Salivary urea nitrogen as an index to renal function: a test-strip method
Akai, T.; Naka, K.; Yoshikawa, C.; Okuda, K.; Okamoto, T.; Yamagami, S.; Inoue, T.; Yamao, Y.; Yamada, S.
Clinical Chemistry 29(10): 1825-1827
1983
ISSN/ISBN: 0009-9147 PMID: 6616832 Document Number: 214518
To investigate the feasibility of using salivary urea nitrogen as an index of renal glomerular filtration rate, we developed and applied a new analytical system consisting of a urease-containing test strip and an automatic reflectance spectrometer. The concentrations of urea nitrogen so determined correlate well (r = 0.93) with concentrations in serum. These preliminary data suggest that our method can be used routinely as a simple and reliable means of detecting abnormalities of renal function.