The Unprofessional Guide to first-degree atrioventricular block

Chapter 1: What Is first-degree atrioventricular block, Really?

Important notice: This guide is for general informational and educational purposes only. It does not constitute medical advice, diagnosis, or treatment. Always consult a qualified healthcare professional before making any medical decisions. Never disregard or delay seeking professional medical advice because of something you read in this guide.

Take a breath. Seriously — sit down if you're standing, put your phone down for a second, and just breathe. You've just been handed a phrase that sounds like it belongs in a medical textbook written by someone with a Latin degree, not a real doctor telling you something about your actual body. "First-degree atrioventricular block." It's a mouthful, it sounds like a diagnosis that should be accompanied by dramatic music, and you probably have a thousand questions racing through your head right now, the loudest of which is probably: Am I okay?

The answer, for the vast majority of people with this exact diagnosis, is overwhelmingly yes. I know it doesn't feel that way right now, and I can't just wave a magic wand and make the anxiety go away, but by the time you finish reading this chapter, you will understand what's happening in your chest, what this diagnosis actually means, and why your doctor probably didn't even blink when they read your EKG.

Your Heart, But in Plain English

First, you need to know a little bit about how your heart works — because it's honestly amazing and understanding it will