Ms. Newby just delivered her first baby yesterday. As Ms. Newby is getting ready for her discharge today, the nurse tells her that she will need to bring her baby back to the outpatient lab tomorrow for his phenylketonuria (PKU) test. Please make the appropriate responses to Ms. Newby's questions

Ms. Newby has asked you, "What is a PKU test?"


"Phenylketonuria is a condition in which infants lack the liver enzyme phenylalanine hydroxylase, which is necessary for the metabolism of an amino acid, phenylalanine. If the condition is present and is not treated, infants become hyperactive, begin seizures between 6 and 18 months, and become intellectually disabled."

Nutritional Science

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