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| 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
Test CodeUUNR (OE), UNUR (LAB)
CPT Codes
84540
Preferred Specimen
Sterile Container
Patient Preparation
None
Minimum Volume
0.5 mL (1 mL optimal)
Other Acceptable Specimens
Sterile Container
Transport Temperature
Refrigerate
Specimen Stability
2-8°C up to 5 days
Methodology
Colorimetric
Setup Schedule
M, T, W, Th, F, Sa, Su
As received; STAT testing is available
As received; STAT testing is available
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.
Performing Laboratory
Alverno Central Lab
