Eardrum and middle ear status can be measured objectively via acoustic impedance

Evidence

Tympanometry (Campbell and Mullin, 2012; Martin and Clark, 2006) is an objective way to measure the status of the eardrum and the middle ear. It measures the acoustic impedance of the eardrum – the tympanic membrane – to assess the mobility and the pressure difference across the eardrum. — Ville Pulkki, Matti Karjalainen, Communication Acoustics- An…, 2719

Categorization

• DEFINE: Defines tympanometry as an impedance-based diagnostic technique.