What pre-test instructions must be given to the patient before VNG?
For a successful examination, it is essential to inform the patient in advance that it will be necessary:
- To dress comfortably;
- Do not use mascara or excessive make-up around the eyes;
- Continue to take medications for the heart, diabetes, hypertension, and anticonvulsants;
- Do not drink coffee, tea, cola, or any other caffeinated beverage within 24 hours of testing;
- Do not eat or smoke for 3 hours prior to testing.
Alcoholic beverages and the following drugs must not be taken for at least 48 hours before the test: antiemetics, antivertiginous, antihistamines, aspirin, barbiturates, quinine, sedatives, tranquilizers, stimulants.
During the administration of the various tests, the patient must avoid chewing, moving the muscles of the forehead and cheeks, and tilting the head in order not to cause accidental displacements of the goggles with respect to the eye.
Please watch these courses for more information, Vestibular and Balance Assessment in Children with Sensorineural Hearing Loss: An Overview and Recent Advances in the Diagnosis and Treatment of Meniere's Disease.