Since this is a topic right now. Pulse oximetry. I wanted to use this to share the fight for every baby's heart. Seeing it being used as a call bell is disgusting. Specially in a NICU. What is newborn screening for critical congenital heart disease? Newborn screening for critical congenital heart disease uses pulse oximetry to check the level of oxygen in the blood of newborns. This test is painless and non-invasive. As of 2018, policies for screening newborns have been implemented in all states

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