Urea, Fluid - Saskatoon
Discipline
Biochemistry
Overview
Alias
- BUN
Specimen Information
Specimen types accepted
- Peritoneal Effluent
- Miscellaneous Fluid
Specimen collection container
- Preferred Collection Container:
- Peritoneal Effluent – Red (no gel)
- Miscellaneous Fluids – Sterile Starplex or similar container
Required volume
- Optimal Volume: 4.0 mL
- Minimum Volume: 1.0 mL
(Submitting the minimum volume makes it impossible to repeat the test or perform confirmatory/reflex testing. In some situations, a minimum volume may require a second collection.)
Transport and stability
- 4 hours if cells present
- 7 days at 2 – 8 ºC
Rejection criteria
- Specimens received where the proper collection protocols were not followed
- Pathology and Laboratory Medicine Acceptance and Rejection Criteria
Performance
Methodology
- Kinetic with urease and glutamate dehydrogenase
Days/times performed
| Availability |
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| Testing Site |
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Maximum laboratory time
Results Reporting
- In hospital reported within 2 hours
- Community urgent reported within 4 hours
- Community routine reported within 24 hours
Specimen retention time
- 3 days
Last Updated: October 3, 2024