Which manifestation is a characteristic feature of untreated phenylketonuria (PKU)?
A)Increased skin pigmentation
B)Excessive urination
C)Fragile bones
D)Small stature

Question

Quizplus · Accepted Answer

When the level of phenylalanine is not managed, brain dysfunction results in severe cognitive deficiencies and diminished motor skills. Growth retardation is present, and the skin, eyes, and hair color are lighter than those of parents or unaffected siblings, rather than increased pigmentation. The urine contains large amounts of phenylalanine, but urine volume is not increased above normal. Bone density is not affected by the disorder.

Which Manifestation Is a Characteristic Feature of Untreated Phenylketonuria (PKU)