Creatinine 24-Hr Urine

Test Code

UCREA24HR

Alias/See Also

CREATUT24H

CPT Codes
82570

Preferred Specimen

Sterile container without additive

Other Acceptable Specimens

Collect urine without using additives. If urine must be collected with a preservative for other analytes, only hydrochloric acid (14 to 47 mmol/L urine, e.g., 5 mL 10 % HCl or 5 mL 30 % HCl per liter urine) or boric acid (81 mmol/L, e.g., 5 g per liter urine) may be used.

Instructions

Include the total volume collected over the 24-hour period if only an aliquot is sent.

Specimen Stability

Room temperature: Plasma\Serum 7 days at 15 - 25°C Urine without preservative 2 days at 15 - 25°C Urine (preservative) 3 days at 15 - 25°C Refrigerated: Plasma\Serum 7 days at 2 - 8°C Urine without preservative 6 days at 2 - 8°C Urine (preservative) 6 days at 2 - 8°C Frozen: Plasma/Serum 3 months at -20°C Urine without preservative 6 months at -20°C Urine (preservative) 3 weeks at -20°C

Performing Laboratory
Frederick Health Laboratory
400 W 7th St
Frederick, MD 21701

Last Updated: April 1, 2022

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.