384 results
Causes of Dizziness - Vertigo - Differential Diagnosis Algorithm
True Vertigo - Illusion of Rotary Movement
Peripheral Vestibular
- Differential Diagnosis ... vomiting, auditory symptoms ... unidirectonal nystagmus ... /signs, bidirectional ... nystagmus - Infection
Symptoms and Signs of Hypomagnesemia
Neuromuscular:
 - Tetany, Muscle weakness, Chvostek and Trousseau signs, Cerebellar (ataxia, nystagmus,
Symptoms and Signs ... Cerebellar (ataxia, nystagmus ... , vertigo), Confusion ... Hypomagnesemia #magnesium #Symptoms ... #Signs #diagnosis
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
Characteristics of Peripheral and Central Vertigo
PERIPHERAL VERTIGO
 • Onset: Sudden
 • Intensity: Severe initially, often decreasing
PERIPHERAL VERTIGO ... vestibular neuritis • Nystagmus ... circulation TIA • Nystagmus ... #diagnosis #findings ... #signs #symptoms
Clinical Feature of Hypomagnesemia and Magnesium Deficiency
 • Electrolyte Disturbance: Hypokalemia, Hypocalcemia
 • Neuromuscular and central
fasciculations, tremors, Vertigo ... , Nystagmus, • ... Hypomagnesemia #diagnosis ... #signs #symptoms
Mastoiditis: Pathogenesis and clinical findings

Acute or Chronic Otitis Media -> 
Stage 1: Hyperemeia of the mastoid
vomiting, dizziness, vertigo ... , nystagmus • ... pathophysiology #signs ... #symptoms #diagnosis
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 - Bidirectional Nystagmus 

In a patient with vertigo symptoms, this finding is worrisome for
Bidirectional Nystagmus ... a patient with vertigo ... symptoms, this ... CENTRAL cause of vertigo ... Bidirectional #Nystagmus
HINTS Exam - Unidirectional Nystagmus - Left-beating

In a patient with vertigo symptoms, this finding is reassuring
Unidirectional Nystagmus ... a patient with vertigo ... symptoms, this ... PERIPHERAL cause of vertigo ... Unidirectional #Nystagmus
Diagnostic Algorithm for Dizziness and Vertigo
Peripheral Vertigo:
 • Attacks: Sudden, severe, can last anywhere from seconds
Diagnostic Algorithm ... minutes to days • Nystagmus ... No auditory symptoms ... Long symptom-free ... #differential #diagnosis