Cortisol, Free, Random U

• CPT Code: 82530
• LOINC:
• Specimen Type: Random urine
• Frequency: Setup: Sun-Fri; analytic time 2 days
• Instructions: 5mL urine from random collection. Frozen in plastic tube. Min 3mL.
• Text: Useful for Investigating suspected hypercortisolism when a 24-hour collection is prohibitive (ie, pediatric patients). Random urine cortisol results are less reliable than results obtained from properly collected and complete 24-hour urine specimens, which are not affected by diurnal variations in cortisol levels. Components: Z1157 Creatinine, Random; Z1158 Cortisol/Creatinine Ratio; Z1159 Cortisol, u; Z1160 Hours, Cort; Z1161 TV, Cort.
• Methodology: Enzymatic colorimetric; Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS)