The intellectual disability associated with PKU is preventable with:
- removal of environmental toxins.
- blood transfusions.
- a special diet.
The Correct Answer is C.
PKU (phenylketonuria) involves an inability to metabolize the amino acid phenylalanine. Intellectual disability and other symptoms of PKU can be reduced or eliminated by a diet low in phenylalanine beginning at birth.
Answer A: PKU is a recessive gene disorder which is not related to environmental toxins.
Answer B: PKU is not addressed with blood transfusions.
Answer D: Antibiotics are not used with PKU, as it is not due to infection.