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학습 자료 둘러보기 →In sensorineural hearing loss (SNHL), the primary complaint is often difficulty understanding speech, especially in noisy environments, due to damage to cochlear hair cells. This typically presents first with high-frequency loss, making consonants hard to distinguish.
In contrast, conductive hearing loss results from a physical blockage or damage to the outer/middle ear. Patients often report sounds as muffled or quiet but may hear clearly if the volume is increased sufficiently. Common causes include cerumen impaction or otitis media.
The Weber and Rinne tuning fork tests are critical bedside tools. In SNHL, sound lateralizes to the better ear (Weber) and AC>BC (Rinne). In conductive loss, sound lateralizes to the poor ear, and BC>AC. Always inspect for cerumen before testing.
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