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Cortisol, free, serum (New test)
| Item | Value | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Available Stat? | No | |||||||||
| Test code | CRTFS | |||||||||
| Test group | Cortisol | |||||||||
| Performed by | Quest | |||||||||
| Sendout? | Yes | |||||||||
| Method | LC/MS/MS | |||||||||
| Container type | Red top or Lavender top | |||||||||
| Amount to Collect | 4 mL blood | |||||||||
| Sample type | Serum or EDTA plasma | |||||||||
| Preferred volume | 2 mL serum or plasma | |||||||||
| Min. Volume | 0.7 mL serum or plasma | |||||||||
| Processing notes | Aliquot and freeze. Transport to CB frozen. Order Quest test code 21469P. | |||||||||
| Units | µg/dL | |||||||||
| Normal range |
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| Synonyms | Compound F; 11-hydroxycorticosteroids; 11-hydroxycorticoids; 11-OH steroids; 11-OH corticosteroids; Cosyntropin provocative testing; Unconjugated cortisol; Cortisol, unconjugated; Unconjugated F; Unconjucated hydroxycorticoids | |||||||||
| Stability | Room temperature 4 hours, refrigerated 1 week, frozen 2 years | |||||||||
| Turn around times | 3-5 days | |||||||||
| Additional information | Free cortisol is useful in the detection of patients with Cushing's syndrome for whom free cortisol concentrations are elevated. | |||||||||
| CPT coding | 82530-90 | |||||||||
| Last Updated | 2/14/2013 10:58:48 AM | |||||||||
| Entry Number | 1530 |
If you have additional questions regarding this test, please call: 415-353-1667