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UREA NITROGEN, BODY FLUID
Test CodeUNBF
CPT Codes
84520
Preferred Specimen
1 Green tube (Lithium Heparin)
Minimum Volume
0.5 mL
Instructions
Centrifuge and perform testing on supernatant
Specimen Stability
2-8°C up to 3 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Extreme viscosity
Methodology
Urease, UV
Setup Schedule
M, T, W, Th, F, Sa, Sun
Performed By
Alverno Laboratories
Performing Laboratory
Alverno Central Lab
NCHB1 (Chemistry, Beckman AU)
Last Updated: April 25, 2023