Metabolic Disorders: The Blue-Red Test for Trouble


If a baby seems normal at birth but soon appears listless, fails to gain weight, and suffers from jaundice, vomiting and diarrhea, his mother can hardly be expected to know that he may lack the enzyme galactose1 -phosphate uridyl transferase. Neither can doctors, unless they send samples of the baby's blood and urine for timeconsuming, costly lab tests. Then, if the tests show an excess of galactose (milk sugar) in the blood or urine, doctors know what the trouble is and how to remedy it.

Since the baby cannot metabolize galactose to...

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