The most common test is an electrocardiogram (EKG). Many imaging tests can also help doctors diagnose a heart rhythm disorder. During the physical exam, your doctor will listen to your heartbeat, check your pulse, check for swelling and look for signs of other diseases. Your doctor will perform a physical evaluation and discuss your medical history, including family history, symptoms, medication and physical activity. Some heart rhythm disorders may cause more serious symptoms, such as: Many people with a heart rhythm disorder don't experience any signs or symptoms, while others may experience: Some medications can also cause an arrhythmia. High blood pressure, diabetes, sleep apnea and infections that damage the heart can also increase the risk for a heart rhythm disorder.
Heart rhythm disorders are also more common in people who have other diseases or conditions that weaken the heart, such as heart attack, heart failure and congenital heart defects.
Certain disorders, however, are more common in children and young adults. Heart rhythm disorders are common in older adults and most serious arrhythmias affect people over the age of 60.
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