Tag p pulmonale
ECG Library BASICS 340 356

P wave

The P wave on the ECG. The P wave is the first positive deflection on the ECG and represents atrial depolarisation. Duration: < 0.12 ms (<120ms or 3 small squares)

ECG Case 021

75-year old smoker presenting with acute dyspnoea and productive cough. Describe and interpret this ECG. LITFL Top 100 ECG