40 results
Typical ECG changes associated with hyperkalemia. 
→ Peaked T wave
→ Wide PR interval, Wide QRS duration,
Typical ECG changes ... associated with hyperkalemia ... T wave → Wide PR ... note that ECG changes ... #hyperkalemia #ECG
Hypokalemia Evaluation Algorithm

Before evaluating hypokalemia, life threatening complications such as arrhythmias and paralysis should be looked
Hypokalemia Evaluation ... Algorithm Before ... evaluating hypokalemia ... treated with IV potassium ... #diagnosis #Algorithm
Antiarrhythmics - Vaughan Williams Classification:
CLASS 1 - Sodium Channel Blockers:
 • MOA: Block fast Na+ channels
Vaughan Williams Classification ... depolarization • ↑ PR ... 3 - Potassium Channel ... velocity) - ↑ PR ... #Pharmacology #Classification
Causes of Hyperkalemia - Differential Diagnosis Algorithm
 • Increased Intake
 • Reduced Excretion (IV potassium with
Causes of Hyperkalemia ... Differential Diagnosis Algorithm ... Excretion (IV potassium ... Transcellular Shift #Hyperkalemia ... Differential #Diagnosis #Algorithm
Hyperkalemia - Management Algorithm
 • IV calcium
 • IV insulin and glucose and/or salbutamolt
 • Consider
Hyperkalemia - Management ... Algorithm • IV ... and ECG changes ... waves, Prolonged PR ... #potassium #high
Antiarrhythmics - Vaughan Williams Classification
Class I (Ia, Ib, Ic) - Na+ Channel Blockade
 • Slows depolarization
Vaughan Williams Classification ... , Ic) - Na+ Channel ... rate and prolongs PR ... rate and prolongs PR ... VaughanWilliams #Classification
Antiarrhythmic Medications - Vaughan Williams Classification - Summary Table
Class I agents - Sodium Channel Blockers⠀
Class II
Vaughan Williams Classification ... agents - Sodium Channel ... III agents - Potassium ... Channel Blockers ... #Medications #Classification
Antiarrhythmics Pharmacology Summary
Cardiac Conduction Phases:
Phase 0 - Ventricular Depolarization:
 • Na+ channels open leading to a
Vaughan Williams Classification ... depolarization • ↑ PR ... 3 - Potassium Channel ... velocity) - ↑ PR ... #Pharmacology #Classification
Checklist Approach to Hypokalemia

Consider risk factors for arrhythmia:
 - EKG changes (especially QT prolongation)
 - Digoxin
Checklist Approach to Hypokalemia ... arrhythmia: - EKG changes ... pomagnesemia Evaluation ... route = severe hypokalemia ... /hr for severe hypokalemia
Hypokalemia - Differential Diagnosis
Poor Intake 
 - Starvation
 - Anorexia
GI Losses 
 - Vomiting / NG
Hypokalemia - Differential ... DrEricStrong #Hypokalemia ... Diagnosis #Low #Potassium ... #Table #Classification ... #Causes