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What is atrial fibrillation? Atrial fibrillation is an atrial arrhythmia where the upper chambers don’t contract normally, causing higher heart rates in the lower chambers. Find more videos at Hundreds of thousands of current & future clinicians learn by Osmosis. We have unparalleled tools and materials to prepare you to succeed in school, on board exams, and as a future clinician. Sign up for a free trial at Subscribe to our Youtube channel at Get early access to our upcoming video releases, practice questions, giveaways, and more when you follow us on social media: Facebook: Twitter: Instagram: Our Vision: Everyone who cares for someone will learn by Osmosis. Our Mission: To empower the world’s clinicians and caregivers with the best learning experience possible. Learn more here: Medical dis
