Explore a comprehensive 19-minute video lecture on Premature Atrial Contraction/Complex (PAC) ECG interpretation, atrial rhythms, and treatment. Delve into the fundamentals of atrial rhythm, causes, and types of atrial rhythms, with a focus on Premature Atrial Complex. Examine ECG patterns, including bigeminal, trigeminal, and quadrigeminal PACs. Practice interpreting ECGs with multiple examples. Learn about management strategies for PACs. Designed for medical students, doctors, nurses, and USMLE/NCLEX exam candidates, this lecture is part of an extensive ECG interpretation series covering various tachycardias and arrhythmias.