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BUN (Blood Urea Nitrogen)
MessageAvailable STAT
This test may be ordered individually or as part of a basic or comprehensive metabolic panel.
Performed in the Chemistry Laboratory x5820
10.2018
This test may be ordered individually or as part of a basic or comprehensive metabolic panel.
Performed in the Chemistry Laboratory x5820
10.2018
Test Code
BUN
CPT Codes
84520
Preferred Specimen
Plasma from a green top (PST) tube
Minimum Volume
1 mL
Instructions
Centrifuge within 2 hours of collection
Transport Container
Green Top (PST) tube
Transport Temperature
Room temperature
Specimen Stability
2 - 8 oC: 7 days
Methodology
Enzymatic (urease) spectrophotometry
Setup Schedule
This assay is performed 24 hours per day, 7 days per week
Reference Range
2 - 29 mg/dL (0 - 5 days)
5 - 17 mg/dL (5 days - 3 years)
7 - 18 mg/dL (3 - 13 years)
8 - 21 mg/dL (13 - 19 years)
6 - 24 mg/dL (> 19 years)
5 - 17 mg/dL (5 days - 3 years)
7 - 18 mg/dL (3 - 13 years)
8 - 21 mg/dL (13 - 19 years)
6 - 24 mg/dL (> 19 years)
Clinical Significance
This test is used in the diagnosis and treatment of certain renal and metabolic diseases.
