True statement regarding a 3-week-old child with phenylketonuria are all, EXCEPT:

In Phenylketonuria, low phenylalanine diet is used (Because phenylalanine is not synthesized endogenously, small amounts of phenylalanine should be added to the diet to prevent phenylalanine deficiency.) Serum and urine phenylalanine and its metabolites are increased Tyrosine becomes an essential amino acid Blood for screening should be obtained after 24-48 hrs (Protein feeding) to prevent false -ve result. C/F: Microcephaly Epilepsy Musty body odour Reduced skin/hair/eye pigmentation