
Cortisol Free [Mass/volume] in 24 hour Urine by Radioimmunoassay (RIA)
Active
Part Description
LP29041-8 Cortisol.free
Cortisol is a glucocorticoid produced in the adrenal cortex. A synthetic version of this same chemical is called hydrocortisone and manufactured as medication. Cortisol is not to be confused with cortisone, a closely related compound with much less (PubChem calls it "inactive") biologic activity. Cortisone is also offered as a drug, and it is converted to cortisol (the active form) in the liver. They both have a circadian rhythm with peak in the AM (around 8AM) and trough in the evening (around midnight), but this shifts according to sleep habits (work shifts). The morning measurement, which should be high, is most useful for diagnosing Addison's disease (too little cortisol) and the evening measurement, which should be low, is the most useful for diagnosing Cushing's disease (too much cortisol). Salivary cortisol may be a more sensitive measure than serum or plasma.
Source: Regenstrief Help
Fully-Specified Name
- Component
- Cortisol.free
- Property
- MCnc
- Time
- 24H
- System
- Urine
- Scale
- Qn
- Method
- RIA
Additional Names
- Short Name
- Cortis F 24h Ur RIA-mCnc
- Display Name
- Cortisol Free RIA (24H U) [Mass/Vol]
- Consumer Name Alpha Get Info
- Free cortisol, Urine
Basic Attributes
- Class
- CHEM
- Type
- Laboratory
- First Released
- Version 2.29
- Last Updated
- Version 2.70
- Order vs. Observation
- Both
Member of these Groups Get Info
LOINC Group | Group Name |
---|---|
LG43176-3 | Cortisol.free| |
LG13470-6 | Cortisol.free| |
LG34708-4 | Cortisol.free| |
Language Variants Get Info
Tag | Language | Translation |
---|---|---|
de-DE | German (Germany) | Cortisol.frei: Synonyms: RIA |
es-ES | Spanish (Spain) | Cortisol libre: Synonyms: Cuantitativo |
es-MX | Spanish (Mexico) | Cortisol. Gratis: |
et-EE | Estonian (Estonia) | Kortisool.vaba: Synonyms: Kvantitatiivne Radioimmuunmeetod Uriin |
fr-CA | French (Canada) | Cortisol.libre: |
fr-FR | French (France) | Cortisol libre: |
fr-BE | French (Belgium) | Cortisol.libre: Synonyms: Radio-immuno-essai |
it-IT | Italian (Italy) | Cortisolo.libero: Synonyms: 24 Ore Chimica Concentrazione di Massa Cortisolo Libero Dosaggio radioimmulogico (RIA) |
nl-NL | Dutch (Netherlands) | cortisol.vrij: Synonyms: 24U |
pt-BR | Portuguese (Brazil) | Cortisol.livre: Synonyms: ; |
ru-RU | Russian (Russian Federation) | Кортизол.свободный: Synonyms: Количественный Массовая концентрация Радиоиммуноанализ (РИА) |
tr-TR | Turkish (Turkey) | Kortizol.serb: |
zh-CN | Chinese (China) | 皮质醇.游离型: Synonyms: 17-羟皮质甾酮; |
Example Units
Unit | Source |
---|---|
ug/L | Example UCUM Units |
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