abnormal t wave in ecg meansabnormal ecg sinus tachycardiaabnormal ecg sinus bradycardiasinus rhythm abnormalabnormal sinus rhythm ekgabnormal ecg interpretationmarked sinus bradycardia abnormal ecgecg sinus rhythm left axis deviationsinus rhythm left atrial abnormalityecg sinus tachycardiaecg sinus bradycardiaabnormal ekg means
