12 results
Myasthenia Gravis Overview

Myasthenia Gravis is an autoimmune disorder of the postsynaptic neuromuscular junction.  Ab to
life-threatening Differential ... Myotonic dystrophy - Brain ... Generalized fatigue - ALS ... Serologic and EMG ... failure - Can be
Causes of Neuromuscular Weakness
 • Spinal Cord: Demyelinating Disease (MS), Epidural abscess, Infarction, Syringomyelia, Tetanus, Transverse
Weakness • Spinal ... Motor Nerves: ALS ... Eaton Syndrome, Myasthenia ... aminoglycosides) • Muscles: Acid ... #Causes #differential
Generalized Weakness - Differential Diagnosis Framework
"l feel weak":
 • Infectious: Influenza, EBV, PNA, Bacteremia, Sepsis
 •
Resp/Heme: CHF, valves ... Polyneuropathy, ALS ... NMJ disorder (Myasthenia ... Diagnosis #causes ... #neurology
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
PCR 50% sensitive ... lung nodules, may also ... RingEnhancing #Lesions #Brain ... #differential # ... diagnosis #causes
Myasthenia Gravis - Summary
 • an autoimmune disease of the postsynaptic neuromuscular junction associated with antibodies
serologic, and EMG ... More likely to cause ... or respiratory weakness ... glucocorticoids - can cause ... diagnosis #management #neurology
Weakness - Differential Diagnosis Framework

Approach To Weakness:
 • Non-neuromuscular disorder (Cardiac, pulmonary etc)
 • CNS ->
Weakness - Differential ... pulmonary etc) • CNS ... nervous system: Brain ... • Infectious: Brain ... Postsynaptic: Myasthenia
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 ... Diagnosis #Summary #Nephrology
CNS Infection in HIV / AIDS - Differential Diagnosis Framework

Principles of HIV-Associated CNS Opportunistic Infections:
 •
HIV / AIDS - Differential ... Demyelinating disease caused ... symptoms such as ... #Infections #differential ... InfectiousDiseases #Neurology
Amyotrophic Lateral Sclerosis (ALS) Summary
ALS: combination of the clinical examination finding of amyotrophy with the pathologic
- Causes progressive ... EMG: LMN Signs in ... MRI: Brain, cervical ... Further testing must be ... conditions listed in differential
Transverse Myelitis Overview

Focal inflammatory disorder of the spinal cord resulting in rapid onset of weakness, sensory
that results in CNS ... • Infectious causes ... out • Brain MRI ... : Check for brain ... #differential