Urea Nitrogen, Random Urine

Abbrev Code:UBUNR   
Order Code:LAB748Order Name:Urea Nitrogen Random Urine
Vista: Bichromatic rate
CPT Codes: 84540 x1, 84540 x1
Test Includes:Urea nitrogen urine mg/dL
Turnaround Time:Performed and reported 24 hours/day.
Associated Links:

Urine Collection Procedure, Roche Go Live Schedule

Collection Instructions

Specimen:Urine, random collection
Optimal Volume:Submit entire collection; analysis requires 1 mL.
Container:Plastic leakproof container, sterile
Collection Instructions:IVP dye does not interfere with sample analysis.

Processing and Shipping

Specimen Processing:Mix collection well before aliquot is taken. Centrifuge specimens containing red cells or precipitate. Aliquot 5 mL, 1 mL minimum. Store in refrigerator.
Centrifuge specimens containing red cells or precipitate. Urine containing bladder fluid is acceptable. Enter coded comment IRRFL (urine contains bladder irrigation fluid).
Shipping Instructions:Ship at refrigerated temperature.
Stability:2 days at room temperature; 7 days refrigerated; 1 month frozen.
Test Performed at or Referral Lab Chemistry  (Range, Roche-UMMC East, Southdale, UMMC West Bank)


Reference Range:Urine Chemistry Reference Ranges
Use:Evaluate metabolism of urate, including gout and renal stones.

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