PAD: Public Access Defibrillator. An AED located in a public and easily accessible location. (see AED)

Palpitation: Forcible or irregular pulsation of the heart, usually with an increase in frequency or force, with or without irregularity in rhythm.

Pericarditis: Inflammation of the pericardium.

Pericardium: Sack that surrounds the hear.

Premature Arterial Contraction: An early heartbeat started by the atria.

Premature Ventricular Contraction: An early heartbeat started by the ventricles.

Pulse: The rhythmic expansion of an artery that can be felt with the finger on your wrists, neck and temple, reflects the number of times your heart beats each minute.