Head Impulse, Nystagmus, Test of Skew Testing
Exam* | Peripheral Vertigo | Central Vertigo |
|---|---|---|
Head impulse testing | Abnormal (corrective saccade with head toward affected side) | Normal |
Nystagmus | Unidirectional, horizontal | Horizontal and direction changing, vertical, torsional |
Vertical test of skew | No skew deviation | Skew deviation present |
*If any 1 of these 3 tests are concerning for a central cause or if there are any associated neurological symptoms, further emergent workup is needed. | ||
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