RT Book, Section A1 Huis in ‘t Veld, Maite A. A1 Mattu, Amal A1 Thurman, R. Jason A2 Knoop, Kevin J. A2 Stack, Lawrence B. A2 Storrow, Alan B. A2 Thurman, R. Jason SR Print(0) ID 1181052583 T1 Atrial Flutter T2 The Atlas of Emergency Medicine, 5e YR 2021 FD 2021 PB McGraw-Hill PP New York, NY SN 9781260134940 LK accessemergencymedicine.mhmedical.com/content.aspx?aid=1181052583 RD 2024/04/19 AB Regular narrow-complex tachycardia.Flutter waves appear in a rapid sine wave or “sawtooth” pattern, usually in the inferior leads (II, III, aVF).Atrial activity in lead V1 often appears as rapid P waves at a rate approximating 300 bpm.