![]() Air conduction measures sound transmission from the outer ear, through the middle ear, and into the inner ear, where signals are sent to the central nervous system (CNS) for auditory processing. ![]() Audiograms are most useful for objectively identifying deficits in hearing by looking at how sound travels through the auditory system via air conduction or bone conduction. Furthermore, various etiologies of hearing loss may demonstrate characteristic patterns on the audiogram, making this testing modality critical for diagnostic purposes. The audiogram quantifies and visually displays a patient's degree and type of hearing loss (sensorineural, conductive, or mixed). Audiometry is an essential means of assessing hearing thresholds in patients presenting with hearing loss.
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