UREA NITROGEN CLEARANCE

General Information

HLAB/HOL Code: URCL
UPHSM LIS Test #: 231
Schedule: Daily
Testing Time: 1 Hour
Testing Lab: UP Health System-Marquette

Specimen Info
Only 1 specimen type required, unless otherwise specified

Volume: 5.0 mL
Temperature: Refrigerate
Tube Type: Urine
Collection Info:
24 Hour Urine Collection
Volume: 0.5 mL
Temperature: Refrigerate
Tube Type: 1 SST Tube
Collection Info:
1. Collect a timed urine sample (usually 12 or 24 hour).
2. Obtain a serum sample within 24 hours of urine collection.
3. Send both urine and serum to the lab for this test.
4. Include the patients height, and weight on the order.
5. Include the urine volume and the time of collection on the order.

Methods

Colorimetric

CPT Codes

84545

* The CPT codes provided 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 payer being billed.

Reference Range

64 - 99 mL/min