Understanding Heart Block: First-Degree Heart Block: The electrical impulse reaches the ventricles but moves more slowly through the AV node. It’s the mildest type. Second-Degree Heart Block: Type I (Wenckebach’s AV Block): The signal gets slower until your heart skips a beat. Type II: Some signals don’t reach the ventricles, causing an irregular and slower heartbeat. This is more serious and may require a pacemaker. Third-Degree Heart Block: Complete blockage of the signal from atria to ventric
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This is FIRST-degree heart block! In this rhythm, the atrial impulse is delayed and travels to the ventricles slower 🐢 than normal. So the time from the P wave (the atria contracting) to the QRS complex (the ventricles contracting), is longer! How do we know? The PR interval is greater than 0.20 seconds (one big box)! 🧠 Memory trick for first degree heart block...If the R is far from P, then you have a FIRST degree! Follow Archer NCLEX Review for more heart block tips to know for nursing schoo
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