So your baby is deaf: Newborn hearing screening and its ramifications

With the advent of rapidly changing medical technology, a baby born today can be quickly identified within hours with a hearing loss and referred for further follow-up and or treatment. Often, the instruments of mass detection are the Automated Brainstem Response (ABR) and Otoacoustic Emissions (OAE). In both tests, sounds are played in a newborn's ear to test how the baby responds to it. In the ABR test, the response of the auditory nerve is measured via electrodes placed on the head and in the OAE test, the hair cells present in the cochlea are analyzed using echoes. Both machines are often operated by volunteers or hospital staff that have little to no knowledge of what a hearing loss en