Final answer:
Atrial flutter is an abnormal heart rhythm characterized by fast and irregular beating of the upper chambers of the heart. It can cause fatigue and shortness of breath. Treatment options include medications and interventions like cardioversion.
Step-by-step explanation:
Atrial flutter is a type of abnormal heart rhythm characterized by a fast and irregular beating of the atria, the upper chambers of the heart. It can cause symptoms such as fatigue and shortness of breath. It is important to monitor for progression to atrial fibrillation, a condition in which the atria beat out of control. This can be done by conducting an echocardiogram and considering interventions like cardioversion or carotid massage. Treatment options include using beta-blockers or calcium channel blockers to control ventricular rate, and prescribing anticoagulants to prevent thrombus formation in the atria.