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A kinetic assay for urea in undiluted urine specimens
1Department of Clinical Biochemistry, Addenbrookes Hospital, Cambridge, U.K.
Clinical Chemistry
|October 1, 1990
Abstract:
We describe a kinetic assay for quantifying urea in undiluted urine samples. The assay linearity extends to urea concentrations of 400 mmol/L, is free from interference from blood (10 mL/L) or bilirubin (1 mmol/L), is sufficiently precise for routine use, and correlates well with an established method for assay of diluted urine samples.