Figure 031_5035.

Atrial fibrillation and atrial flutter. A, polymorphic F waves replacing P waves during atrial fibrillation. B, monomorphic biphasic F waves replacing P waves during atrial flutter.

Figure 031_5035.  Atrial fibrillation and atrial flutter. A, polymorphic F waves replacing P waves during atrial fibrillation. B, monomorphic biphasic F waves replacing P waves during atrial flutter.