Validation of the deuterium dilution technique for the measurement of fluid intake in infants.
The validity of the deuterium dilution technique as a method of measuring fluid intake was investigated by comparing values obtained with this technique and direct measurements of milk intake in 10 exclusively bottle-fed infants recovering from protein-energy malnutrition. Values for total body water were derived from body weight and length using Friis-Hansen's formula. During a 15-d period, average daily milk intake, measured with the deuterium technique, ranged between 519 and 963 ml and was similar to values obtained by direct measurement (range 531-1002 ml). Correlation between both sets of values was highly significant (r = 0.97; P less than 0.001). The data indicate that the deuterium dilution method provides good estimates of daily fluid intake in young infants.
D000818:Animals; D003903:Deuterium; D004326:Drinking; D005260:Female; D006801:Humans; D007201:Indicator Dilution Techniques; D007223:Infant; D008297:Male; D008892:Milk
D003903:Deuterium