In an effort to catch any health issues before a baby is taken home after birth, a new screening is given in the state of Tennessee. Dr. Michael Warren with the department of health says pulse oximetry screens started in January… Not a lot is known about the cause of most birth defects, but Warren says there are a number of ways that women can cut the risk… Birth defects are the leading cause of infant deaths in the country…It’s estimated four thousand babies in Tennessee are born each year with a birth defect. (CC)