Premature atrial complex (PAC) - ECG Recognition • Prematurity and altered P wave morphology. • P wave will look like the sinus P wave if its origin is close to the SAN. • P wave will have low amplitude or inverted in II, Ill and aVF if it is originating the low atrium. • A PAC will have a PR interval of > 0.12 seconds compared to premature junctional complex (PJC) which will be 0.12 seconds or less. #PACs #premature #atrial #complexes #cardiology #diagnosis #ekg #ecg #electrocardiogram #clinical
