ADDITIONAL observations have been made on the respiration of 14 sleeping newborn infants ranging in age from 8 days to 46 days, in an effort to reexamine the trend and range of normal with reference to minute volume, tidal air, rate, and pattern. The observations have been related to the weight of the infant, and in some instances to the body surface. It is hoped that a contribution toward a better understanding of the normal trend and range of the respiration of the newborn infant during sleep will be obtained from this material so that a proper interpretation may be made when a stimulating gas is administered. Certain records have been analyzed by 10-second periods within the total minute to show that the volume of air breathed is at all times an astatic or changing quantity. Although we confirmed the statement of Cross1 and Boutourline-Young2 that the average
HOWARD PJ, BAUER AR. QUANTITATIVE VARIATIONS IN THE RESPIRATION OF THE NEWBORN INFANT. AMA Am J Dis Child. 1953;86(3):284–292. doi:10.1001/archpedi.1953.02050080294004
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