A VNG appointment involves several separate sub-tests plus recovery time after the caloric portion, which deliberately provokes dizziness. Allow longer than the testing itself, and arrange for someone to drive you home rather than assuming you will feel able to.
A VNG appointment involves several separate sub-tests plus recovery time after the caloric portion, which deliberately provokes dizziness. Allow longer than the testing itself, and arrange for someone to drive you home rather than assuming you will feel able to.
VNG is a sequence. Goggles track your eye movements while you follow targets, while your head and body are moved into different positions, and finally during caloric testing, where warm and cool air or water is introduced into each ear canal in turn. Each ear is tested separately, which is the point: comparing the two sides is what localises the problem. That structure is why the appointment is longer than a single recording would be.
The caloric portion provokes dizziness on purpose. For many people the sensation settles within minutes of each irrigation; for others it lingers along with nausea. Sitting quietly afterwards until you feel steady is part of the visit rather than an inconvenience, and it is the main reason this study takes longer in practice than the sum of its parts.
Arrange a driver in advance, because you cannot predict which group you will fall into. Eat lightly beforehand rather than arriving very full or completely empty. You will usually be asked to stop certain medications, including sedatives, antihistamines and anti-nausea drugs, because they suppress the responses being measured; never stop a prescribed medication without checking first. Skip eye make-up, since the goggles track your eyes.
Clinical Neurology Specialists has been physician-owned since 1998, when Leo Germin, M.D., FAANEM founded it. Five board-certified neurologists and four advanced practice providers see patients at the Las Vegas and Henderson offices, each with its own AANEM-accredited electrodiagnostic laboratory.
Clinical Neurology Specialists is an adult outpatient neurology practice for patients 18 and older. The practice performs no surgery and operates no imaging suite, infusion suite or interventional pain programme, and provides no emergency or inpatient care.
Physician-reviewed. Reviewed by the physicians of Clinical Neurology Specialists — board-certified neurologists, AANEM-accredited electrodiagnostic laboratories, physician-owned since 1998. Reviewed 1 August 2026. This article is general education for adults 18 and older and is not a substitute for a consultation.
Sources and further reading: MedlinePlus, National Library of Medicine; National Institute of Neurological Disorders and Stroke; American Academy of Neurology.
Adults 18 and older, at the Las Vegas and Henderson offices. Call 702-804-1212 or request an appointment online.