The screening process typically involves three primary steps:
1. Blood Test: A few drops of blood are taken from the newborn's heel (heel prick) and are placed on a special filter paper. The sample is then sent to a laboratory for analysis. 2. Hearing Test: Usually done using a small earpiece or earphone to check the baby's response to sound. 3. Pulse Oximetry: This test measures the oxygen levels in the baby’s blood to detect critical congenital heart defects.
