perform a DixHallpike manoeuvre

The DixHallpike test produces vertigo when she lies on her R side. You look carefully at her eyes.

"Please don't do that again, doctor. I hate this feeling. I might throw up on you."

There are a variety of videos on how to perform this maneuver. 

The American Academy of Neurology has one but it is rather long and shows many different maneuvers without much explanation. 

Here is a link to a video that we created illustrating key points from the DixHallpike and Epley maneuvers.