Validation of daily urinary creatinine excretion measurement by muscle-creatinine equivalence
نویسندگان
چکیده
منابع مشابه
Urinary creatinine excretion in the newborn.
We measured the excretion rate of endogenous creatinine in 84 24-hour urine collections obtained from 60 term and preterm newborn infants between the 3rd and the 68th postnatal day, at postconceptional ages 28-42 weeks. The rate was positively correlated with weight, height, and postconceptional age but not with postnatal age; the strongest correlation was that with weight. When the rate was fa...
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We describe microplate methods for measurement of human urinary albumin (HUA) by competitive enzyme-linked immunosorbant assay (ELISA) and creatinine with a modified commercial enzymatic kit. Incorporation of substrate mixing into the competitive ELISA changes the dynamic absorbance-concentration response, greatly simplifying calculations and improving sensitivity and accuracy. Measurement of c...
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I N 190S, Shaffer’ demonstrated that the daily excretion of creatinine in adult man is remarkably constant over long periods of time, even under the most varied circumstances. Because the quantity excreted is little affected by diet, exercise or volume of urine, the daily creatinine excretion is used to determine the completeness of twenty-four hour urine collections. Since creatinine excretion...
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Plasma urea and creatinine concentrations and urea and creatinine clearances and excretion were measured in a sample of 40 infants of 25*5-33 weeks' gestation, birth weight 720-2000 g, between the ages of 0 5 and 33 days. Creatinine excretion rate was between 60 and 120 gmol/kg/day in the first five postnatal weeks (mean 90.5) and was independent of sex or growth retardation. This can be used i...
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In the classical theory of protein metabolism proposed by Folin (1) two types of protein metabolism are recognized, one a constant or endogenous metabolism, and the other a variable or exogenous metabolism. According to this theory the endogenous metabolism is represented by the excretion of creatinine at a relatively constant rate which is independent of protein intake. More recently, as point...
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ژورنال
عنوان ژورنال: Journal of Clinical Laboratory Analysis
سال: 2018
ISSN: 0887-8013
DOI: 10.1002/jcla.22407