Method for quantitating creatinine discharged in urine, method for measuring urine component and apparatus therefor

摘要

A method for conveniently quantitating creatinine discharged in urine whereby the total amount of a urine discharged and urine volume in a definite period, which are usable as indicators for finding disease and health care, can be accurately determined without requiring the accumulation of urine; a method for measuring a urine component by using the creatinine level thus measured; and an apparatus for a measuring a urine component. The first aspect of the invention relates to a method for quantitating creatinine discharged in urine which comprises the step of determining a regression equation showing the correlation between body weight index and urine creatinine level, and the step of measuring the body weight index of a subject and substituting it into the above equation. The second aspect of the invention relates to a method for measuring urine components which comprises the using a value which is determined by dividing the urine creatinine level determined by the method according to the first aspect of the invention with the creatinine concentration in the urine specimen and multiplying the quotient by the concentration of the substance to be determined in the urine specimen. The third aspect of the invention relates to an apparatus for measuring urine components which comprises using the method according to the second aspect of the invention.