10 results
The head impulse test (HIT) result is positive (abnormal) in nearly all patients with a peripheral
The head impulse test ... result is positive (abnormal ... cause of AVS and ... #Diagnosis #PhysicalExam ... #Neurology #AVS
Cauda Equina Syndrome Overview

Cauda Equina Syndrome:
 • Prevalence: 1:33,000-100,000 ppl/yr
 • Incidence: 1.5-3.4 million ppl/yr
 •
- Emergency Causes ... cord • Guillain-Barre ... • Provocative Tests ... absent anal wink test ... #causes #neurology
Guillain-Barré Syndrome (GBS)
Acute autoimmune demyelinating polyradiculoneuropathy that presents with rapidly progressive flaccid weakness
Epidemiology:
 • Incidence: 1
Incidence: 1 to 2 cases ... depressed deep tendon reflexes ... and sensitive tests ... nerve roots and cauda ... #management #neurology
Guillain-Barre Syndrome - Summary

Acute AIDP that presents with rapidly progressive flaccid weakness

Epidemiology:
 • 1-2 cases/100,000 per
Epidemiology: • 1-2 cases ... Decreased / Absent Reflexes ... Diagnosis: • ... nerve roots and cauda ... management #treatment #neurology
The Neurological Evaluation of a Comatose Patient

Definition:
 • Coma: a state of unresponsiveness; the absence of
Differential Diagnosis ... Test if patient ... Casey Albin MD @ ... #PhysicalExam #neurology ... #comatose #diagnosis
Spinal Cord Disorders - Differential Diagnosis Framework

Spinal cord neurological lesion:
Clinical findings:
 • Symptoms and signs below
Spinal Cord Disorders ... Lower roots -> Cauda ... Non-compressive Spinal Cord Causes ... reflexes: Areflexia ... #diagnosis #neurology
Hearing Loss - Differential Diagnosis Framework

Hearing Loss Types:
• Conductive
• Sensorineural
• Mixed
Presbycusis is the most common type
- Differential Diagnosis ... : • Normal: Air ... cause unknown) ... Mitochondrial disorders ... Labyrinthitis ○ Epstein-Barr
Acid Base Disorders - Blood Gas Interpretation

Steps for Blood Gas Interpretation: 
1. Acidemia or Alkalemia? 
2.
Acid Base Disorders ... (AG) = {Na - (Cl ... - Differential Diagnosis ... #AcidBase #disorders ... #Summary #Nephrology
Transverse Myelitis Overview

Focal inflammatory disorder of the spinal cord resulting in rapid onset of weakness, sensory
Spasticity - Reflexes ... bouts of HTN Diagnostic ... Sjogren's • CSF: - Abnormal ... negative, MOG-IgG test ... #management #neurology
Chagas Disease - American Trypanosomiasis - Diagnosis and Management Summary
Chagas disease (American trypanosomiasis) is an infectious
Trypanosomiasis - Diagnosis ... infectious disease caused ... Cardiomyopathy: Conduction disorders ... Confirmatory Tests ... Thin and thick peripheral