<prompt> Inveed T waves are seen inHyperkalemiaHypehermiaWellen syndromeCoronary syndrome  <response>: Ans. is c i.e., Wellen syndrome Severe anterior wall Ischemia with or without infarction may cause prominent T-wave inversions in the precordial leads. This pattern sometimes referred to as Wellens T-waves is usually associated with a high-grade stenosis of the left anterior descending coronary aery. Hyperkalemia has tall Tented T-waves. Coronary syndrome Xis characterised by blockage of perforators while the epicardial coronary aery is normal. In these patients stenting of coronaries is not useful. Nitrates are mainstay of therapy. 