The identification of congenital heart defects in the newborn can be complicated. After reading the article The nurse champion model for advancing newborn screening of critical congenital heart disease Discuss the following: Identify two (2) variables needed to promote the accuracy of pulse oximetry results in the newborn. Discuss why these variables are important to address. Identify two (2) benefits and two (2) limitations to performing a pulse oximetry on all newborns.