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Test Requirements
 
Title
CORTISOL, FREE, URINE
Specimen Requirement
<p>24-hour urine collection required. Refrigerate during collection. Mix well and send 2.0 mL minimum aliquot refrigerated in a screw-capped plastic urine container.</p> <p>Record total volume on request form and sample label.</p>
Methodology
 
Stability
Refrigerated 7 days; Frozen 14 days
Reference Range
By Report*
Turnaround
1-4 days Performed Tues, Fri
Clinical Use
<p>Assess adrenal function; particularly useful in the diagnosis of Cushing syndrome. Recent data suggest that urinary free cortisol concentrations can be significantly altered in patients taking inhaled corticosteroids</p>
Test Code
UFCPW
 

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