CORTISOL

Mnemonic

CORT

Specimen Collection Requirements

Collect

Serum, one 5.0 mL gold (SST), 7.0 mL red top tube or Li Heparin Plasma

Handling

Allow serum to clot completely at room temperature (minimum: 30 minutes). Centrifuge and separate serum from cells within 2 hours or collection.

Preferred Volume

1.0 mL

Minimum Volume

0.3 mL

Transport

Refrigerated (2-8°C)

Rejection Criteria

Grossly hemolyzed specimens

Stability

AFTER SEPARATION FROM CELLS: Ambient (20-25°C): 8 hours; Refrigerated (2-8°C): 48 hours; Frozen (at or below -20°C): 2 months

Testing Information

Performed

Sun - Fri

Method

Chemiluminescent Immunoassay

Referral Lab

Samaritan Health Services Laboratories

Reference Values

Reference Values

ADULT: 5.0-25.0 µg/dL
For day active persons:
Morning: 5.0-25.0 µg/dL
Evening: 2.0-12.0 µg/dL

CPT Codes

86161

Last Updated: Thursday, January 5, 2017 03:42:05 AM