<prompt> True statement regarding a 3-week-old child with phenylketonuria are all, EXCEPT:Provocative protein meal tests help in the diagnosisTyrosine becomes an essential amino acid in dietSerum phenylalanine is increased and urinary phenyl pyruvate level is elevatedPhenylalanine should be completely stopped in diet  <response>: 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. CF: Microcephaly Epilepsy Musty body odour Reduced skinhaireye pigmentation 