Chapter 8 Flashcards

0
Q

Irregular muscle connection between the atria and ventricles that bypasses the AV node

A

Accessory pathway

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1
Q

The group of dysrhythmias produced when the SA node fails to generate an impulse and the atrial tissue or areas in the internodal pathways initiate an impulse

A

Atrial dysrhythmias

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2
Q

Occur when pacemaker sites wander or travel from the SA node to other pacemaker sites in the atria, the internodal pathways, or AV node

A

Wandering atrial pacemaker rythms (WAP)

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3
Q

Rhythm created when the rate of the WAP rhythm reaches 100BPM or greater

A

Multifocal atrial tachycardia

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4
Q

A single electrical impulse that originates outside the SA node in the atria

A

Premature atrial contraction (PAC)

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5
Q

Reactivation of myocardial tissue for a second or subsequent time by the same electrical impulse

A

Reentry

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6
Q

When a single irritable site in the atria initiates many electrical impulses at a rapid rate, characterized by the presence of regular atrial activity with a picket-fence or sawtooth pattern

A

Atrial flutter

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7
Q

A ventricular rate of less than 60BPM

A

Slow ventricular response

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8
Q

Ventricular rate of 100-150

A

Rapid ventricular response

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9
Q

When multiple disorganized ectopic atrial foci generate electrical activity at a very rapid rate (atrial rate varies from 350-750 BPM)

A

Atrial fibrillation

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10
Q

General term that encompasses all fast dysrhythmias in which the heart rate is greater than 100 BPM

A

Supraventricular tachycardia (SVT)

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11
Q

Refers to a sudden onset or cessation or both

A

Paroxysmal

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12
Q

Methods utilized to stimulate baroreceptors (located in the internal carotid and aortic arch) when these receptors are stimulated the vagus nerve releases acetylcholine resulting in slowing of the heart rate

A

Vagal maneuvers

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13
Q

Preexcitation syndrome and atrioventricular conduction disorder characterized by two AV conduction pathways and is often identified by a characteristic delta wave seen on an electrocardiogram at the beginning of the QRS complex

A

Wolff-Parkinson-White WPW syndrome

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14
Q

The final phase of diastole, atrial contraction forces remaining blood into the ventricles: provides 15 percent to 30 percent of ventricular filling

A

Atrial kick

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