CH 8 Introducing the Atrial Rhythms

Question 0

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

Answer 0

Accessory Pathway

Question 1

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

Answer 1

Atrial Dysrhythmia

Question 2

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

Answer 2

Wandering Atrial Pacemaker ( WAP ) rhythms

Question 3

rhythm created when the rate of the wandering atrial pacemaker rhythm reaches 100 BPM or greater

Answer 3

Multifocal Atrial Tachycardia ( MAT )

Question 4

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

Answer 4

Premature Atrial Contraction ( PAC )

Question 5

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

Answer 5

Reentry

Question 6

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

Answer 6

Atrial Flutter

Question 7

A ventricular rate of less than 60 BPM

Answer 7

Slow Ventricular Response

Question 8

A ventricular rate of 100 to 150 BPM

Answer 8

Rapid Ventricular Response

Question 9

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

Answer 9

Atrial Fibrillation

Question 10

general term that encompasses all fast ( tachy) dysrhythmias in which the heart rate is greater than 100BPM

Answer 10

Supraventricular Tachycardia ( SVT )

Question 11

refers to a sudden onset or cessation or both

Answer 11

Paroxysmal

Question 12

methods utilized to stimulate barorecptors ( 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

Answer 12

Vagal Maneuvers

Question 13

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

Answer 13

Wolff-Parkinson White (WPW) Syndrome

Question 14

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

Answer 14

Atrial Kick