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Update on Vestibular Head Impulse Testing (vHIT)

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1.  The traditional head impulse test was reported in: 1985 1988 2013 1976

2.  Clinicians administering the traditional head impulse were only capable of observing the______________. Covert saccade Overt saccade Gain Phase

3.  What was developed that allowed for development of the video head impulse test? Fast frame rate cameras Light weight goggles that fit snuggly Small but accurate accelerometers All of the above

4.  What was the vestibulo-ocular reflex referred to by early physicians interested in using it for assessing patients in a coma? Doll's eye test Walleye test Visual Acuity test None of the above

5.  The gold standard for the assessment of high frequency head impulse prior to the video head impulse test was the ___________________. Caloric exam Rotational chair exam Scleral search coil Vibration stimulation

6.  The video head impulse test is capable of assessing the _________ canal. Horizontal Posterior Superior All of the above

7.  McCaslin reported findings in patients with unilateral peripheral vestibular impairments suggesting that the caloric weakness needed to be approximately _______ before the vHIT demonstrated abnormalities. 100% 1% 39.5% 20%

8.  One of the parameters not measured during the vHIT examination is_________. Gain Presence of covert saccades Presence of overt saccades Phase

9.  McCaslin reported that in cases of Definite Menieres disease, it is possible to observe a significant _____________________ and a normal vHIT. Caloric weakness Bilateral weakness on rotational testing Directional preponderance Headache

10.  The vHIT is capable of not only detecting peripheral vestibular impairments but also central impairments. McCaslin described an example of this in strokes located in the_______________. Medulla Posterior Fossa Cortex Frontal lobe