Lifelong adherence to dietary restrictions is recommended for individuals with PKU in order to protect their:
A) lung function.
B) cognitive function.
C) muscular function.
D) kidney function.
E) cardiac function.

Question

Quizplus · Accepted Answer

Lifelong adherence to a low phenylalanine diet is necessary for individuals with PKU to protect their cognitive function. PKU is an inborn error of metabolism where the body cannot break down phenylalanine, an amino acid found in protein-containing foods. Phenylalanine can build up in the bloodstream and cross the blood-brain barrier, leading to neurotoxicity and cognitive impairment if left untreated. However, adherence to a low phenylalanine diet from birth can prevent these adverse effects and allow for normal cognitive development. Other bodily functions, such as lung, muscular, kidney, and cardiac function, are not directly impacted by PKU and are not specifically protected by adherence to the diet.

Lifelong Adherence to Dietary Restrictions Is Recommended for Individuals with PKU