857 results
Posterior Reversible Encephalopathy Syndrome (PRES) Overview

Clinico-Radiological Syndrome, characterized by:
 • Headache
 • Seizures
 • Altered mental
may precede the neurologic ... Etiology: • Pathophysiology ... the underlying cause ... - 10-25% BP reduction ... with AEDs until cause
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Erb's Palsy is caused ... palsy" is a common cause ... Tunnel Syndrome - Causes ... Dislocation - May cause ... Myotomes #diagnosis #neurology
Causes of Hypokalemia - Differential Diagnosis Algorithm
Increased Loss 
 - Increased GI Loss
 - Increased Urinary
Causes of Hypokalemia ... Increased Cell Production ... Diagnosis #Algorithm #causes ... potassium #low #pathophysiology
Mytomes - Segmental Innervation of Muscles
Shoulder	Abduction	C5	Axillary Nerve
Shoulder	Adduction	C6-C8	Thoracodorsal Nerve
Elbow	Flexion	C5	Musculocutaneous Nerve
Elbow	Extension	C7	Radial Nerve
Wrist	Extension	C6	Radial Nerve
Fingers	Flexion	C8	Median Nerve
Fingers	Abduction	T1	Ulnar Nerve
Hip	Flexion	L2	Nerve to Psoas
Hip	Extension	S1	Inferior Gluteal
Muscles Shoulder Abduction ... Nerve Shoulder Adduction ... Nerve Fingers Abduction ... Gluteal Nerve Hip Abduction ... #Orthopedics #Neurology
Schematic representation of the major sources of ammonia production and its excretory pathway (GI = gastrointestinal,
although hepatic causes ... namely, the many causes ... many non-hepatic causes ... = Non hepatic causes ... deficiency #Ammonia #Pathophysiology
Eosinophils (Eos) and hypereosinophilia (HE)
Caused by eosinophilopoietic cytokines
Common causes:
 - Drug reaction
 - Helminth infection
 -
hypereosinophilia (HE) Caused ... cytokines Common causes ... : - Drug reaction ... infection - Allergic reaction ... disease Rare causes
Concussion - Acute Pathophysiology

#Concussion #Pathophysiology #neurology #signs #symptoms
Concussion - Acute Pathophysiology ... #Concussion #Pathophysiology ... #neurology #signs
Anticonvulsants as Mood Stabilizers: Mechanism and Side-effect
Examples: Valproate, Carbamazepine, Lamotrigine
 • Mild anticholinergic effect -> Drowsiness
constipation • Allergic reaction ... mediated cytotoxic reaction ... , asthenia • Neurologic ... Systemic effect -> Nausea ... #SideEffects #Pathophysiology
Jaundice - Pathophysiology and Causes

- Amy Chung, MD, MSc @AmyChung 

#Jaundice #Pathophysiology #Differential #Unconjugated #Causes #Diagnosis
Jaundice - Pathophysiology ... and Causes - ... #Jaundice #Pathophysiology ... #Unconjugated #Causes
Childhood Immunization Schedule: Why we immunize
 • Diphtheria Toxin -> URT inflammation causes pseudomembrane with hardened
URT inflammation causes ... severe swelling causes ... weakness & asymmetric reduction ... > Inflammation causes ... peds #pediatrics #pathophysiology