What are the causes of tachycardia?
Tachycardia is generally caused by a disruption in the normal electrical impulses that control our heart’s pumping action rhythm – the rate at which our heart pumps. The following situations, conditions and illnesses are possible causes: • A reaction to certain medications • Congenital (present at birth) electrical pathway abnormalities in the heart • Congenital abnormalities of the heart • Consuming too much alcohol • Consumption of cocaine and some other recreational drugs • Electrolyte imbalance • Heart disease which has resulted in poor blood supply and damage to heart tissues, including coronary artery disease (atherosclerosis), heart valve disease, heart failure, heart muscle disease (cardiomyopathy), tumors, or infections. • Hypertension • Hyperthyroidism (overactive thyroid gland) • Smoking • Certain lung diseases Sometimes the medical team may not identify the exact cause of the tachycardia. Atria, ventricles and the electrical circuitry of the heart The human heart consists o
