ECG Masterclass: Identifying Lethal Rhythms 🏥 In the ICU or Emergency Room, the monitor tells a story. As a Nursing Officer, you must be the first to read it. Here are the "Big Four" rhythms you can never afford to miss: 1. Ventricular Tachycardia (V-Tach) Appearance: "Tombstone" appearance. Wide, bizarre QRS complexes occurring rapidly. Nursing Action: Check for a pulse immediately! If pulseless, start CPR and prepare for Defibrillation. 2. Ventricular Fibrillation (V-Fib) Appearance: Chaotic, wavy line. No identifiable P, QRS, or T waves. The heart is just "quivering." Nursing Action: Defibrillation is the only cure. "V-Fib = D-Fib." Start CPR until the shock is ready. 3. Asystole (Flat Line) Appearance: A near-flat line on the monitor. Nursing Action: Check leads first (is the patient disconnected?). If true, start CPR and administer Adrenaline (Epinephrine). Note: You do NOT shock Asystole. 4. ST-Segment Elevation (STEMI) Appearance: The ST segment is elevated above the isoelectric line (The "Fireman's Hat"). Nursing Action: Indicates an acute Myocardial Infarction (Heart Attack). Notify the cardiologist and prepare for MONA (Morphine, Oxygen, Nitroglycerin, Aspirin).#Bexyhub