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AAFP Alzheimer's Disease, 2017

AAFP Dizziness, 2017 AAFP Acute Stroke, 2015

HINTS Test Video, David Newman-Toker, M.D., Ph.D., Associate Professor Departments of Neurology, Ophthalmology, and Otolaryngology, The Johns Hopkins University School of Medicine
Spontaneous Nystagmus
Head Impulse Test Positive = Catch up saccade in peripheral lesion, Negative = eyes stay fixed in central lesion (aka concerning for acute stroke)
Nystagmus (Horizontol) - breakdown of smooth pursuit, (hold at far lateral at end of test too for sustained gaze evoked nystagmus)
Skew Deviation with Cover-uncover with patient looking and fixing on examiners nose (vertical misalignment
Any positive is suggestive of Stroke with acute vestibular sx (vertigo, nausea, vomiting, intolerance of head motion)
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