title: The CAP Urine Chemistry Survey Program for 1977.
abstract: Eleven analytes were presented in the Urine Chemistry Survey Program during the year 1977. These included amylase, calcium, phosphorus, sodium, potassium, creatinine, osmolality, 17-ketosteroids, total protein, glucose, and urea nitrogen. More than 450 laboratories participated. Deficiencies in assay performance were found for amylase, 17-ketosteroids, and total protein. Sharp shifts in precision performance were seen in urea nitrogen analysis. Severe biases are apparent in glucose analysis using neocuproine and ferricyanide methods.
mesh_terms: D015068:17-Ketosteroids / Q000652:urine; D000681:Amylases / Q000652:urine; D003404:Creatinine / Q000652:urine; D005069:Evaluation Studies as Topic; D005947:Glucose / Q000032:analysis; D006801:Humans; D013677:Medical Laboratory Science / Q000592:standards*; D009584:Nitrogen / Q000652:urine; D010336:Pathology; D010758:Phosphorus / Q000652:urine; D011188:Potassium / Q000652:urine; D011506:Proteins / Q000032:analysis; D012955:Societies, Medical; D012964:Sodium / Q000652:urine; D014481:United States; D014508:Urea / Q000652:urine; D014556:Urine / Q000032:analysis*
chemical_list: D015068:17-Ketosteroids; D011506:Proteins; D010758:Phosphorus; D014508:Urea; D012964:Sodium; D003404:Creatinine; D000681:Amylases; D005947:Glucose; D009584:Nitrogen; D011188:Potassium