tympanometry

Full Definition

Tympanometry is an acoustic impedance test that evaluates the condition of the middle ear and eardrum by measuring how well the tympanic membrane moves in response to pressure changes. The test produces a tympanogram showing compliance curves that indicate normal function, negative pressure, fluid presence, or perforation. This procedure is crucial for differentiating between conductive and sensorineural hearing losses in diagnostic protocols.

Usage

Usage note: The procedure is tympanometry; the resulting chart is a tympanogram.

In Context

• "Tympanometry results showed Type B curves bilaterally, suggesting middle ear effusion." — Diagnostic report
• "The clinic protocol requires tympanometry before any hearing aid fitting." — Clinical procedure