perform a Dix-Hallpike manoeuvre

The Dix-Hallpike 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 New England Journal of Medicine has one but it is rather long and shows many different maneuvers.  

Original video is at https://www.youtube.com/watch?v=KLt2LtISPmQ

Here is the first section illustrating the Dix-Hallpike maneuver

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

What else would you examine?