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CNVIII vestibulocochlear nerve

Terms in this set (6)

Weber test
(-)= normal sound is equal n both ears
(+)= conductive deafness-sound lateralizes to the bad ear
(+)= sensorineural deafness-sound lateralizes to the good ear
Rinne Test
Normal: air conduction persists twice as long as bone conduction
Abnormal: conduction deafness- air conduction is absent equal to, or less than bone conduction
Abnormal: sensorineural deafness- air conduction and bone conduction are both radically decreased or absent
Fukuda step test
1. Turning to one side
2. vestibular lesion on the side of rotation
Hallpike Dix Maneuver
1. Nystagmus starting 2-5 seconds after movement and stopping within 30 seconds
2. benign positional vertigo
Barany whirling chair test
normal: fast component of nystagmus will be in the direction of the spin.
Vestibulo-ocular reflex
normal: patient should maintain eye contact with eyes moving at the same speed in opposite direction of head movement.
Inability to maintain fixation or spontaneous nystagmus indicates vestibular lesion
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