Question
What should be the normal value for newborn phenylketonuria?
Answer
Phenylketonuria is a genetic metabolic disorder that typically does not present with obvious symptoms during the newborn period. Commonly, the phenylketonuria levels in newborns may be influenced by maternal factors or dietary factors and may be elevated. If a second test shows normal results, there is usually no major concern. If still unsure, a third retest can be done.