Serum phenylalanine screening

Table of Contents

Alternative Names

Phenylalanine - blood test


Normal Values

A normal test results means that phenylalanine levels are normal and the child is not affected by PKU.


What abnormal results mean

PKU is a possibility and further testing will be performed if the phenylalanine levels in the infant's blood are too high.



Review Date: 05/12/2009
Reviewed By: 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.

A.D.A.M., Inc. is accredited by URAC, also known as the American Accreditation HealthCare Commission (www.urac.org)