Final answer:
Dysrhythmias may initially be evidenced by various symptoms such as palpitations, lightheadedness, or chest pain. Testing such as an electrocardiogram can help diagnose dysrhythmias.
Step-by-step explanation:
Dysrhythmias, or abnormal heart rhythms, may initially be evidenced by various symptoms. These symptoms include palpitations (feeling the heart skip a beat), feeling a pause between heartbeats, lightheadedness, passing out, shortness of breath, or chest pain. In more serious cases, dysrhythmias can lead to complications such as stroke or heart failure. A number of tests, including an electrocardiogram (ECG) and Holter monitor, can help with the diagnosis of dysrhythmias.