Normal Sinus Rhythm ECG Waveform - Medical Diagnostic Reference #238070 (License: Personal Use)

This vector-style ECG waveform displays five regular cardiac cycles, each featuring the characteristic P wave (atrial depolarization), QRS complex (ventricular depolarization), and T wave (ventricular repolarization). The consistent interval between R-peaks indicates a steady heart rate, typical of healthy adult resting rhythm. The clean black lines on white background ensure high readability for clinical or educational use.

Used in medical textbooks, online health portals, telemedicine platforms, and patient education materials to illustrate normal heart function; targets users seeking to understand ECG interpretation or verify baseline cardiac activity.