Exam Preview for 40886: Fundamentals of Video Head Impulse Test: Le

Fundamentals of Video Head Impulse Test: Lesson 2 – Clinical Applications and Interpretation

Please note: exam questions are subject to change.

1. Which vHIT finding is typically associated with a peripheral vestibular deficit such as unilateral vestibulopathy? Normal gain with covert saccades Reduced gain with overt or covert saccades Reduced gain on both sides with no saccades High gain with irregular latency saccades
2. What type of saccade is most likely to go unnoticed during bedside head impulse testing, yet is visible on vHIT recordings? Overt saccades with long latency Covert saccades occurring during head movement Voluntary saccades initiated by the patient Corrective saccades following gaze stabilization
3. Which of the following is a common artifact that may lead to misinterpretation of vHIT results? Low VOR gain with bilateral overt saccades Slippage or misalignment of the goggles during testing Bilateral reduction in gain with normal saccadic pattern Increased gain on the affected side
4. What is the recommended action if a clinician suspects the artifacts are affecting the vHIT data? Ignore results and rely only on caloric testing Recalibrate and repeat the test with improved goggle fit Discard the test entirely and move to MRI Use the same data but average the results
5. How can vHIT results support clinical decision-making in cases of suspected bilateral vestibulopathy? By showing increased gain on both sides By confirming central origin through spontaneous nystagmus By identifying reduced VOR gain bilaterally with minimal saccades By ruling out vestibular involvement entirely