There are several methods used for neonatal screenings: - Blood tests: A small blood sample is taken from the baby's heel, typically within the first 24-48 hours after birth. This sample is used to test for various metabolic and genetic disorders. - Hearing tests: These are non-invasive tests, such as the otoacoustic emissions (OAE) test or the auditory brainstem response (ABR) test, to check for hearing loss. - Pulse oximetry: This test measures the oxygen levels in the baby's blood and can help detect critical congenital heart disease.
