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Test Compendium

Test Name


Test Code

  • 3178

Test Synonym

  • Cortisol, Total, LC/MS

Minimum Volume

  • 0.1 mL

Specimen Type

  • Serum Or Plasma

Primary Container

  • Serum Separator Tube, Plain Red Top Tube, Lavender Top Tube, Green Top Tube, Transfer Tube- Serum, Transfer Tube- Plasma

Transport Temp

  • Frozen


  • 8 days

Specimen Requirements

  • 0.5mL Serum (preferred) also acceptable Plasma (ship Frozen)

Specimen Retention

  • SST (Gel-barrier tube) or Red Top tube (serum preferred) also lavender-top (EDTA) tube or green-top (heparin) tube for plasma. Serum/plasma must be separated from cells within 45 minutes of venipuncture. Send serum/plasma in a plastic transport tube. Stable only 2 days refrigerated, recommend freezing if transport to lab is delayed