An important aid in the study of fat digestive disorders of infants and young children is a quantitative estimation of the fat of the stools. Also it is frequently desirable to be able to follow the fat output from day to day as a guide to rational feeding. McClanahan and Moore1 say:
We occasionally find cases which seem unable to digest the smallest quantities of fat. They may however have their fat tolerance gradually increased by carefully increasing the fat content of their food as they seem able to digest it. In these cases an increase in the total fat in the stools, especially if persistent and rising, is an indication for the lowering of the fat percentage of the food.
A prime necessity in the study and treatment of such cases is a rapid and easy method for the determination of the feces fat so that necessary changes
LAWS CH, BLOOR WR. A RAPID METHOD FOR THE DETERMINATION OF FAT IN FECES. Am J Dis Child. 1916;XI(3):229–231. doi:10.1001/archpedi.1916.04110090054007
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