What to look for in the ECG signal

• QRS complex

• R-wave

• P-wave

• T-wave

• PR-interval

• ST-segment

 

 

Normal ECG

 

PVC (Premature Ventricular Contractions)

 

Multiple P-waves  

 

Jump in the ECG (Baseline wander)

 

Elevated ST-segment

 

Noisy ECG

 

Sudden change in heartrate