BUN Reagent Set (UV-Kinetic Method) (B550-400)
Number of Tests:
8 x 150 mL bottles
2 days at 15-30°C
21 days at 2-8°C
It is strongly suggested that each laboratory establish its own range of expected values.
The reagent should be discarded if: (1) Turbidity has occurred; (2) Moisture has
penetrated the vial and caking has occurred; (3) The reconstituted reagent has a reagent
blank absorbance less than 1.000 at 340 nm.
Limitations of Procedure:
Anticoagulants such as fluoride, citrate, and EDTA may inhibit urease and should be
avoided. Ammonium ions present in water or other substances may falsely elevate urea