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Dizziness - Central and Peripheral Causes - Differential Diagnosis
Central Causes:
 • Cerebrovascular:  vertebrobasilar, TIA, Wallenburg,
- Central and Peripheral ... Malformation Peripheral ... Meniere’s • Labyrinthitis ... Dizziness #Central #Peripheral
Peripheral and Central Causes of Vertigo
Peripheral Causes (Common):
 - Labyrinth: Benign paroxysmal positional vertigo, Méniére disease,
Peripheral and Central ... Causes of Vertigo Peripheral ... neuritis (a.k.a. labyrinthitis ... / #Vertigo #Peripheral
Labyrinthitis 
Vestibular neuritis + unilateral hearing loss = Labyrinthitis 
1) Vertigo (severe) 
2) Gait instability 
3)
Labyrinthitis ... hearing loss = Labyrinthitis ... head thrust #Labyrinthitis
Characteristics of Peripheral and Central Vertigo
PERIPHERAL VERTIGO
 • Onset: Sudden
 • Intensity: Severe initially, often decreasing
Characteristics of Peripheral ... Central Vertigo PERIPHERAL ... vestibular neuritis/labyrinthitis ... hearing loss (labyrinthitis ... Findings: Rarely #Peripheral
Causes of Nausea and Vomiting - Differential Diagnosis Framework

Chemoreceptor Trigger Zone/Area Postrema:
 • Drugs:
	- Chemo agents
	-
• Tumors • Labyrinthitis ... nausea #vomiting #emesis
Differentiating Benign Paroxysmal Positional Vertigo (BPPV) From Vestibular Neuritis-Labyrinthitis
BENIGN PAROXYSMAL POSITIONAL VERTIGO
 • Age: More common
Vestibular Neuritis-Labyrinthitis ... VESTIBULAR NEURITIS/LABYRINTHITIS ... hearing loss in labyrinthitis ... vestibular neuritis or labyrinthitis ... Vestibular #Neuritis #Labyrinthitis
Diagnostic Algorithm for Dizziness and Vertigo
Peripheral Vertigo:
 • Attacks: Sudden, severe, can last anywhere from seconds
Dizziness and Vertigo Peripheral ... Vestibular neuritis/labyrinthitis ... hearing loss (labyrinthitis
Causes of regurgitation/vomiting in children

#Vomiting #Emesis #Differential #Peds #Pediatrics #Diagnosis #Causes
#Vomiting #Emesis
Dizziness - Differential Diagnosis Framework
Vertigo:
 • Peripheral: Labyrinthitis, BPPV, Meniere's disease, Alternobaric
 • Central: CVA/TIA -
Framework Vertigo: • Peripheral ... : Labyrinthitis,
SIGNS OF CHOLINERGIC CRISIS: DUMBELLS
-Diarrhea
-Urination
-Miosis
-Bradycardia
-Bronchospasm
-Emesis
-Lacrimation
-Lethargy
-Salivation

#Diagnosis #Toxicology #Muscarinic #Cholinergic #Toxidrome #Poisoning #DUMBELLS #DUMBBELLS #Mnemonic
-Bronchospasm -Emesis