Urea Nitrogen, Urine, Random

Message

Sendout, Mayo test code: URCON

Test Code

LAB5210999

Alias/See Also

BUN
URCON

CPT Codes
84540

Preferred Specimen

4 mL random urine

Minimum Volume

1 mL

Instructions

1. Collect a random urine specimen.
2. No preservative.

Transport Container

Plastic tube

Transport Temperature

Refrigerated

Specimen Stability

Refrigerated (preferred): 14 days
Frozen: 30 days
Ambient: 7 days

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)

All specimens will be evaluated at Mayo Clinic Laboratories for test suitability.

Methodology
Kinetic Ultraviolet Assay

FDA Status
Approved

Setup Schedule

Monday through Sunday

Report Available

1-24 days

Reference Range

Included with report

Clinical Significance

Assessment of kidney failure (prerenal vs acute kidney injury)

Performing Laboratory
Mayo Clinic Laboratories, Rochester, Minnesota

Additional Information
Urea, Random, Urine

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.