Linner test

The Liner test compares ipsilateral air conduction and bone conduction. Take the C256 tuning fork and place it on the mastoid tympanic sinus area to measure its bone conduction hearing after vibration. Record the time when no sound can be heard. Immediately move the tuning fork 1cm outside the mouth of the external ear canal and measure its air conduction hearing. If you can still hear the sound, it means that the air conduction is longer than the bone conduction (AC> BC), and the Linner test is positive (RT "+"). Conversely, bone conduction is longer than air conduction (BC> AC), which means the Liner test is negative (RT "-").

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