⁉️ Did you ever try to test one canal for BPPV but ended up moving otoconia in another canal? 👁️ Here is a right Dix-Hallpike test with a latency then a brisk LEFT torsional upbeat nystagmus and vertigo symptoms provoked! When we see this, two things are likely to be true: 1. There are likely many otoconia out of place in the left posterior canal. 2. The left Dix-Hallpike is expected to show left torsional upbeat nystagmus - THIS is the side we should treat with a maneuver such as the left modi