Urine Urea Nitrogen

Test Code
URUN


CPT Codes
84540

Preferred Specimen
Urine


Minimum Volume
2 mL


Transport Container
UA Cup


Transport Temperature
Refrigerated


Specimen Stability
Room Temperature: Unacceptable
Refrigerated: 8 hours unpreserved urine (4 days with Thymol preservative)
Frozen: Unacceptable


Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Unlabeled specimens, Specimens not received within stability


Reference Range
350 - 1000 mg/dL


Performing Laboratory
This test is performed at the following locations:
  1. MercyOne Siouxland Medical Laboratory



Last Updated: September 7, 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.