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HINTS Exam - Bidirectional Nystagmus 

In a patient with vertigo symptoms, this finding is worrisome for
Bidirectional Nystagmus ... worrisome for a CENTRAL ... Bidirectional #Nystagmus ... Positive #Neurology #Central ... #Vertigo
The HINTS Exam - Differentiating Central vs Peripheral Vertigo

Head Impulse Test
Nystagmus
Test of Skew

Animation by Dr. Y.
Differentiating Central ... vs Peripheral Vertigo ... Impulse Test Nystagmus ... PhysicalExam #Testing #Vertigo ... #Central #Peripheral
Causes of Dizziness - Vertigo - Differential Diagnosis Algorithm
True Vertigo - Illusion of Rotary Movement
Peripheral Vestibular
of Dizziness - Vertigo ... Algorithm True Vertigo ... unidirectonal nystagmus ... Bone Fracture Central ... bidirectional nystagmus
HINTS Exam - Distinguishing Central from Peripheral Vertigo
 • Head Impulse: Head thrust 10° with eyes
Distinguishing Central ... from Peripheral Vertigo ... examiners nose • Nystagmus ... #physicalexam #Central ... #Peripheral #Vertigo
Characteristics of Peripheral and Central Vertigo
PERIPHERAL VERTIGO
 • Onset: Sudden
 • Intensity: Severe initially, often decreasing
Peripheral and Central ... vestibular neuritis • Nystagmus ... labyrinthitis) CENTRAL ... circulation TIA • Nystagmus ... #Peripheral #Central
Diagnostic Algorithm for Dizziness and Vertigo
Peripheral Vertigo:
 • Attacks: Sudden, severe, can last anywhere from seconds
Dizziness and Vertigo ... Peripheral Vertigo ... minutes to days • Nystagmus ... may be present Central ... vascular causes • Nystagmus
Lateral Medullary Syndrome - Wallenberg's Syndrome
Acute continuous vertigo due to Posterior Circulation Stroke (usually Posterior Inferior
Acute continuous vertigo ... Nausea/vomiting/vertigo ... /nystagmus - Vestibular ... Palatal myoclonus - Central
Algorithm for the diagnostic evaluation of dizziness. (HINTS = head-impulse, nystagmus, test of skew.)
Questions regarding the
head-impulse, nystagmus ... peripheral or central ... peripheral or central ... of dizziness or vertigo
Clinical Feature of Hypomagnesemia and Magnesium Deficiency
 • Electrolyte Disturbance: Hypokalemia, Hypocalcemia
 • Neuromuscular and central
Neuromuscular and central ... fasciculations, tremors, Vertigo ... , Nystagmus, •
Classic Findings During Hallpike Test in Posterior Canal Benign Paroxysmal Positional Vertigo (BPPV)
 • Latency (delay
Latency (delay in nystagmus ... and torsional nystagmus ... and nystagmus escalates ... 30 seconds • Nystagmus ... sitting position • Nystagmus