Sinus tachycardia at 150 beats/min is present. The downsloping PR segment and upsloping ST segment make a smooth scooped-out curvature and are typical of Ta wave. Just as with the ventricular ...
Electrocardiographic changes are common and typically evolve through four stages: Stage I: diffuse ST-segment elevation (typically concave up) and PR-segment depression are recorded in the first hours ...
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