RT Book, Section A1 Hsu, Jonathan A1 Scheinman, Melvin M. A2 Crawford, Michael H. SR Print(0) ID 1139744457 T1 Atrial Fibrillation T2 CURRENT Diagnosis & Treatment: Cardiology, 5e YR 2017 FD 2017 PB McGraw-Hill Education PP New York, NY SN 9781259641251 LK accesscardiology.mhmedical.com/content.aspx?aid=1139744457 RD 2024/10/15 AB ESSENTIALS OF DIAGNOSISAbsence of discrete P waves on the electrocardiogram.Irregularly irregular ventricular rhythm.