Tests For Hearing
Threshold for bone conduction is normal and that for air conduction is increased in disease of: [LQ]
Threshold for air conduction is increased (. low frequency sounds are not heard well) whereas that of bone conduction in normal.
Bone conduction> air conduction which is seen in conductive deafness. Conductive deafness occurs in lesions of either external ear, tympanic membrane, middle ear or ossicles up to stapedio-vestibular joint.