About NBHSW - The tests
The tests
The automated otoacoustic emissions (AOAE) is the primary test used for well babies. However, it is not always possible to get a clear response within the first 24 hours and in these cases the Service Model recommends that if the mother is expected to be discharged within 24 hours, the baby's hearing is screened again using a different method, the automated auditory brainstem response (AABR). This is to reduce the number of babies leaving hospital requiring follow up. If it is not possible to undertake AABR e.g. if baby becomes unsettled, then a further AOAE screen may be offered in the community either at home or in a local clinic.
Babies at high risk are screened using AABR as the primary test. High risk babies are babies who have spent more than 48 hours in a Special Care Baby Unit/Neonatal Intensive Care Unit.
Automated Otoacoustic Emissions (AOAE)
A small soft-tipped earpiece is put in the outer part of the baby’s ear. This makes a clicking sound and a computer shows the screener how the baby’s ears are responding to the sound.
Automated Auditory Brainstem Response (AABR)
Three small sticky pads are put on the baby’s head and neck. Small headphones are put over the baby’s ears, which will make a clicking sound. A computer shows the screener how the baby’s ears are responding to the sound.