What is the classic ECG finding of a pulmonary embolus? A large S wave in lead I, a Q wave in lead III, and an inverted T wave in lead III indicates acute right heart strain. This pattern only occurs ...
The McGinn-White Sign is the S1Q3T3 pattern seen on the ECG in the setting of acute pulmonary embolism or other causes of acute right heart strain (cor pulmonale). A large S wave in lead I, a Q wave ...
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