I'm going for my ENG at 1pm....What is an ENG you say ?
Here is the description ( source : webmd)
Electronystagmogram for vertigo
In an electronystagmogram (ENG), wires (electrodes) attached to the face detect involuntary eye movements (nystagmus) that occur when a person has vertigo. During this test, the person is asked to track a moving object with the eyes, open and close the eyes, and change positions of the head. These motions trigger vertigo for some people.
Near the end of the test, warm or cool water or air is gently injected into each ear canal, one at a time. This is called a caloric test and may be done without using electrodes to detect the eye movements.
This test is done by a doctor in a hospital or clinic and usually lasts about an hour.
Why It Is Done
The test often can help distinguish between inner ear (peripheral) and brain (central) causes of vertigo. It usually is done only if the cause of vertigo is not evident from the person's history and physical examination.
