12 Lead ECG: Normal Sinus Rhythm (NSR) ~98 bpm

12-lead ECG: Hyperkalemia with Peaked T Waves Throughout the Precordium

12-Lead ECG: Normal sinus rhythm (NSR) ~82 bpm

12-Lead ECG: Normal Sinus Rhythm (NSR) ~60 bpm

12 Lead ECG: Normal Sinus Rhythm (NSR) ~66 bpm

12-Lead ECG: Normal Sinus Rhythm (NSR) ~69 bpm

12 Lead ECG: Normal sinus rhythm (NSR) with premature atrial contraction (PAC)

3 Lead ECG: Normal Sinus Rhythm (NSR) ~64 bpm

3 Lead ECG: Paced rhythm (~60bpm)