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Fluid Urea Nitrogen
MessageFor Specimen Integrity during Extreme Weather see the “Lockbox Usage in Extreme Weather” document at the top of this page.
The type/site of fluid submitted must be noted on the specimen and order. Fluid should be free of mucous, particulate matter, and be non-viscous. All of those factors can affect analysis and may render the fluid non-viable for testing.
The type/site of fluid submitted must be noted on the specimen and order. Fluid should be free of mucous, particulate matter, and be non-viscous. All of those factors can affect analysis and may render the fluid non-viable for testing.
Test Code
FLBUN
CPT Codes
84520
Preferred Specimen
20 mL Aliquot of miscellaneous body fluid, type identified, free from hemolysis, particulate matter and mucous.
Minimum Volume
1 ml
Instructions
List specific body site/type of fluid being submitted. Refrigerate. 20 mL specimen preferred, however, less is acceptable.
Transport Container
Screw-cap container/tube
Transport Temperature
Refrigerated
Specimen Stability
Room Temperature = 2 days
Refrigerated = 7 days
Frozen = NA
Refrigerated = 7 days
Frozen = NA
Methodology
Spectrophotometric
Setup Schedule
24/7
Report Available
Daily
Performing Laboratory
CompuNet Clinical Laboratories, LLC
2308 Sandridge Drive
Moraine, Ohio 45439
Last Updated: January 23, 2024
