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Test Code CORT Cortisol Level

Important Note

Disclaimer: This assay has the potential to be falsely low in individuals who consume supplements containing biotin (commonly marketed as hair and nail supplements). Patients should not take these supplements for a minimum of 8 hours prior to blood collection.

Specimen Collection Information

 Specimen  Min. Test Volume Collection Container Special Handling
Blood 0.1 mL Light Green (lith. heparin) top
Gold top
Marble Red top
 

Interpretive Data

Assay Interpretive Data
Cortisol

Reference ranges:

AM (6-10am): 4.8-19.5 ug/dL

PM (4-8pm) : 2.5-11.9 ug/dL

Specimen Stability

7 days at 2-8°C

Day(s) Performed

Monday - Sunday

CPT

82533

LOINC

2143-6