353. Features of benign ST elevation / ddx ST depression / In inferior MI, which lead most reliably shows reciprocal ST depression? July 6th, 2008 by reuben in ACS last part should be aVL Back Top Tags: card 352. Describe the earliest ECG finding in AMI and its ddx / What is the baseline used for measuring the ST segment? / ddx ST elevation 354. In which leads are T waves normally upright? / Inverted? / What do ACS-related T wave inversions look like? / Deep symmetric or biphasic T wave inversions in anterior precordial leads suggest Leave a Reply Cancel reply Please post any discussion to the emupdates Reddit page.