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Urea Nitrogen, Urine Timed

Message
Performed in the Chemistry Laboratory, x5820
09.2018


Test Code
UUNT


CPT Codes
84540

Preferred Specimen
Urine


Minimum Volume
4mL


Transport Container
24hr urine container


Transport Temperature
Room Temperature


Specimen Stability
2 - 8 oC: 7 days


Methodology
Urease

Setup Schedule
This assay is performed 24 hours per day, 7 days per week


Reference Range
12.0 - 20.0 g/day


Clinical Significance
This test is used in the assessment of renal failure. 




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.