Chapter 10

Question 0

When PVC falls between two sinus beats without interfering with the rhythm

Answer 0

Interpolated beat

Question 1

Single ectopic complex that occurs earlier than the next expected complex and arise from an irritable site in the ventricles

Answer 1

Premature ventricle complex

Question 2

Shape of the PVC

Answer 2

Morphology

Question 3

PVCs that are alike in appreance

Answer 3

Unifocal

Question 4

PVCs with different shapes the pat originate from different sites within the ventricles

Answer 4

Multifocal

Question 5

Another name given to a run or grouping of three or more PVCs in a row

Answer 5

Salvos

Question 6

Decreased supply of oxygenated blood to the heart

Answer 6

Myocardial ischemia

Question 7

(Also called ventricular escape rhythms) results when the discharge rate of higher pacemakers becomes less than that of the ventricles or when impulses from higher pacemakers fail to reach the ventricles

Answer 7

Idioventricular rhythms

Question 8

When the rate of an IVR rhythm falls below 20 BPM

Answer 8

Agonal

Question 9

Occurs when the rate of the ectopic pacemaker in an IVR exceeds 40 BPM

Answer 9

Accelerated idioventricular rhythm

Question 10

Rhythm in which three or more PVCs arise in sequence at a rate of greater than 100 BPM; commonly overrides the normal pacemaker of the heart

Answer 10

Ventricular tachycardia

Question 11

A rhythm that lasts for more than 30 seconds

Answer 11

Sustained rhythm

Question 12

A run of V tach that lasts for more than 30 seconds

Answer 12

Nonsustained rhythm

Question 13

Refers to a patient who presents with hypotension (low blood pressure) chest pain, shortness of breath, and changes in mental status

Answer 13

Hemodynamically unstable

Question 14

Refers to a patient who presents a normal blood pressure, absence of chest pain, and no notable change in mental status

Answer 14

Hemodynamically stable

Question 15

Similar to ventricular tachycardia; morphology of QRS complexes show variations in width and shape; life threatening dysrhythmia

Answer 15

Torsades de pointes

Question 16

Is a fatal dysrhythmia that occurs as a result of multiple weak ectopic foci in the ventricles; there is no coordinated atrial or ventricle contraction and no palpable pulse

Answer 16

Ventricular fibrillation

Question 17

The absence of all ventricular activity; also called cardiac standstill

Answer 17

Ventricular asystole

Question 18

Sensation that the heart is skipping beats and beating rapidly

Answer 18

Palpations

Question 19

Absence of palpable pulse and myocardial muscle activity with the presence of organized electrical activity (excluding V tach or V fib) on the cardiac monitor

Answer 19

Pulseless electrical activity (PEA)

Question 20

Refers to the process of the passage of an electrical current through the heart during a specific part of the cardiac cycle for the purpose of terminating certain kind of dysrhythmias

Answer 20

Cardioversion

Question 21

The process of passing an electrical current through a fibrillating heart to depolarize the cells and allow them to repolarize uniformly, thus restoring an organized normal rhythm after the onset of fibrillation

Answer 21

Defibrillation