Specimen:
Collect
- One SST
Also Acceptable:
- One Green Top (Li Heparin)
- One Lavender (EDTA)
- One Pink Top (EDTA)
- One Red Top
Submit
- 1 mL (Min:0.5 mL) Serum . Submit Refrigerated. Submit in a Standard Transport Tube.
Also Acceptable:
- 1 mL (Min:0.5 mL) Plasma . Submit Refrigerated. Submit in a Standard Transport Tube.
Special Handling
- Avoid Repeated Freeze/Thaw Cycles
- Minimize air exposure
- For patients receiving therapy with high biotin doses (>5 mg/day), no laboratory test specimen should be collected until at least 8 hours after the last biotin administration.
Stability
Ambient: 1 Day(s); Refrigerated: 4 Day(s); Frozen: 12 Month(s); Incubated: Unacceptable
Methodology
- Electrochemiluminescence Immunoassay (ECLIA)
Performed
Mon-Fri
Reported
1-3 Day(s)
CPT Codes
- 82533
Interpretive Data
Cortisol reference range varies depending on time of draw, see reference ranges below.
Cortisol Reference Range:
Cortisol (AM) = 6.02-18.4 ug/dL
Cortisol (PM) = 2.68-10.5 ug/dL
Biotin in specimens taken from patients on high-dose biotin therapy or supplements may intefere with this test and cause inaccurate test results. It is recommended that for patients receiving therapy with high biotin doses (> 5 mg/day), no laboratory test specimen should be collected until at least 8 hours after the last biotin administration.
Components
- 2724 - CORTISOL, RANDOM
Last Updated: October 26, 2024 @ 9:13 am
Disclaimer:
It is preferable to locate tests on the website and not rely on printed test information, which may soon be out of date. Updated test information can only be guaranteed by using this website.
