Epic Code LAB61 Cortisol
Interface Order Alias
10113
Ordering Instructions
Note: Routine Cortisol does not need to be scheduled.
Grand Rapids: For scheduling ACTH Stimulation testing, please call the Spectrum Health Infusion Clinic at 616-486-6099 in Grand Rapids.
United Hospital: For scheduling ACTH Stimulation testing, contact the Cancer Center at 616-225-9330.
Collection Instructions
Specimen Collection: Blood
Container(s): 4.5 mL Mint Green Top (Lithium Heparin Gel) or 5.0 mL Gold Top (Serum Separator-SST Gel)
Preferred Volume to Collect: 4.5 mL
Minimum Volume to Collect: 1.0 mL
Neonate Volume to Collect: 0.5 mL
Capillary collect ok? Y
Microtainer acceptable: Y
Collection Instructions:
- Indicate draw time on specimen.
- After collection, gently invert tube 8-10 times.
- Specimen should be processed within 2 hours – See Processing Instructions.
Processing Instructions (Laboratory, Outpatient or Off-site collection)
Processed Specimen: Plasma or Serum
Centrifuge/Spin: Yes
Aliquot: Not needed
Processing Instructions:
- Plasma is preferred specimen type
- Green Tube/Plasma: Centrifuge after collection.
- Gold Tube/Serum: Allow blood to clot for 30 minutes in a vertical position and centrifuge within 2 hours.
Transport Temperature: Refrigerate
Specimen Transport Temperature
Refrigerated
Specimen Stability
Ambient: 12 hours
Refrigerated: 72 hours
Frozen: aliquot plasma/serum for longer storage
Laboratory Retention: 72 hours
Test Frequency
Available daily, usual TAT 1 day.
Reference Range
CHW:
- A.M.: 6.0 – 22.0 µg/dL
- P.M.: 3.0 – 14.0 µg/dL
CHS:
- Morning: 6.0-18.4 µg/dL
- Afternoon: 2.7-10.5 µg/dL
- Post-Stimulation: >20.0 µg/dL
Performing Department
Chemistry
Performing Department Laboratory Location
CHW:
Corewell Health Reference Laboratory, Grand Rapids, MI
Corewell Health Blodgett Laboratory, Grand Rapids, MI
CHS:
Corewell Health Lakeland St. Joseph Laboratory, St. Joseph, MI
Methodology
Electrochemiluminescence Immunoassay (ECLIA)
CPT
82533
CDM Code
3018253302
Epic Test ID
1230100523
LOINC
Cortisol Lvl: 2143-6
Mayo Access Code
SHO6520
Reviewed Date
3/7/2024
Updated Date
3/14/2024 - Reference Range
5/2/2025 - CHS info added