14 results
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 ... #HINTS #Exam #PhysicalExam ... #Peripheral #Neurology
HINTS Exam - Distinguishing Central from Peripheral Vertigo
 • Head Impulse: Head thrust 10° with eyes
from Peripheral ... examiners nose • Nystagmus ... TylerLarsenMD #HINTS #physicalexam ... #Central #Peripheral ... Vertigo #diagnosis #neurology
The head impulse test (HIT) result is positive (abnormal) in nearly all patients with a peripheral
patients with a peripheral ... patients with a central ... with an AVS with nystagmus ... #Diagnosis #PhysicalExam ... #Neurology #AVS
Peripheral and Central Causes of Vertigo
Peripheral Causes (Common):
 - Labyrinth: Benign paroxysmal positional vertigo, Méniére disease,
Peripheral and Central ... Causes of Vertigo Peripheral ... / #Vertigo #Peripheral ... #differential # ... diagnosis #neurology
Causes of Dizziness - Vertigo - Differential Diagnosis Algorithm
True Vertigo - Illusion of Rotary Movement
Peripheral Vestibular
Rotary Movement Peripheral ... unidirectonal nystagmus ... Bone Fracture Central ... Dizziness #Vertigo #Neurology ... #Differential #
Diagnostic Algorithm for Dizziness and Vertigo
Peripheral Vertigo:
 • Attacks: Sudden, severe, can last anywhere from seconds
Dizziness and Vertigo Peripheral ... minutes to days • Nystagmus ... may be present Central ... Vertigo #Algorithm #differential ... #diagnosis #neurology
Hypernatremia - Differential Diagnosis Workup Algorithm

1) Check Urine Osmolality:
 > 600 mOsm/kg - Implies extrarenal mechanism
Hypernatremia - Differential ... • Euvolemic (Low ... Diabetes insipidus (central ... , Cushing syndrome ... Workup #Algorithm #nephrology
Characteristic eye movements found in Downbeat Nystagmus

Downbeat nystagmus (downward fast phase) is the most common of
common of the central ... follows Alexander's Law ... The differential ... Ophthalmology #Neurology ... Video #Ocular #PhysicalExam
Causes of Peripheral and Central Vertigo
PERIPHERAL VERTIGO
1. Benign paroxysmal positional vertigo (BPPV) - Short-lived (typically less
(Wallenberg's syndrome ... Syndrome usually ... #Peripheral #Central ... Vertigo #Causes #differential ... #diagnosis #neurology
Adie's Pupil
What? Unknown nature & benign
 • Regular and mildly dilated pupil (4-6mm);
 • Light-near dissociaton;
unilateral; • Slow ... Holmes-Adie Syndrome ... Young females Differential ... #Adies #Pupil #PhysicalExam ... #neurology #ophthalmology