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neurology differential central peripheral clinical comparison video dix dixhallpike glomerular hallpike hints hyponatremia maneuver nephrotic sodium table workup afferent algorithm
Characteristics of Peripheral and Central Vertigo PERIPHERAL VERTIGO • Onset: Sudden • Intensity: Severe initially, often decreasing
than a minute for BPPV ... (BPPV); worsens ... with vascular causes ... #diagnosis #findings ... symptoms #comparison #neurology
Differentiating Benign Paroxysmal Positional Vertigo (BPPV) From Vestibular Neuritis-Labyrinthitis BENIGN PAROXYSMAL POSITIONAL VERTIGO • Age: More common
(BPPV) From Vestibular ... consistent with BPPV ... #BPPV #Vestibular ... Labyrinthitis #diagnosis ... #neurology #comparison
Diagnostic Algorithm for Dizziness and Vertigo Peripheral Vertigo: • Attacks: Sudden, severe, can last anywhere from seconds
Diagnostic Algorithm ... with vascular causes ... auditory findings BPPV ... positional episodes caused ... #neurology
HINTS Exam - Distinguishing Central from Peripheral Vertigo • Head Impulse: Head thrust 10° with eyes
from Peripheral Vertigo ... following a finger) • Test ... TylerLarsenMD #HINTS #physicalexam ... #diagnosis #neurology ... #bppv #comparison
The head impulse test (HIT) result is positive (abnormal) in nearly all patients with a peripheral
The head impulse test ... #Diagnosis #PhysicalExam ... #Neurology #AVS ... #HeadImpulse #Testing ... #HIT #HINTS
Causes of Peripheral and Central Vertigo PERIPHERAL VERTIGO 1. Benign paroxysmal positional vertigo (BPPV) - Short-lived (typically less
Causes of Peripheral ... (BPPV) - Short-lived ... usually lasting ... without an obvious cause ... #diagnosis #neurology
Hyponatremia - Diagnosis and Treatment Hyponatremia is usually caused by the inability to excrete water normally.
Hyponatremia - Diagnosis ... is usually caused ... up to 3x in the setting ... #Differential #Diagnosis ... Treatment #management #nephrology
Physiologic Approach to Hypotonic Hyponatremia The next time you have a case of hypotonic hyponatremia, give the
time you have a case ... It can be easier ... Cerebral Salt Wasting ... #differential #diagnosis ... table #sodium #nephrology
Relative Afferent Pupillary Defect This maneuver of intermittent light stimulus is called the alternating light test or
It is a clear sign ... very sensitive diagnostic ... regarding the cause ... Pupillary #Defect #Neurology ... Pupils #MacrusGunn #PhysicalExam
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 USMLE Epidemiology and Biostatistics Summary Meta-Analysis: pools data from several studies (greater power), limited by quality/bias of
PPV: proportion ... specificity -> higher PPV ... probability of getting ... rejecting null when it ... #calculations #diagnosis
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