![]() There may not be much nystagmus in position C. If one can observe the eyes, as shown in a recording in the figure above, there should be a burst of upbeating/torsional nystagmus for at least positions B (the conventional Dix-Hallpike position), and D (the 180 degree from DH position). Usually one allows 30 seconds between positions. Note that this maneuver is done faster in the animation than in the clinic. ![]()
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