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Test Code UUREA Urea Nitrogen Urine, Random LAB748

Test Method

Enzymatic-Conductivity Rate Method; Beckman DXC600


Testing is performed Monday through Sunday.

Typically completed within 4 hours

Useful For

Assessment of protein intake and/or nitrogen balance

Specimen Requirement

0.5 mL urine is required.

CPT Code Information

84540 Chemistry: Urea Nitrogen; Urine

Reference Values

Reference values are not established for random urine specimens.
Results are subject to interpretation by the clinician.

LOINC Code Information

2665-8 Nitrogen [Mass/Time] In Urine

Additional Specimen Collection Information

Collect a random urine specimen in a sterile container. No
preservative is required. Label the specimen appropriately with two
identifiers, patient name and another identifier, (patient ID
number, DOB, etc.) include date and time of collection. Store the
urine specimen refrigerated and transport to the lab within 48