The most common ECG finding of an acute pulmonary embolism is sinus tachycardia; however, the classic finding is an S wave in lead I, Q wave in lead III and inverted T waves in lead III (S1Q3T3 ...
Wellen's phenomenon occurs when biphasic T waves are seen in leads V1-V3, or deep symmetric inverted T waves are seen in the precordial leads. Both of these ECG findings are indicative of a severe ...