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Urea Nitrogen (BUN), 24 Hour Urine

Test Code
UUN24


Preferred Specimen
Urine, 24 hr


Instructions
Collect 24 hour urine and keep refrigerated during and after collection..


Transport Container
Clean container


Transport Temperature
Specimen stable for 4 days if refrigerated.


Reference Range
See report for normal ranges.


Clinical Significance
Urea is the end-product of protein metabolism. Urinary urea nitrogen reflects the amount of protein destruction. Especially in severely ill patients, the urinary Urea Nitrogen is useful in assessing the necessary protein replenishment.




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.