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The relationship between the refractive index and specific gravity of urine was studied with specimens from 165 Sprague-Dawley rats, by graphic analysis of the plot of the refractometrically determined index against the specific gravity which was measured with a pycnometer. 1. A linear regression was demonstrated between the refractive index and specific gravity. 2. The nomogram fitted the data of even those samples with high refractive index and specific gravity, irrespective of changes in food or water intake and protein or glucose contents in the urine. 3. The nomogram was in good agreement, in respect of linearity, with the regression line derived from the conversion table of TS meter by the American Optical Corporation and also with the nomogram of the Japanese Society of Clinical Pathology. It approximated more closely to the former than to the latter.
Y F Kitagawa, and
T Takahashi, and
H Hayashi
January 1978,
The Journal of the Singapore Paediatric Society,
Y F Kitagawa, and
T Takahashi, and
H Hayashi
January 2002,
The American journal of the medical sciences,
Y F Kitagawa, and
T Takahashi, and
H Hayashi
May 1967,
The British journal of clinical practice,
Y F Kitagawa, and
T Takahashi, and
H Hayashi
January 2021,
Translational andrology and urology,
Y F Kitagawa, and
T Takahashi, and
H Hayashi
July 1999,
Psychiatry research,
Y F Kitagawa, and
T Takahashi, and
H Hayashi
July 1975,
Michigan medicine,
Y F Kitagawa, and
T Takahashi, and
H Hayashi
August 1999,
Nihon rinsho. Japanese journal of clinical medicine,
Y F Kitagawa, and
T Takahashi, and
H Hayashi
July 1993,
Tijdschrift voor diergeneeskunde,
Y F Kitagawa, and
T Takahashi, and
H Hayashi
January 1977,
Arquivos do Centro de Estudos da Faculdade de Odontologia da U. F. M. G,
