Neuro - vestibular Test Questions with Correct Answers Fully Solved

Neuro - vestibular Test Questions with Correct Answers Fully Solved peripheral vestibular system functions - Answersgaze stabilization postural stabilization spatial orientation dizziness - Answersvague term to describe range of sensations, such as lightheadedness, faintness, whirling, or unsteadiness vertigo - Answersillusion of movement "feels like room is spinning" may be due to BPPV, universal vestibular hypofunction, or lesion affecting vestibular nuceli lightheadedness - Answersfeeling that fainting may occur or is about to occur may be d/t hypotension, hypoglycemia, or anxiety dysequilibrium - Answerssensation of being off balance may be due to vestibular problems, cerebellar or motor pathway lesions, decreased somatosensations, or weakness in LE oscillopsia - Answerssubjective experiences of objects moving in the visual environment that are known to be stationary may occur with head movements in patients with vestibular hypofunction (poor gaze stabilization) BPPV - Answersbiomechanical disorder of inner ear in which the otoconia is displaced from the utricle into the semicircular canals most common cause of vertigo. most often idiopathic BPPV: signs and symptoms - Answersoccurs only with changes in head position -nystagmus with change -vertigo w/ change -nausea with or without vomiting -disequilibrium duration of symptoms typically less than 60 seconds BPPV special tests: Dix hallpike procedure - Answerspatient is positioned in long sitting w/ head rotated 45 degrees to one side lowered to supine with head extended 30 degrees- observe for nystagmus repeat test with head rotated to other side