UREA NITROGEN, URINE, RANDOM

Test Code

UNUR

CPT Codes
84540

Preferred Specimen

Sterile Container

Minimum Volume

0.5 mL

Instructions

Refrigerate specimen

Transport Temperature

Refrigerate

Specimen Stability

2-8°C up to 5 days

Methodology
Colorimetric

Setup Schedule

M, T, W, Th, F, Sa, Sun

Report Available

Same day tested at the performing laboratory.

Reference Range

The reference range is not available for a random sample.

Clinical Significance

Urine urea nitrogen is a test that measures the amount of urea in the urine. Urea nitrogen is a waste product resulting from the breakdown of protein and is excreted by the kidneys. This test is mainly used to check protein balance. The test measures the amount of urea the kidneys excrete and can show how well the kidneys are working.

Performed By
Alverno Laboratories

Performing Laboratory
Alverno Central Lab
NCHB1 (Chemistry, Beckman AU)

Last Updated: July 5, 2023

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.