Screening is required by State law:
The Idaho Legislature has instructed the Department of Health and Welfare to require that all babies born in Idaho receive two screening tests for Phenylketonuria (PKU) and other disorders that can result in mental retardation or other serious health problems. This procedure is called the “newborn screen,” or the “newborn blood spot screen.” This test should not be called “The PKU” or the “The PKU Test,” as Idaho now screens for more than 46 conditions. To learn more about the conditions tested for in Idaho, see the Idaho Practitioner's Manual.
Newborn screening is just one of many things that happen in the first few days after a baby is born. The information found at http://babysfirsttest.org/ can help prepare expecting parents for the newborn screening process and answer common questions, such as: What should I do Before Birth? What are the Screening Procedures? How should I respond to the Results? What are the Screening Outcomes? What happens to the Blood Samples?