Those infants who failed the audiometry had to receive comprehensive examinations such as acoustic impedance audiometry(AIA), otoacoustic emission(OAE), auditory brainstem response(ABR) and auditory steady-state response(ASSR).

• 对未通过者进行声阻抗、耳声发射、听性脑干反应、听觉稳态诱发反应的全面综合检查以确定听力损失的性质和程度。