Urea Nitrogen, Body Fluid

Test Code

17368

CPT Codes
84520

Preferred Specimen

1 mL body fluid collected in a sterile, leak-proof vial

Minimum Volume

0.25 mL

Instructions

Centrifuge specimen to remove any cellular material. Indicate specimen source.

Transport Temperature

Refrigerated (cold packs)

Specimen Stability

Room temperature: 24 hours
Refrigerated: 7 days
Frozen: 30 days

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)

Gross hemolysis

Methodology
Photometric Urease

FDA Status
This test has been modified from the manufacturer's instructions. Its performance characteristics were determined by Mayo Clinic in a manner consistent with CLIA requirements. This test has not been cleared or approved by the U.S. Food and Drug Administration

Setup Schedule

Set up: Daily; Report available: Next day

Reference Range

See Laboratory Report

Performing Laboratory
Mayo Clinic Laboratories
200 First Street SW
Rochester, MN 55905

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.