Laboratory Medicine
Test catalogue
Blood Urea Nitrogen (Urea, BUN) | |
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Test NameBlood Urea Nitrogen (Urea, BUN) |
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Specimen Type / RequirementsContainer Type = 1 Gold Top (SST) Minimum Testing Volume = 1 ml serum Tube must fill to at least ½ or greater of its vacuum capacity |
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Specimen HandlingCollection Instructions: Serum or heparinized plasma collected with or without gel separator. Write your initials, date and time of collection on the collection label or requisition. Special Instructions Serum or heparinized plasma free from hemolysis collected with or without gel separator. Separate serum or plasma from cells within 2 hours of collection Rejection Criteria: Gross hemolysis, Unlabeled or Not Sufficient Quantity Samples will be rejected. Stability:Urea is stable at room temperature for 24 h, refrigerated for 1 week and for 6 months at -15 to -20°C. Transportation: Send sample to core lab as soon as possible. |
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Required Documentation |
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Turnaround Time (TAT)1 hour for Trauma / Stat - 2 hours for routine |
Test Utilization |
Reference Value3.0 – 7.0 mmol/L |
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Test CodeUREA |
MethodologySpectrophotometric (Kinetic rate method) |
Testing LocationSMH-Biochemistry |
Other InformationLast Updated: June 06, 2019
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