9 results
Atrial Fibrillation Overview

Symptoms:
Palpitations, light-headedness, dizziness, dyspnea, exercise intolerance, chest pain, near-syncope, syncope.

1. Why?
Cardiac:
• Valvular heart disease
•
Atrial Fibrillation ... Palpitations, light-headedness ... Decompensated HF ... Rate Control • ... Cardiology #Management
Treatment of Stable Narrow-Complex Tachycardia
Regular Rhythm:
 • Attempt vagal maneuvers
 • Give adenosine 6 milligrams IV
pulmonary disease or CHF ... Treat underlying cause ... fibrillation or ... Treat underlying cause ... Treatment #management #cardiology
Atrial Fibrillation (A-Fib) Summary

Symptoms:
• Palpitations, light-headedness, dizziness, dyspnea, exercise intolerance, chest pain, near-syncope, syncope.

Why?
Cardiac:
	• Valvular heart
Atrial Fibrillation ... Palpitations, light-headedness ... Decompensated HF ... electrical) • Antiarrhythmic ... diagnosis #management #cardiology
Acute Atrial Fibrillation - Initial Options for Rate Control
Diltiazem IV
 •  Rapid onset and rapidly
Acute Atrial Fibrillation ... IV bolus can cause ... #Fibrillation # ... Rate #Control #pharmacology ... #management #cardiology
Widened Pulse Pressure - Differential Diagnosis and Pathophysiology

Pulse pressure is the difference between the systolic blood
Diagnosis and Pathophysiology ... fibrillation ... fibrillation at ... a rate of 23.3% ... #causes #cardiology
Antiarrhythmics Pharmacology Summary
Cardiac Conduction Phases:
Phase 0 - Ventricular Depolarization:
 • Na+ channels open leading to a
Antiarrhythmics ... Pharmacology Summary ... contraction of atrial ... #Pharmacology # ... #pathophysiology
Antiarrhythmics - Vaughan Williams Classification:
CLASS 1 - Sodium Channel Blockers:
 • MOA: Block fast Na+ channels
Antiarrhythmics ... Vaughan #Williams #Pharmacology ... Classification #Classes ... #pathophysiology ... #cardiology
RA/CVP Waveform Interpretation

Central venous pressure (CVP) or right atrial pressure (RAP) waveform tracings can often times
pressure (CVP) or right ... fibrillation/flutter ... “cannon waves” caused ... filling of RA in late ... Interpretation #Diagnosis #Cardiology
Digoxin Pharmacology and Pathophysiology
1) Na/K ATPase Pump - Digoxin works by directly binding to and inhibiting
Digoxin Pharmacology ... and Pathophysiology ... intracellular calcium causes ... Decreased heart rate ... #cardiology