The most common ECG finding in the setting of a pulmonary embolism is sinus tachycardia. However, the “S1Q3T3” pattern of acute cor pulmonale is classic; this is termed the McGinn-White Sign.

Note: The pattern of a LPFB sometimes appears similar to the S1Q3T3 pattern sometimes present in a patient with an acute pulmonary embolism. This ECG finding is termed the McGinn-White sign.

Long journeys, especially by air, can silently raise your risk of blood clots. Here's what every traveller should know about pulmonary embolism before boarding their next trip.