A B C D E F G H I J K L M N O P Q R S T U V W X Y Z #

Urea Nitrogen, Urine Random

Message
Performing Lab: Regions


Test Code
3773


Alias/See Also
Sunquest: UNR


CPT Codes
84300

Preferred Specimen
0.2 mL Random Urine


Minimum Volume
0.1 mL


Instructions
No preservative required


Transport Container
Sterile Container


Transport Temperature
Refrigerated


Specimen Stability
Refrigerated: 7 days


Methodology
Colorimetric

Setup Schedule
Daily


Report Available
Same Day


Reference Range
No reference range established


Clinical Significance
Urea nitrogen is the end product of breakdown of proteins in the body. In individuals with normal kidney and liver functions, urea is excreted via urine. By testing for urine urea nitrogen, clinicians can assess one's nitrogen balance. Calculating nitrogen balance is a useful tool in assessing adequacy of protein provision in clinical setting. Among the renal causes of increased levels are acute glomerulonephritis, chronic nephritis, polycystic kidney, nephrosclerosis, and tubular necrosis. Any type of obstruction of the urinary tract is a postrenal cause for elevated urea nitrogen levels.




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.