Test Overview
Test Methodology
Rate (Urease)
Test Usage
Renal function test, evaluate protein metabolism.
Reference Range *
1-11 years: 5 - 20 mg/dL (0.8-3.3 mmol/L), 12-150 years: 8 - 20 mg/dL (1.3-3.3 mmol/L).
* Reference ranges may change over time. Please refer to the original patient report when evaluating results.
Test Details
Days Set Up
Daily, 24 hours
Analytic Time
2 hours
Soft Order Code
UN
MiChart Code
Urea Nitrogen (BUN)
Synonyms
- BUN
- UN
- Urea, Serum
- UREA NITROGEN
- UNPR
- Urea Nitrogen, Pre-dialysis
- UNPO
- Urea Nitrogen, Post-dialysis
Laboratory
Chemical Pathology
Section
Automation
STAT Availability
STAT requests for this test will be performed on a STAT basis (supervisory staff approval is not required).
Specimen Requirements
Billing
CPT Code
84520
Fee Code
20503
LOINC
3094-0