Differential diagnosis of atrial flutter are:
-atrial fibrillation
-junctional tachycardia
-atrial tachycardia
-supraventricular tachycardia
-sinus tachycardia
-atrial fibrillation
-junctional tachycardia
-atrial tachycardia
-supraventricular tachycardia
-sinus tachycardia