💡 Your quick guide to spotting and managing Atrial Tachycardia AT : 📌 Origin: Ectopic focus in the atria (not the SA node!). Heart Rate: 150-250 bpm ⚡ Symptoms: Palpitations, dizziness, dyspnea, chest discomfort. 🔎 ECG Clues to Spot AT ➊ Regular Narrow QRS ➔ Normal ventricular conduction. ➋ Weird P Waves ➔ Inverted, biphasic, or axis shift (ectopic origin!). ➌ No “Sawtooth” or “Irregularly Irregular” ➔ Rules out AFL/AFib. Mechanisms: Re-entry, triggered activity, or automaticity gone rogue! T