Question
My child has been crying and fussing recently, with no abnormalities found during the check-up. I would like to inquire about the normal range of phenylketonuria values.
Answer
Phenylketonuria is a genetic disorder caused by an enzyme defect in the amino acid metabolism pathway. Accurate diagnosis requires venous blood testing, and timely treatment is crucial to avoid missing the best treatment window. Normal values should be below 1.2. If this value is exceeded, further detailed examination and close collaboration with a doctor are recommended.