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Test Compendium

3827: CORTISOL, SERUM

Test Code

  • 3827

Test Synonym

  • Cortisol

Volume

  • 1 mL

Minimum Volume

  • 0.2 mL

Specimen Requirements

  • Serum

Container

  • Serum Separator Tube, Transfer Tube- Serum, Plain Red Top Tube

Storage

  • Refrigerated

Turn Around Time

  • 1 day

Special Instructions

  • 1 ml Serum SST (gel-barrier) or a Red Top. If a Red Top is draw, centrifuge and transfer the serum to a plastic transport tube Due to the circadian rhythm of cortisol levels in serum, sample collection time must be noted

Specimen Stability

  • Serum: 24 hours room temperature 4 days at 2-8 °C, 12 months at -20 °C. Freeze only once.

Reference Range

  • Fasting Sex Message Lines Ref Ranges Unit of Measure
    Reference Range AM:6.0-18.4 PM:2.7-10.5 ug/dL