ATI Nursing Proctored Pediatric Test Banks Related

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Phenylketonuria (PKU) is a genetic disease that results in the body's inability to correctly metabolize:

  • A. glucose.
  • B. phenylalanine.
  • C. phenylketones.
  • D. thyroxine.
Correct Answer: B

Rationale: Phenylketonuria (PKU) is a genetic disorder that affects the body's ability to metabolize the amino acid phenylalanine. Individuals with PKU lack an enzyme called phenylalanine hydroxylase, which results in the buildup of phenylalanine in the body. If untreated, high levels of phenylalanine can lead to intellectual disabilities, seizures, and other serious health problems. Therefore, individuals with PKU need to follow a special diet low in phenylalanine to prevent these complications.