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

Message
Reference interval for random urine has not been established.


Test Code
3195


Preferred Specimen
24-hour urine (no additive). Refrigerate during collection. Also acceptable: Random urine - use test code 3190 Urine Urea Nitrogen Random. 


Minimum Volume
Refrigerated.


Instructions
A well-mixed 24-hour collection.  Record total volume and collection time interval on collection container and test request form.


Transport Temperature
Refrigerated.


Specimen Stability
Ambient: 48 hours; Refrigerated: 1 week; Frozen: 1 month


Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Urine collected with acid. Specimens stored at room temperature.


Methodology
Spectrophotometry

Setup Schedule
Sun-Sat


Report Available
Within 24 hours




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.