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Test Code CORTSTIM Cosyntropoin Stimulation Test

Alias

Cortisol Stimulation Test

Collection Method

Venous Collection

Container

Light Green Lithium Heparin tube

Instructions/Special Handling

None

Preferred Specimen

Light Green (Lithium Heparin) Plasma

Acceptable Specimes

  • Serum
    • Gold SST tube
    • Red tube
  • Plasma
    • Light Green lithium heparin
    • Lavender EDTA

Units

mcg/dL

Reference Ranges

Varies - See individual components

Morning Cortisol (6 - 10am):  6.020 - 18.400 mcg/mL

Afternoon Cortisol (4 - 8pm):  2.680 - 10.500 mcg/mL

Note:  Cortisol results from 0.036 to 8.500 mcg/dL may have a coefficient of variation equal to or greater than 20%

Critical Values

N/A

Reasons for Rejection

Hemolysis N/A
Icterus N/A
Lipemia N/A
Other QNS, Contaminated, Improperly labeled, Improper specimen type

 

Specimen Stability

Ambient (15-25°C) 1 day
Refrigerated (2-8°C) 2 days
Frozen (-20°C) 12 months

 

Performing Site

Boone Health Laboratory

Performance Information

Days/Times Performed Daily 24/7
Expected Turn around Time Same day
Methodology/Method Description Roche Cobas - Electrochemiluminescent immunoassay

CPT Code(s)

82533

Panel Components