What is the purpose of the "Newborn Screening" test?

The purpose of the "Newborn Screening" test is primarily to identify health conditions that can affect long-term health. This screening process typically involves testing a small blood sample from the newborn to check for a range of metabolic or genetic disorders that are not apparent at birth. Early detection of these conditions allows for timely medical interventions, which can significantly improve health outcomes and developmental trajectories for affected infants. Conditions identified might include phenylketonuria (PKU), congenital hypothyroidism, and cystic fibrosis among others; all of which, if untreated, can lead to serious health complications.

While measuring physical development, evaluating reflexes, and assessing breastfeeding are important aspects of newborn care, they do not encompass the primary goal of the screening test. The focus of newborn screening is strictly on identifying unseen health issues that require early treatment to promote the infant's long-term health and well-being.