A bad ECG result can indicate various heart conditions or abnormalities that require further evaluation and treatment. Some examples of abnormal ECG readings that can be considered "bad" include: Arrhythmias are irregular heartbeats, which can be abnormal and include conditions like atrial fibrillation or ventricular tachycardia.
ST-segment elevation or depression: This can indicate a heart attack or ischemia (lack of oxygen to the heart muscle).
QT interval prolongation: This can increase the risk of arrhythmias and sudden cardiac arrest.
T wave inversion: This can be a sign of heart disease or coronary artery disease. It's important to note that an abnormal ECG reading does not always mean that a person has a serious heart condition. Further tests and evaluation by a healthcare professional are necessary to determine the cause and severity of the abnormality and to develop an appropriate treatment plan.