General Information Material studied Blood. Reliability of test results Good. Patient time for test 5-10 minutes. Before the test Purpose of test Screens newborns for phenylketonuria.
Test is mandatory in most states.
Commercial laboratory, hospital, doctor's office. Lab technician, nurse, doctor. Risks and precautions Be sure your infant's name, birthdate and date of the first milk or formula feeding are marked on the laboratory slip. No changes necessary. No changes necessary.