What are the possible causes of an abnormal ECG?

Electrocardiogram (ECG) is a test that evaluates the electrical activity of the heart in individuals. Abnormal ECG findings may arise from various causes. In general, abnormal ECG results could be due to medication effects, electrolyte imbalances, arrhythmias, ventricular hypertrophy or dilation, myocardial ischemia, and other factors. Depending on the underlying cause, targeted treatment should be carried out under medical supervision. It is recommended to seek timely medical attention and early treatment for any discomfort. Specific analyses are as follows:

1. Medication effects: Certain medications may affect cardiac activity, leading to abnormal ECG results. Symptoms such as palpitations, dizziness, and fatigue may also occur. It is recommended to adjust the dosage or switch to alternative medications under physician guidance to improve the condition.

2. Electrolyte imbalance: Imbalances in electrolytes can interfere with the heart's electrical activity, causing ECG abnormalities such as T-wave changes. Symptoms may include palpitations, muscle weakness, and fatigue. It is advised to replenish deficient electrolytes under medical supervision.

3. Arrhythmia: Arrhythmias may include tachycardia (fast heart rate) or bradycardia (slow heart rate), which can appear on an ECG as irregular heartbeat patterns. Symptoms may include palpitations, dizziness, chest tightness, and shortness of breath. Medications such as quinidine sulfate tablets, procainamide hydrochloride tablets, and verapamil hydrochloride tablets may be used to alleviate symptoms.

4. Ventricular hypertrophy or dilation: This condition may be caused by hypertension, heart disease, or other underlying issues. ECG findings may show widened QRS complexes or ST-segment changes. Symptoms may include fatigue, palpitations, and dizziness. Treatment should be directed at the underlying cause as prescribed by a physician.

5. Myocardial ischemia: Myocardial ischemia refers to inadequate blood supply to the heart muscle, often due to coronary artery narrowing or blockage. On ECG, this may manifest as ST-segment depression or elevation. Symptoms may include chest pain, shortness of breath, and nausea. Treatments may include angioplasty or coronary artery bypass grafting.

Any instance of abnormal ECG findings requires evaluation and management by a qualified physician. If an abnormal ECG is detected, it is advisable to consult a doctor promptly for professional advice and appropriate treatment.