12 results
Causes of Peripheral Weakness without Sensory Changes - Differential Diagnosis Algorithm
No Objective Weakness
 • Cardio-pulmonary disease
Causes of Peripheral ... Neuropathy • Spinal ... Syndrome • Botulism ... • Congenital Myopathy ... #Neurology #Differential
Causes of Neuromuscular Weakness
 • Spinal Cord: Demyelinating Disease (MS), Epidural abscess, Infarction, Syringomyelia, Tetanus, Transverse
Causes of Neuromuscular ... WeaknessSpinal ... , Myasthenia Gravis ... Mitochondrial myopathy ... #Causes #differential
Generalized Weakness - Differential Diagnosis Framework
"l feel weak":
 • Infectious: Influenza, EBV, PNA, Bacteremia, Sepsis
 •
Resp/Heme: CHF, valves ... I am weak": • Myopathy ... NMJ disorder (Myasthenia ... Diagnosis #causes ... #neurology
Myasthenia Gravis Overview

Myasthenia Gravis is an autoimmune disorder of the postsynaptic neuromuscular junction.  Ab to
crises”. ... life-threatening Differential ... variants of GBS ... Serologic and EMG ... diagnosis #management #neurology
Weakness - Differential Diagnosis Framework

Approach To Weakness:
 • Non-neuromuscular disorder (Cardiac, pulmonary etc)
 • CNS ->
Weakness - Differential ... Lesions of the spinal ... Postsynaptic: Myasthenia ... Myopathy: ... #Differential #
Lesions of the Spinal cord - Spinal Cord Syndromes

Spinal cord lesions can result in permanent neurologic
Syndromes Spinal ... Causes of spinal ... - Radiation myelopathy ... #lesions #differential ... #diagnosis #neurology
Cauda Equina Syndrome Overview

Cauda Equina Syndrome:
 • Prevalence: 1:33,000-100,000 ppl/yr
 • Incidence: 1.5-3.4 million ppl/yr
 •
MCC- acute ... - Emergency Causes ... lower extremity weakness ... #differential # ... #neurology
Spinal Cord Disorders - Differential Diagnosis Framework

Spinal cord neurological lesion:
Clinical findings:
 • Symptoms and signs below
- Differential ... Cord Causes: 1 ... MCTD, Sjogren syndrome ... disorders #diagnosis #neurology ... #differential
Guillain–Barré syndrome (GBS)
(aka: Landry–Guillain–Barré–Strohl syndrome:
	Most common cause of acute flaccid paralysis
	Rapidly progressive ascending paralysis & areflexia
	Autonomic
Guillain–Barré syndrome ... syndrome:  Most ... common cause of ... Differential diagnosis ... :  Myasthenia
Acid Base Disorders - Blood Gas Interpretation

Steps for Blood Gas Interpretation: 
1. Acidemia or Alkalemia? 
2.
And BMP Normal Values ... D-lactate (short bowel syndrome ... Neuromuscular weakness ... (GBS, Myasthenia ... Diagnosis #Summary #Nephrology