2771 results
Antiarrhythmics - Vaughan Williams Classification:
CLASS 1 - Sodium Channel Blockers:
 • MOA: Block fast Na+ channels
receptors, and Ca ... MOA: Block slow Ca ... channels to prevent Ca ... inotropy) ACCP Cardiology ... pathophysiology #cardiology
Antiarrhythmics Pharmacology Summary
Cardiac Conduction Phases:
Phase 0 - Ventricular Depolarization:
 • Na+ channels open leading to a
Plateau Phase • Ca ... leading to slow Ca ... receptors, and Ca ... inotropy) ACCP Cardiology ... pathophysiology #phases #cardiology
Approach to ECGs - Syncope Syndromes
Electrolytes
 • ↑K - brady, peak T, wide QRS, no P,
, long P • ↑ Ca ... see below) • ↓ Ca ... Checklist #diagnosis #cardiology
Digoxin effect on Electrocardiogram (EKG)
Digoxin is a cardiac glycoside from the foxglove leaf
Mechanism
 - Inhibits Na-K
intracellular Ca ... Electrocardiogram #EKG #Cardiology
Digoxin Pharmacology and Pathophysiology
1) Na/K ATPase Pump - Digoxin works by directly binding to and inhibiting
increase. 2) The Na/Ca ... increase, the Na+2/Ca ... Pathophysiology #cardiology
Approach to ECGs
Check
 - Age, gender, name
 - 25mm/s; 10mm/mV
 - 1mm = 40ms; 0.1 mV
Rate
<300-360 ms: ↑ca ... electrocardiogram #cardiology
Endocarditis Summary

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV substance use
• IV catheter
• Recent
Gastric & Ovarian CA ... Regurgitation • Colon CA ... diagnosis #management #cardiology
Severe Heart Failure & Cardiogenic Shock - Management Checklist 
Evaluation 
 - EKG & echocardiography
Lytes including Ca ... #HeartFailure #Cardiology
Malignant Pericardial Effusion and Tamponade on POCUS Echocardiogram - A4C
CA patient with known pericardial effusion who
Echocardiogram - A4C CA ... Echocardiogram #A4C #cardiology
Calcium Electrolyte Repletion
Always correct Ca for albumin before deciding if it is abnormal
Always correct Ca ... Corrected Ca ... = Measured Ca +