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Test Code NBLD0163 Urea Nitrogen, Random, Urine

Useful For

A renal function test. Urea nitrogen reflects ratio between urea production and clearance. Increased blood urea nitrogen may be due to increased production or decreased excretion.


Urease with Glutamate Dehydrogenase (GLDH)/Bichromatic Rate

Performing Laboratory

Bozeman Health Laboratory Services

Specimen Requirements

Specimen Type: Urine

Container/Tube: Clean container

Specimen Volume: 10 mL

Collection Instructions:

1. Collect a random urine collection.

2. No preservative.

Specimen Transport Temperature


Specimen Stability


Specimen Type Temperature Time
Urine Ambient 2 hours
  Refrigerated 4 days


Reference Values

No established reference values

Day(s) Test Set Up

Monday through Sunday

Test Classification and CPT Coding