title: A single-reagent manual method for directly determining urea nitrogen in serum.
mesh_terms: D000818:Animals; D000983:Antipyrine; D001151:Arsenic; D001322:Autoanalysis; D001663:Bilirubin; D001806:Blood Urea Nitrogen; D002074:Butanones; D002417:Cattle; D003124:Colorimetry; D006454:Hemoglobins; D006801:Humans; D007202:Indicators and Reagents; D007700:Kinetics; D008055:Lipids; D008722:Methods; D010087:Oxides; D010091:Oximes; D012710:Serum Albumin, Bovine; D014510:Urease
chemical_list: D002074:Butanones; D006454:Hemoglobins; D007202:Indicators and Reagents; D008055:Lipids; D010087:Oxides; D010091:Oximes; D012710:Serum Albumin, Bovine; D014510:Urease; D001151:Arsenic; D001663:Bilirubin; D000983:Antipyrine