Recovery and Preservation of Urinary Minerals, Urea Nitrogen and Creatinine using Filter Paper Absorption Method

  • Takemori Koichi
    Department of Nursing, Faculty of Health Sciences, Aomori University of Health and Welfare
  • Yamamoto Harue
    Department of Nursing, Faculty of Health Sciences, Aomori University of Health and Welfare
  • Kadohama Harumi
    Department of Nursing, Faculty of Health Sciences, Aomori University of Health and Welfare
  • Horiguchi Yumiko
    Department of Nursing, Faculty of Health Sciences, Aomori University of Health and Welfare
  • Kudo Naomi
    Department of Nursing, Faculty of Health Sciences, Aomori University of Health and Welfare
  • Nihira Susumu
    Goshogawara Health Center
  • Mikami Seiji
    Department of Medical Informatics, Hirosaki University Hospital

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Other Title
  • 濾紙法における尿中塩類、尿素窒素及びクレアチニンの回収試験と保存試験

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Abstract

In order to clarify the usefulness of the filter paper absorption method in the measurement of urinary minerals, urea nitrogen and creatinine, recovery and preservation rates were assessed.<BR>Recovery rates of minerals and urea nitrogen were low using distilled water and 5ml HCl/l respectively and the extraction with 1 ml HCl/l proved the best method for measurements of minerals, urea nitrogen and creatinine from a single sample.<BR>Preservation assessment showed that with the filter paper absorption method minerals, urinary nitrogen and creatinine can be expected to keep itslevels without significant change of condition for sixteen weeks.

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