Urea Nitrogen, Urine Timed




Test Mnemonic

UUNT

CPT Codes

  • 84540 - QTY (1)

LOINC ®

3095-7

Performing Laboratory

n/a


Specimen Requirements

Volume Type Container Collect Temperature Transport Temperature Special Instructions
5 mLUrine, timed (well-mixed)Clean containerRefrigerate during collection.Refrigerated 

Minimum Specimen Requirements

Volume Type Container Collect Temperature Transport Temperature Special Instructions
3 mL     

Stability

Environmental Condition Description
Ambient2 days
Refrigerated7 days
Frozen1 month

Days Performed

Mon - Fri

Turnaround Time

8 hours

Methodology

Name Description
Urease 

Reference Range

Urea Nitrogen, Urine Timed
Sex Age From Age To Type Range Range Unit
       Normal0 - 1g/hr

Special Info

Indicate volume and hours of collection on requisition.

Clinical Info

Evaluation of renal function

Clinical Limitation

n/a

Clinical Reference

n/a