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Test Compendium

Test Name


Test Code

  • 3840

Test Synonym

  • PM Cortisol

Minimum Volume

  • 0.2 mL

Specimen Type

  • Serum

Primary Container

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

Transport Temp

  • Refrigerated


  • 1 day

Specimen Requirements

  • 1 mL SERUM DRAWN BETWEEN THE HOURS OF 4pm-8pm 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