10 results
Lower Extremity Dermatomes and Myotomes
Reflexes: 
 • Knee - L2, L3, L4
 • Ankle - S1
Lower Extremity ... Dermatomes and Myotomes ... claudication and weakness ... #diagnosis #neurology ... #sensory #motor
Causes of Peripheral Weakness with Sensory Changes - Differential Diagnosis Algorithm
Radiculopathy:
 • Disc
 • Spondylosis
 •
of Peripheral Weakness ... with Sensory Changes ... Differential Diagnosis Algorithm ... Compression: • Carpal ... #Sensory #Neurology
Causes of Hemiplegia - Differential Diagnosis Algorithm
Cerebral Hemisphere (Contralateral motor cortex)
 • Aphasia
 • Apraxia
 •
Differential Diagnosis Algorithm ... contralateral extremity ... contralateral to weakness ... ipsilateral to weakness ... #Hemiplegia #Neurology
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Upper Extremity ... Carpal Tunnel Syndrome ... anesthesia and deltoid weakness ... #diagnosis #neurology ... #sensory #motor
Causes of Peripheral Weakness without Sensory Changes - Differential Diagnosis Algorithm
No Objective Weakness
 • Cardio-pulmonary disease
without Sensory ... Differential Diagnosis Algorithm ... • Cardio-pulmonary ... #Neurology #Differential ... #Diagnosis #Algorithm
Acute Spinal Cord Injuries: Pathogenesis and clinical findings
 • Anterior Cord Syndrome -> Anterior spinal artery
Acute Spinal Cord ... weakness and hyperpathia ... Sensory loss below ... and #Acute # ... #orthopedics #neurology
Spinal Cord Disorders - Differential Diagnosis Framework

Spinal cord neurological lesion:
Clinical findings:
 • Symptoms and signs below
: Sensory level ... Symptoms: • Upper extremity ... , lower extremity ... disorders #diagnosis #neurology ... differential #algorithm
Cauda Equina Syndrome Overview

Cauda Equina Syndrome:
 • Prevalence: 1:33,000-100,000 ppl/yr
 • Incidence: 1.5-3.4 million ppl/yr
 •
spine • MCC- acute ... and/or genital sensory ... weakness and sensory ... region (S2-S4 dermatomes ... diagnosis #causes #neurology
Weakness - Differential Diagnosis Framework

Approach To Weakness:
 • Non-neuromuscular disorder (Cardiac, pulmonary etc)
 • CNS ->
disorder (Cardiac, pulmonary ... Impairment: • Acute ... signs - Lack of sensory ... aminotransferases • Serology ... Differential #Diagnosis #neurology
Acid Base Disorders - Blood Gas Interpretation

Steps for Blood Gas Interpretation: 
1. Acidemia or Alkalemia? 
2.
Acid Base Disorders ... Acute or chronic ... Classically” noted with pulmonary ... Neuromuscular weakness ... Diagnosis #Summary #Nephrology