138 results
EKG CHANGES AS A RESULT OF CHANGES IN NA OR K CHANNEL CONDUCTION - GRAPHIC BY
EKG CHANGES AS A ... RESULT OF CHANGES ... IN NA OR K CHANNEL ... CONDUCTION - GRAPHIC ... Channelopathy #Channels
Antiarrhythmics Pharmacology Summary
Cardiac Conduction Phases:
Phase 0 - Ventricular Depolarization:
 • Na+ channels open leading to a
Depolarization: • Na+ channels ... Phase • Ca++ channels ... Potential: • K+ channels ... Block fast Na+ channels ... Classification #Classes
Antiarrhythmics - Vaughan Williams Classification:
CLASS 1 - Sodium Channel Blockers:
 • MOA: Block fast Na+ channels
CLASS 1 - Sodium Channel ... Block fast Na+ channels ... 3 - Potassium Channel ... MOA: Block K+ channels ... Block slow Ca++ channels
Drugs affecting the cardiac action potential. The sharp rise in voltage ("0") corresponds to the influx
to the sodium-channel ... voltage-sensitive calcium channels ... Antiarrhythmics #Classes
Causes of Peripheral Weakness - With and Without Sensory Changes - Differential Diagnosis Algorithm
With Sensory Changes:
Causes of Peripheral ... Without Sensory Changes ... With Sensory Changes ... Without Sensory Changes ... Diagnosis #Algorithm #Causes
Chronic prepatellar bursitis with chronic changes.

MCW EM Ultrasound @ https://twitter.com/MCW_EM_US

#Chronic #prepatellar #bursitis #POCUS #Knee #Ultrasound
bursitis with chronic changes ... prepatellar #bursitis #POCUS
Hyperkalemia shortens repolarization; changes in the T wave provide the earliest clues to hyperpotassemia.
 - At
repolarization; changes ... provide the earliest clues ... repolarization causes ... in conduction causes ... Hyperkalemia #EKG #ECG #Changes
Antiarrhythmics - Vaughan Williams Classification
Class I (Ia, Ib, Ic) - Na+ Channel Blockade
 • Slows depolarization
Ib, Ic) - Na+ Channel ... Class III - K+ Channel ... Class IV - Ca2+ Channel ... Classification #Classes
Causes of Peripheral Weakness with Sensory Changes - Differential Diagnosis Algorithm
Radiculopathy:
 • Disc
 • Spondylosis
 •
Causes of Peripheral ... Weakness with Sensory Changes ... Diagnosis #Algorithm #Causes
Bradycardia Diagnostic and Management Algorithm

CONSIDER ETIOLOGY (not inclusive): 
 - STRUCTURAL: sick sinus, AV block, ischemia,
digoxin, calcium channel ... LIFE THREATENING CAUSES ... beta-blockers, calcium channel