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Laboratory Test Directory

Cortisol

Components

Name Method Department Units
Cortisol 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 3 mL
Alternate

Red tube, (no anticoagulant), No Gel

Micro sample tube 1 mL
Alternate

Gold tube, (SST) with Gel

3.5 mL 3 mL
Alternate

Green tube (Lithium heparin), No Gel

3 mL 3 mL
Alternate

Green tube (Lithium heparin), No Gel

Micro sample tube 1 mL
Alternate

Green tube (Lithium heparin), with Gel

3 mL 3 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

  • Mix heparin tube by gentle inversion immediately after collection
  • Transport to laboratory as soon as possible

Serum Spun, Plasma Spun

Container Type Container Size Specimen Volume
Preferred

Red tube, (no anticoagulant), No Gel

3 mL 1 mL
Alternate

Red tube, (no anticoagulant), No Gel

Micro sample tube 1 mL
Alternate

Gold tube, (SST) with Gel

3.5 mL 1 mL
Alternate

Green tube (Lithium heparin), No Gel

3 mL 1 mL
Alternate

Green tube (Lithium heparin), No Gel

Micro sample tube 1 mL
Alternate

Green tube (Lithium heparin), with Gel

3 mL 1 mL
Alternate

Green tube (Lithium heparin), with Gel

Micro sample tube 1 mL
Stability

Room temperature - 8 hour(s)
Refrigerated - 14 day(s)
Frozen - 30 day(s)

Specimen Preparation

  • Mix heparin tube by gentle inversion immediately after collection
  • Transport to laboratory as soon as possible
  • Centrifuge, remove plasma/serum and refrigerate

Reasons for Rejection

  • Specimen collected in wrong tube type
  • Wrong type of specimen

Comments

Please note exact collection time. STAT orders can be processed daily from 0730 - 2200.

CPT Code

  • 82533