Phenylalanine – blood test
Definition of Serum phenylalanine screening
Serum phenylalanine screening is a blood test to look for signs of the disease (PKU). The test detects abnormally high levels of an amino acid called phenylalanine.
Neil K. Kaneshiro, MD, MHA, Clinical Assistant Professor of Pediatrics, University of Washington School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc. – 5/12/2009