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Laboratory Test Directory

Cortisol Series (Updated)

Components

Name Method Department Units
Cortisol Series Chemiluminescence
Core Lab, Endocrinology ug/dL

Specimen Requirements

Whole blood

Container Type Container Size Specimen Volume
Preferred

Red tube, (no anticoagulant), No Gel

3 mL 2 mL
Alternate

Red tube, (no anticoagulant), No Gel

Micro sample tube 1 mL
Alternate

Gold tube, (SST) with Gel

3.5 mL 2 mL
Alternate

Green tube (Lithium heparin), No Gel

3 mL 2 mL
Alternate

Green tube (Lithium heparin), No Gel

Micro sample tube 1 mL
Alternate

Green tube (Lithium heparin), with Gel

3 mL 2 mL
Alternate

Green tube (Lithium heparin), with Gel

Micro sample tube 1 mL
Stability

Room temperature - 8 hour(s)
Refrigerated - 8 hour(s)

Specimen Preparation

  • Collect at Main Campus only

Reasons for Rejection

  • Gross icterus
  • Gross hemolysis
  • Specimen collected in wrong tube type
  • Wrong type of specimen

Comments

Collect at Main Campus only. Please note exact collection time on each tube, as well as on requisition, along with type of stimulation. Please send all samples in the series to the lab as a batch after last sample is collected. NOTE: If ACTH testing is also being collected, those samples must be sent to the laboratory immediately after collection and transported on ice. Refer to Clinical Form Link below for additional instructions.

CPT Code

  • 80400