A 50-year-old woman presents with palpitations. She reports symptoms of an upper respiratory infection and has a low grade fever. The following ECG is obtained:
Key Points Definition: A rare arrhythmia in which a secondary atrial focus fires at its own inherent rate, largely “shielded” from sinus node impulses. Characteristic ECG Finding: Two distinct P-wave…
A 17-year-old male with no significant PMHx presents to the ED with palpitations. He has no associated symptoms and is otherwise well. Vital signs are normal, but he is noted…