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Cardiac Rhythm Review

Across
Second-degree heart block, type I
Decreased supply of oxygen to tissue
Lower heart chambers
Every other complex in a rhythm is a premature ventricular complex
Additional or abnormal electrical conduction pathway
Upside down
Complex that originates in the AV junctional area, arrives early, and is followed by a compensatory pause
Heart rate faster than 100 electrical pulses per minute
A pacemaker is set to initiate an electrical impulse at a constant or __________ rate.
Refractory period during which cardiac cells have repolarize enough that some cells can respond to electrical impulse repolarization of the ventricles
Dysrhythmia that occurs when an electrical impulse follows an accessory pathway, the bundle of Kent, and bypasses the AV node to reach the ventricles
Ability of cardiac cells to shorten, causing the myocardium to contract
Depolarization of the atria
occurs when the SA node does not initiate an electrical impulse, causing a pause on the rhythm strip
Usually originates from a single site in the ventricles and has a rate of 101 to 250 electrical pulses per minute
ability of cardiac cells to transmit an electrical pulse to other cardiac cells
Upper heart chambers
Middle layer of the heart muscle
Two PVCs in a row
Down
Only “normal” cardiac rhythm
Ability of cardiac cells to respond to electrical impulses generated by an artificial pacemaker
The _______________ delays electrical impulses between the atria and the ventricles
Complex that originates from the ventricles and occurs earlier than expected
Surgically inserted device designer to recognize VF and VT and defibrillate the heart
Complete lack of electrical activity in the heart: no pulse
Heart rate slower that 60 electrical impulses per minute
reduced oxygen in any of the body’s cell
Phase of readiness
time between depolarization and repolarization of cardiac cells
Originates from one site in the ventricles
transmits the electrical impulse from the atria to the bundle branches
An AV ___________________ pacemaker is used to stimulate depolarization of both the atria and ventricles
Loss of blood volume
Heart blocks occur when there is a/an ____________ or complete interruption of the normal cardiac conduction pathway
the AV junctional area is located in the right atria, near the _______________
type of refractory period during which cardiac cells have not repolarized and cannot contract
Depolarization of the ventricles