> [!Key Points] # Hyperacute T waves - initial T wave tends to be straight (subtle) - if T wave larger than whole QRS, then obvious hyperacute ![[Pasted image 20230516002219.png]] ![[Pasted image 20230516002310.png| note the morphology with straight portion, not just the height]] # aVL: T wave inversion / STD - May be the first marker of an impending inferior wall STEMI - showing reciprocal changes during development of inferior wall STEMI - get repeat ECG! **Normal variants for T inv in aVL:** - LBBB - LVH