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A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # |
Cortisol, Free, LC/MS/MS, 24-Hour Urine
Test Code11280X
CPT Codes
82530
Includes
CPT code 81050 may be added at an additional charge for volume measurement
Preferred Specimen
2 mL urine from a 24-hour collection (no preservatives)
Minimum Volume
0.5 mL
Other Acceptable Specimens
25 mL 6N HCl • 10 mL concentrated glacial acetic acid • 10 g boric acid
Instructions
Record 24-hour urine volume on test requisition and urine vial. Reference ranges do not apply to random urine samples.
Transport Temperature
Refrigerated (cold packs)
Specimen Stability
Room temperature: 14 days
Refrigerated: 21 days
Frozen: 90 days
Refrigerated: 21 days
Frozen: 90 days
Methodology
Liquid Chromatography/Tandem Mass Spectrometry (LC/MS/MS)
Setup Schedule
Night Sets up 6 days a week.
Reference Range
Cortisol, Free, 24-Hr Urine
Creatinine, 24-Hour Urine
Adult | 4.0-50.0 |
Pediatric | |
1-4 Years | 0.9-8.2 mcg/24 hrs |
5-9 Years | 1.0-30.0 mcg/24 hrs |
10-13 Years | 1.0-45.0 mcg/24 hrs |
14-17 Years | 3.0-55.0 mcg/24 hrs |
Creatinine, 24-Hour Urine
<3 Years | Not established | |
3-8 Years | 0.10-0.80 g/24 hours | |
9-12 Years | 0.20-1.40 g/24 hours | |
13-17 Years | 0.40-1.90 g/24 hours | |
>17 Years | 0.50-2.15 g/24 hours |
Clinical Significance
Urinary Free Cortisol is useful in the detection of patients with Cushing's syndrome for whom Free Cortisol concentrations are elevated.