TY - CHAP M1 - Book, Section TI - Limb Lead Reversal 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 Y1 - 2021 N1 - T2 - The Atlas of Emergency Medicine, 5e AB - Reversal of the left arm (LA) and right arm (RA) most commonP, QRS, and T predominantly downgoing in lead IP, QRS, T upgoing in lead aVRPrecordial leads unaffectedReversal of the leg leads (left leg [LL] and right leg [RL])Does not commonly produce ECG changes because RL is used as a grounding electrodeReversal of LA-LLTransposition of leads I and II and leads aVF and aVL with reversal of lead IIIReversal of RA-RLTransposition of aVR and aVL and inversion of lead IIIncorrect precordial lead placementIsolated reversal of the usual R-wave progression from V1 to V6 SN - PB - McGraw-Hill CY - New York, NY Y2 - 2024/10/03 UR - accessemergencymedicine.mhmedical.com/content.aspx?aid=1181052835 ER -