Test Name
UREA
Aliases
BLOOD UREA NITROGEN
Abbreviations
BUN
Test Classification
INDIVIDUAL
Department
ROUTINE CHEMISTRY
Sub Department
-
TAT Category
BUSINESS (WORKING) TIME
Estimated TAT
3
TAT Units
HOURS
Test Requirements
Serum in plain tube (red top) or SST tube (yellow top) or in a separation vial. Centrifuge tubes within 1 hour. Separate centrifuged serum in plain tubes within 1 hour.
SHIPPING/ TRANSPORTATION REQUIREMENTS
Shipping Temperature: Refrigerated
ANALYTE STABILITY
Room temperature: 7 days at 20–25°C │ Refrigerated: 7 days at 2–8°C │ Frozen: 3 months at -20°C.
Clinical Utility
Kidney (renal) function assessment. Monitoring patients undergoing dialysis.
Last Review
26th Feb 2026