The goal of treatment of the infant with phenylketonuria (PKU) is to
a. Cure mental retardation.
b. Prevent central nervous system (CNS) damage, which leads to mental retardation.
c. Prevent gastrointestinal symptoms.
d. Cure the urinary tract infection.
B
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A No known cure exists for mental retardation.
B CNS damage can occur as a result of toxic levels of phenylalanine.
C Digestive problems are a clinical manifestation of PKU.
D PKU does not involve any urinary problems.
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