UREA NITROGEN, RANDOM URINE

Test Code

LAB30456

CPT Codes
84540

Preferred Specimen

Urine, random specimen in a clean plastic collection cup

Minimum Volume

0.5 mL urine

Transport Temperature

Refrigerated

Specimen Stability

Ambient: 2 days
Refrigerated: 7 days
Frozen: 1 month

Methodology
Conductometry

Setup Schedule

Sunday-Saturday

Reference Range

Reference intervals: 750 - 1200 mg/dL

While no clear reference intervals exist for random urine urea testing, the range given is an estimate, based on average urine production of 1500 mL/day, derived from the timed reference interval. Urea formation and clearance vary widely according to protein intake and catabolism.

Performing Laboratory
West Virginia University Hospital, Inc.
Camden Clark Medical Center
Princeton Community Hospital
United Hospital Center
Wheeling Hospital

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.