Phenylalanine testing for newborns generally has a small error of between 1.2 and 3.4 mg/dl, and if it is higher than the standard value, phenylketonuria is possible.
Phenylketonuria testing is usually done through the newborn’s plantar blood screening test, the normal value of phenylalanine in newborns is between 1.2~3.4mg/dl, and the test is usually not much error, the results are accurate. Phenylketonuria is due to the lack of enzymes in the newborn’s body, the metabolism of phenylalanine produces problems, phenylketonuria will affect the newborn’s intelligence and other development.
If it is too far out of the standard range, it should be reviewed and prompt medical attention should be sought. If you have phenylketonuria, the sooner you treat it, the better, and the treatment is more effective the younger you are. The treatment is usually dietary, and the newborn can be given a formula that is tailored to the treatment, for example.