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  • Title: The CAP Urine Chemistry Survey Program for 1977.
    Author: Glenn GC.
    Journal: Am J Clin Pathol; 1978 Sep; 70(3 Suppl):513-5. PubMed ID: 707417.
    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.
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