ECG Basics EXPLAINED: Reading the Squiggle — PQRST Decoded (Visual Process)

ECG Basics EXPLAINED visually — how to read the squiggle from zero. What the pen actually draws (the electrical wave, not the squeeze), one beat decoded (P, PR gate delay, QRS, T), the paper grid as a clock (small box 0.04s, large box 0.20s), measuring PR/QRS/QT in boxes, heart rate with the 300 stairs, regular vs irregular rhythm, and the six-check normal sinus checklist. Plus 3 exam questions with every wrong answer explained, and Memory Locks: "the pen follows the spark, not the squeeze," "300 down the big-box stairs," "divide, don't vibe." Series: Heart & Pressure — Visual Process Series. Visual study aid only — confirm details with your program's materials. STAY SHARP, NURSES!