| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # |
Urea Nitrogen, Serum or Plasma
Test Code2042
Alias/See Also
Blood Urea Nitrogen; BUN
Preferred Specimen
One 4 mL plasma separator tube or serum separator tube.
Minimum Volume
1 mL plasma or serum at 2-8°C. (Min: 0.2 mL) Submit specimen in original tube.
Transport Temperature
1 mL plasma or serum at 2-8°C. (Min: 0.2 mL) Submit specimen in original tube.
Specimen Stability
After separation from cells: Ambient: 24 hours; Refrigerated: 5 days; Frozen: 6 months
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Specimens containing sodium fluoride.
Methodology
Quantitative Spectrophotometry
Setup Schedule
Sun-Sat
Report Available
Within 24 hours
Limitations
Allow serum to clot completely at room temperature. Separate serum or plasma from cells ASAP.
