Antiarrhythmics - Vaughan Williams Classification Class ...

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Antiarrhythmics - Vaughan Williams Classification
Class I (Ia, Ib, Ic) - Na+ Channel Blockade
 • Slows depolarization in fast AP cells
 • Widens QRS complex
Class II - Beta Receptor Blockade
 • Slows depolarization in slow AP cells
 • Slows sinus rate and prolongs PR interval
Class III - K+ Channel Blockade
 • Prolongs action potential
 • Prolongs QT interval
Class IV - Ca2+ Channel Blockade
 • Slows depolarization in slow AP cells
 • Slow sinus rate and prolongs PR interval

- Dr. Eric Strong @DrEricStrong - Strong Medicine https://www.youtube.com/c/EricsMedicalLectures/

#Antiarrhythmics #VaughanWilliams #Classification #Classes #cardiology #pharmacology

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Dr. Gerald Diaz

@GeraldMD

Board Certified Internal Medicine Hospitalist, GrepMed Editor in Chief 🇵🇭 🇺🇸 - Sign up for an account to like, bookmark and upload images to contribute to our community platform. Follow us on IG:  https://www.instagram.com/grepmed/ | Twitter: https://twitter.com/grepmeded/

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