Serum phenylalanine screening

Alternative names:

phenylalanine; phenylalanine, serum

Normal values:

A normal test results in no bacteria growth. This indicates that there was enough phenylalanine inhibitor to prevent the bacteria from using the phenylalanine and growing.

What abnormal results mean:

Bacteria growth indicates that there was not enough phenylalanine inhibitor to prevent the bacteria from using the phenylalanine and growing. PKU is a possibility and further testing will be performed.