What does PAC stand for in EKG interpretation?

In the context of EKG interpretation, PAC stands for Premature Atrial Contraction. A PAC occurs when an ectopic atrial focus generates an impulse that leads to an early contraction of the atria, which disrupts the regular rhythm. This is significant in EKG readings because it can indicate underlying cardiac issues or can arise in healthy individuals without any pathological significance.

Recognizing PACs is vital for scribed documentation since they can be common, and their identification helps assess the rhythm and overall health of the heart. Their appearance on an EKG typically includes a premature, abnormal P wave followed by a normal QRS complex, distinguishing them from other arrhythmias. Understanding this terminology and its implications is essential for effective communication and evaluation within the emergency medical setting.