14 results
Causes of Peripheral Weakness without Sensory Changes - Differential Diagnosis Algorithm
No Objective Weakness
 • Cardio-pulmonary disease
Causes of Peripheral ... Sensory Changes - Differential ... Gravis • Lambert-Eaton ... • Congenital Myopathy ... #Neurology #Differential
Causes of Proximal Muscle Weakness That May Mimic Inflammatory Myopathy
 • Central or peripheral neurologic disease
Muscle Weakness ... neurologic disease • Myasthenia ... gravis • Muscular ... mimics #diagnosis #differential ... #causes #neurology
Myasthenia Gravis Overview

Myasthenia Gravis is an autoimmune disorder of the postsynaptic neuromuscular junction.  Ab to
Myasthenia Gravis ... life-threatening Differential ... Serologic and EMG ... failure - Can be ... #management #neurology
Causes of Neuromuscular Weakness
 • Spinal Cord: Demyelinating Disease (MS), Epidural abscess, Infarction, Syringomyelia, Tetanus, Transverse
Weakness • Spinal ... Eaton Syndrome, Myasthenia ... Gravis, Organophosphate ... 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
Weakness - Differential Diagnosis Framework

Approach To Weakness:
 • Non-neuromuscular disorder (Cardiac, pulmonary etc)
 • CNS ->
Weakness - Differential ... pulmonary etc) • CNS ... Postsynaptic: Myasthenia ... Gravis - Lack ... Myopathy:
Myasthenia Gravis - Summary
 • an autoimmune disease of the postsynaptic neuromuscular junction associated with antibodies
Myasthenia Gravis ... More likely to cause ... glucocorticoids - can cause ... #Gravis #diagnosis ... #management #neurology
Ptosis - Differential Diagnosis Framework

Ptosis (Greek- to fall) Drooping of the upper eyelid that usually results
Ptosis - Differential ... CN III palsy 2. ... Myasthenia gravis ... to ptosis and weakness ... #Differential #
Guillain–Barré syndrome (GBS)
(aka: Landry–Guillain–Barré–Strohl syndrome:
	Most common cause of acute flaccid paralysis
	Rapidly progressive ascending paralysis & areflexia
	Autonomic
 Most common cause ... Differential diagnosis ... :  Myasthenia ... gravis: Intermittent ... Multiple Sclerosis: CNS
Acid Base Disorders - Blood Gas Interpretation

Steps for Blood Gas Interpretation: 
1. Acidemia or Alkalemia? 
2.
And BMP Normal Values ... acidosis: - CNS ... Neuromuscular weakness ... (GBS, Myasthenia ... gravis) - Obstructive