Urea Nitrogen, Random Urine
Test Summary
This quantitative urea nitrogen test, performed with a random urine specimen, may help estimate nitrogen balance and determine protein need in patients in critical conditions or receiving intravenous administration of nutrition
Aliases
- BUN (Random Urine)
Specimen Collection
Special Instructions
N/A
Preferred Specimen
2 mL fresh Urine
Minimum Volume
1 mL
Instructions
Obtain specimen in urine collection cup and transfer 2 mL to a screw-top transport tube.
Patient Preparation
N/A
Storage
Screw-top plastic transport tube
Transport Temperature
Refrigerated
Specimen Stability
- Room Temperature = 2 days
- Refrigerated = 7 days
- Frozen = 1 month
Limitations
N/A
Other Acceptable Specimens
N/A
Unacceptable Specimens
Incorrect specimen type, insufficient sample volume, improper storage conditions, exceeds specimen stability guidelines, contaminated sample.
Order Code
UUNR
EPIC (Premier) Code
LAB403
Includes
N/A
CPT Code
- 84540
Billing Code
- 300406
CPT Statement
Methodology
Spectrophotometry (SP)
FDA Status
FDA Approved
Physician Attestation of Informed Consent
N/A
Testing Laboratory
CompuNet Clinical Laboratories, LLC
2308 Sandridge Drive
Moraine OH, 45439
2308 Sandridge Drive
Moraine OH, 45439
Department
Chemistry
Reference Range
Reference Range Not Established
Setup Schedule / Expected Turnaround Time
24/7; Report available: Daily
Specimen Collection
Special Instructions
N/A
Preferred Specimen
2 mL fresh Urine
Minimum Volume
1 mL
Instructions
Obtain specimen in urine collection cup and transfer 2 mL to a screw-top transport tube.
Patient Preparation
N/A
Storage
Screw-top plastic transport tube
Transport Temperature
Refrigerated
Specimen Stability
- Room Temperature = 2 days
- Refrigerated = 7 days
- Frozen = 1 month
Limitations
N/A
Other Acceptable Specimens
N/A
Unacceptable Specimens
Incorrect specimen type, insufficient sample volume, improper storage conditions, exceeds specimen stability guidelines, contaminated sample.
Result Information
Methodology
Spectrophotometry (SP)
Testing Laboratory
N/A
Reference Range
Reference Range Not Established
Setup Schedule / Expected Turnaround Time
24/7; Report available: Daily