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Test Code Cort Cortisol

Patient Preparation

No special patient preparation required

Collection Method

Venous collection

Minimum Volume

  • Adults: 0.8ml
  • Pediatric: 0.5mL

Container

Lt Green / Plasma Separator / Lithium Heparin

Preferred Specimen

Light Green Top (lithium heparin) plasma

Acceptable Specimens

Serum:

  • Gold Top SST
  •  
  • Red Top


Plasma:

 

  • Light Geen Top (lithium heparin)
  • Purple Top(K2/K3 EDTA)
  • Dark Green (Sodium Heparin)

 

Reference or Target Ranges

Adults Morning hours (7-9am) 5.3 -22.5 ug/dL
  Afternoon hours (3-5pm) 3.4 - 16.8 ug/dL

 

 

Reportable Units

ug/dL

Critical Value

Not defined for this assay

Reasons for Rejection

 


<!-- Rejection-->

 

Hemolysis Threshold 500 mg/dL
Icterus Threshold 20 mg/dL
Lipemia Threshold 1000 mg/dL
Other QNS, contaminated, improperly Labeled, improper specimen type

Specimen Stability

 


<!-- Stability -->

 

Ambient 24 hours
Refrigerated (4°C to 8°C) 4 days
Frozen(-40°C to 0°C) 12 months

Performance Information

 


<!-- Performance information -->

 

Days and Time Performed 24/7
Expected Turn Around Time Stat: 1 hour
Routine: 4 hours
Stat Availability Yes
Performing Bench UH Chemistry
Methodology/Method Description Siemens Atellica – Colorimetric 

Additional Information/Important Notes

Urine or saliva test requests must be submitted to MAYO for testing.

CPT Codes

82533