A small notch in the QRS where the ST segment begins. The point where the S Wave ends and begins to flatten out. Figure 4.13

The unit of energy used for defibrillation and cardioversion; technically a joule is equal to power (voltage X current) times duration in seconds. 1. Six

Connects the atria to the ventricle and slows the impulse conduction speed sufficiently to allow for atrial kick; the junction consists of the AV node

A cardiac rhythm that occurs as a backup pacemaker when the sinus node fails to initiate an impulse; the junction typically fires at 40-60/minute; the

A junctional escape complex (JEC) typically arrives to help sustain a rhythm that is faltering. It often arrives after the sinus node experiences either an

A cardiac rhythm that occurs as a backup pacemaker when the sinus node fails to initiate an impulse; the junction typically fires at 40-60/minute; the

A cardiac rhythm that originates from the AV junction with a rate > 100/minute; QRS complex is most often narrow with P waves that are