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Cortisol - AM, PM or random
Test Name:
Cortisol - AM, PM or random
Synonyms:
Corticosteroid
Hydrocortisone
Ordering Information:

Test

Collect Time

Cortisol, AM

0700 – 1000 hrs

Cortisol, PM

1500 – 1800 hrs

Cortisol, random

No time restrictions


Collection Device/Tube Type:
1. EDM Base Lab: 5 mL blood - GOLD SST (gel)
2. CGY DSC: 4.5 mL blood - MINT LIHEP PST (gel)
3. NOTE: The preferred tube type at each testing site is acceptable at the alternate site
Collection Instructions:
Record time of collection on the specimen and the requisition
Submission Requirements:
1 mL serum or lithium heparin plasma

Frequency of Testing:
Daily
Reference Range:
Comments:
Calgary DSC:
•  Biotin taken in doses >1 mg/day may interfere. For more information, see Biotin Interference

Last Reviewed:
03 May 2023