The Michigan Newborn Screening Program added screening for critical congenital heart defects using pulse oximetry for all newborns to the panel on April 1, 2014.
Link to resource:
http://www.michigan.gov/mdhhs/0,1607,7-132-2947-278046--,00.html
http://www.michigan.gov/mdhhs/0,1607,7-132-2947-278046--,00.html