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diagnosis neurology differential peripheral algorithm bppv dizziness physicalexam causes dizzy findings hints hypomagnesemia labyrinthitis magnesium management table treatment bidirectional classification
HINTS Exam - Bidirectional Nystagmus In a patient with vertigo symptoms, this finding is worrisome for
Bidirectional Nystagmus ... symptoms, this ... worrisome for a CENTRAL ... Bidirectional #Nystagmus ... Positive #Neurology #Central
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 Causes of Dizziness - Vertigo - Differential Diagnosis Algorithm True Vertigo - Illusion of Rotary Movement Peripheral Vestibular
vomiting, auditory symptoms ... unidirectonal nystagmus ... Bone Fracture Central ... /signs, bidirectional ... nystagmus - Infection
Characteristics of Peripheral and Central Vertigo PERIPHERAL VERTIGO • Onset: Sudden • Intensity: Severe initially, often decreasing
Peripheral and Central ... vestibular neuritis • Nystagmus ... circulation TIA • Nystagmus ... #findings #signs ... #symptoms #comparison
Classic Findings During Hallpike Test in Posterior Canal Benign Paroxysmal Positional Vertigo (BPPV) • Latency (delay
Latency (delay in nystagmus ... symptoms in head-hanging ... and torsional nystagmus ... and nystagmus escalates ... testing #findings #signs
HINTS Exam - Distinguishing Central from Peripheral Vertigo • Head Impulse: Head thrust 10° with eyes
Distinguishing Central ... from Peripheral Vertigo ... examiners nose • Nystagmus ... #Peripheral #Vertigo ... neurology #bppv #comparison
Diagnostic Algorithm for Dizziness and Vertigo Peripheral Vertigo: • Attacks: Sudden, severe, can last anywhere from seconds
minutes to days • Nystagmus ... may be present Central ... vascular causes • Nystagmus ... No auditory symptoms ... Long symptom-free
Causes of Peripheral and Central Vertigo PERIPHERAL VERTIGO 1. Benign paroxysmal positional vertigo (BPPV) - Short-lived (typically less
Peripheral and Central ... Long symptom-free ... CENTRAL VERTIGO ... varying neurologic signs ... #Peripheral #Central
Labyrinthitis Vestibular neuritis + unilateral hearing loss = Labyrinthitis 1) Vertigo (severe) 2) Gait instability 3)
Labyrinthitis 1) Vertigo ... vestibular CN VIII • Nystagmus ... Labyrinthitis #Diagnosis #Symptoms ... #Signs #Otolaryngology
Differentiating Benign Paroxysmal Positional Vertigo (BPPV) From Vestibular Neuritis-Labyrinthitis BENIGN PAROXYSMAL POSITIONAL VERTIGO • Age: More common
Paroxysmal Positional Vertigo ... • Frequency of symptoms ... and torsional nystagmus ... symptoms • Head ... diagnosis #neurology #comparison
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 ... Timing of the symptom
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