CSAD 736: VNG

Positional tests are _______ and positioning tests are ________

Calorics only utilize a _______ frequency stimulus

Which of the following is NOT a sign of central vestibular problem within the brainstem or cerebellum?

Inability to significantly alter fixation index strongly implies _______ involvement

Fixation index is comparing which 2 conditions?

Upbeat or downbeat nystagmus is typically caused by a vestibular pathology

Unilateral weakness evaluates the difference between what 2 conditions?

This eye movement stabilizes the image of a still object

If oculomotor tests are abnormal, you must repeat them to confirm results

During Electric Oculography, placing electrodes above and below the eyes is conducting a ________ recording

This oculomotor test measures gain, symmetry, and velocity

Which of the following is NOT an advantage of VNG over other vestibular tests?

Which of the following tests should be performed first?

New, state-of-the-art VNG equipment is always the best

For calorics, peak nystagmus should occur around ______ seconds after irrigation stops

VNGs provide information on central compensation and functional balance

Which test is used to definitively test for diagnosis of BPPV?

Which method of caloric irrigation allows you to visualize TM while irrigating?

Directional preponderance looks at the difference between what 2 conditions?

Which test does a better job at eliminating artifact from recordings?

Only the posterior canal is stimulated in caloric testing

Which of the following is NOT a disadvantage of using air irrigation for calorics?

There should not be any delay between the target movement and the eye movement when completing saccade testing

Which oculomotor test: pt is told to watch the WVU checkerboard on the screen & allow their eyes to drift

Which component of the VNG tests one labyrinth at a time which helps to localize the side of the lesion?

When calibrating a patient’s eyes for a VNG, they should be seated _____ feet from a light bar/screen

“Recording of eye movement”

When doing optokinetic testing on a normal pt, when the checkerboard is moving from right to left, their eyes are ______

Which oculomotor test looks at undershoots and overshoots?

What type of BPPV causes torsional and down beating nystagmus?

Abnormalities in saccadic morphology typically indicate a __________

VNGs examine cerebellar function through voluntary eye movements

Which of the following is NOT a component of a VNG?

Which test produces eye movements that mimic nystagmus?

Which oculomotor test would you tell the patient “don’t anticipate the target’s movements?”

If a patient can suppress their nystagmus when focusing on a target, there is likely a _______ origin

For caloric testing, the chair should be placed at a _____ degree angle

If saccades are consistently over 15-20% of the target amplitude, the pt has _______

When irrigating a patient’s right ear with cool water, we expect their nystagmus to beat towards the _____

When we do Electro-Oculography, we are measuring the electrical potential in the _________

A patient’s saccade velocity should be between _____ and _____ degrees per second

What is the purpose of Oculomotor testing?

What is the most appropriate order of irrigations for calorics?

This oculomotor test measures accuracy, velocity, and latency

A normal VNG can NOT indicate completely normal vestibular function

For the standard ENG protocol, the eyes should be conjugate

This image is showing what type of gaze-evoked nystagmus?

For calorics, warm air/water is ______ and cold air/water is _______

Which of the following is NOT a method that can be used to examine a patient’s eye movements?

Smooth pursuit looks at differences between the movement of the right eye and left eye

Repeated calibration is needed for accurate recording of the ENG

During a spontaneous nystagmus test, if gaze elicits nystagmus only in gaze direction towards fast phase, it is _ degree

Which oculomotor test: pt is asked to follow a target that jumps quickly

When conducting calorics, the temperature change creates a change in the density of the _______

Which type of caloric irrigation causes a more robust response?

Eyes are reactive to infrared light which is why we can record eye motions in complete darkness

Positional nystagmus is always abnormal

This oculomotor test measures gain, symmetry, and morphology

_______ says that nystagmus increases or speeds up when looking in the direction of the nystagmus, or “healthy ear”