88 results
Causes of Vertigo - Differential Diagnosis Algorithm
#Diagnosis #Neurology #Dizziness #Peripheral #Central #Algorithm #BPPV #Differential #Ddxof
- Differential Diagnosis ... Algorithm #Diagnosis ... #Neurology #Dizziness ... Central #Algorithm #BPPV
Important Biostatistics and Epidemiology Equations

Sensitivity = TP / (TP + FN) = true positives / disease
FP + TN) = true negatives ... all positives Negative ... / all negatives ... #calculations #diagnosis ... #specificity #PPV
Gastrointestinal Evaluation of Iron Deficiency Anemia
In patients with anemia, diagnose iron deficiency if:
 • Ferritin <
patients with anemia, diagnose ... celiac disease with serology ... biopsy only if serology ... only if: • Negative ... Evaluation #workup #diagnosis
HINTS Exam - Distinguishing Central from Peripheral Vertigo
 • Head Impulse: Head thrust 10° with eyes
TylerLarsenMD #HINTS #physicalexam ... Peripheral #Vertigo #diagnosis ... #neurology #bppv
Differentiating Benign Paroxysmal Positional Vertigo (BPPV) From Vestibular Neuritis-Labyrinthitis
BENIGN PAROXYSMAL POSITIONAL VERTIGO
 • Age: More common
Positional Vertigo (BPPV ... impulse test: Negative ... consistent with BPPV ... Labyrinthitis #diagnosis ... #neurology #comparison
Relative Afferent Pupillary Defect

Dr. Felipe Duarte Augusto @semiologianeurologica

#RAPD #Relative #Afferent #Pupillary #Defect #Neurology #Clinical #Video #Pupils
Relative Afferent ... semiologianeurologica #RAPD #Relative ... Pupillary #Defect #Neurology ... Video #Pupils #PhysicalExam
HINTS Exam - Unidirectional Nystagmus - Left-beating

In a patient with vertigo symptoms, this finding is reassuring
Nystagmus #HINTS #PhysicalExam ... Clinical #Video #Negative ... #Neurology #Peripheral
Characteristics of Peripheral and Central Vertigo
PERIPHERAL VERTIGO
 • Onset: Sudden
 • Intensity: Severe initially, often decreasing
than a minute for BPPV ... posterior canal BPPV ... horizontal canal BPPV ... Central #Vertigo #diagnosis ... symptoms #comparison #neurology
The head impulse test (HIT) result is positive (abnormal) in nearly all patients with a peripheral
cause of AVS and negative ... #Diagnosis #PhysicalExam ... #Neurology #AVS
Diagnostic Algorithm for Dizziness and Vertigo
Peripheral Vertigo:
 • Attacks: Sudden, severe, can last anywhere from seconds
Diagnostic Algorithm ... Varies • No neurologic ... auditory findings BPPV ... #differential #diagnosis ... #neurology