Miyagawa Yuichi, Tominaga Yoshinori, Toda Noriko, Takemura Naoyuki
Laboratory of Veterinary Integrative Medicine, School of Veterinary Medicine, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, Musashino City, Tokyo, Japan.
J Vet Med Sci. 2011 May;73(5):679-81. doi: 10.1292/jvms.10-0331. Epub 2010 Dec 22.
One of the most important functions of the kidney is to concentrate urine through the reabsorption of water. Urine specific gravity (USG) is used in routine tests of urine concentration and can be estimated using a refractometer. However, as the scale of Japanese refractometer is based on experimental data from healthy Japanese people, and human USG obtained by Japanese refractometers show higher values than that by refractometer produced in Europe or the U.S.A. The purpose of this study was to establish correction formulas for the USG of dogs and cats measured using Japanese refractometers. In this study, we found that Japanese refractometers overestimated USG in both dogs and cats. This study shows that the correlation formulas described in this study are useful for the accurate evaluation of USG.
肾脏最重要的功能之一是通过重吸收水分来浓缩尿液。尿比重（USG）用于尿液浓缩的常规检测，可使用折射仪进行估算。然而，由于日本折射仪的刻度是基于健康日本人的实验数据，用日本折射仪测得的人类尿比重值高于欧美生产的折射仪所测值。本研究的目的是建立用日本折射仪测量犬猫尿比重的校正公式。在本研究中，我们发现日本折射仪高估了犬猫的尿比重。本研究表明，本研究中描述的相关公式有助于准确评估尿比重。
