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HelpTest Code BUN Urea Nitrogen (BUN)
Additional Codes
Epic EAP: LAB140
Epic Description: UREA NITROGEN (BUN)
For River Parishes use Soft code BUN (LAB140)
Synonym
BUN
Blood Urea Nitrogen
Urea Nitrogen
Specimen Type
Blood
Specimen Required
| Collection Container | Preferred Volume | Minimum Volume | |
|---|---|---|---|
| Preferred |
Green, Lithium Heparin with Inert Gel |
4.5 mL | 0.5 mL |
| Alternate | Gold, Clot Activator with Inert Gel OR Red, No Anticoagulant, No gel | 4.5 mL | 0.5 mL |
| Preferred Micropuncture | Green Micro, Lithium Heparin with Inert Gel | 2 X 0.6 mL | 1 X 0.6 mL |
| Alternate Micropuncture | Gold Micro, Clot Activator with Inert Gel | 2 X 0.6 mL | 1 X 0.6 mL |
OALH Lab:
| Collection Container | Preferred Volume | Minimum Volume | |
|---|---|---|---|
| Preferred |
Green, Lithium Heparin with Inert Gel |
4.0 mL | 1.0 mL |
| Alternate | Red, No Anticoagulant, No gel | 4.0 mL | 1.0 mL |
Instructions for Collection and Transport
Centrifuge specimen. For non-gel tubes, aliquot plasma serum into plastic vial. Transport refrigerated on freeze packs. If holding overnight, aliquot plasma or serum into a plastic vial and refrigerate.
Aliquot Requirements
Plasma or serum
Optimum 3.0 mL
Minimum 0.25 mL
Performing Lab
Chemistry Lab
Assay Frequency
24 hours
Routine Turnaround Time
1 day
OALH: 240 min
CSR Storage Requirements
Centrifuge specimen. For non-gel tubes, aliquot plasma or serum into plastic vial. Transport to laboratory. If holding overnight, aliquot plasma or serum into a plastic vial and refrigerate.
CPT Code Information
84520