Chapter 3

Question 1

Represents atrial depolarization

Answer 1

P Wave

Question 2

Represents ventricular depolarization is measured from the end of the PR interval

Answer 2

QRS Complex

Question 3

The junction between the QRS complex and the ST Segment

Answer 3

J Point

Question 4

represents ventricular repolarization

Answer 4

T Wave

Question 5

Not always visible but represents a repolarization of the bundle of His and Purkinje Fibers

Answer 5

U Wave

Question 6

From the start of the P wave to the start of the QRS complex

Answer 6

PR Interval

Question 7

Represents the amount of time between atrial depolarization cycles

Answer 7

P-P Interval

Question 8

Represents the amount of time between ventricular depolarization cycles between R waves

Answer 8

R-R interval

Question 9

From the start of the QRS complex to the end of the T-Wave

Answer 9

QT interval

Question 10

From the end of the P Wave to the start of the QRS complex

Answer 10

PR Segment

Question 11

From the end of the QRS Complex to the start of the T Wave

Answer 11

St Segment

Question 12

A normal EKG tracing But there is heart rate of less than 60/ min

Answer 12

Sinus Bradycardia

Question 13

Normal EKG with the exception of the heart rate greater than 100/min

Answer 13

Sinus Tachycardia

Question 14

A slight irregularity in the rhythm

Answer 14

Sinus Dysrhythmia

Question 15

A break in the normal EKG pattern

Answer 15

Sinus Arrest

Question 16

More severe than sinus arrhythmias

Answer 16

Atrial Flutter

Question 17

Even more severe as there is no organized contraction of the atria

Answer 17

Atrial Fibrillation

Question 18

Occur at the AV node or tissue because the impulses are being generated at the AV junction

Answer 18

Junctional Arrhythmias

Question 19

An early impulse that occurs before the next expected beat

Answer 19

Premature Junctional Complex

Question 20

Reflects an impulse originating from the AV node, which is acting as the back-up pacemaker

Answer 20

Junctional Escape Rhythm

Question 21

Rhythm is the same as the escape rhythm, but the rate is 60 to 100/ min

Answer 21

Accelerated Junctional Rhythm

Question 22

Rhythm is the same as the escape and accelerated rhythm but the heart rate will be between 100/ and 150/ min

Answer 22

Junctional Tachycardia Rhythm

Question 23

Narrow complex tachycardia is not necessarily a Junctional dysthymia the heart rate will be greater than 150/min

Answer 23

Supraventricualr Tachycardia or Narrow Complex Tachycardia

Question 24

Tend to be urgent and life threating if medical intervention is not initiated

Answer 24

Ventricular Arrhythmias

Question 25

Three or more PVC’s in a row with a ventricular rate greater than 100/min

Answer 25

Ventricular Tachycardia

Question 26

An emergency state in which the ventricles are not contracting but quivering and there is no cardiac output

Answer 26

Ventricular Fibrillation

Question 27

Occurs when only the ventricular pacemaker is functioning

Answer 27

Idioventricular Rhythm

Question 28

Results when all the pacemakers of the heat Sa node Av node Purkinje Fibers have failed

Answer 28

Agonal Rhythm

Question 29

When there is a block somewhere in the electrical conduction pathway, which results in delayed or absent ventricular depolarization

Answer 29

Heart Block

Question 30

Occurs when there is interference somewhere in one of the bundle branches

Answer 30

Bundle Branch Block

Question 31

The current will move through the right bundle branch for right ventricular contraction

Answer 31

Left Bundle Branch Block

Question 32

The septum is depolarized normally and the left ventricle is still activated by the left bundle Branch

Answer 32

Right Bundle Branch

Question 33

Represents a Delay in conduction from the SA node to the AV node

Answer 33

First Degree Atrioventricular Block

Question 34

Known As Mobitz I or Wenkebach for the person who identified it

Answer 34

Second Degree Atrioventricular Block Type 1

Question 35

Also known as MovitzII , this is the classic form of heart block

Answer 35

Second Degree Atrioventricular Block Type II

Question 36

Complete heart block occurs when all electrical impulses that originate above the ventricles are blocked

Answer 36

Third Degree Atrioventricular Block

Question 37

Symptoms of VF include dizziness a feeling of impending doom, chest discomfort

Answer 37

Ventricular Fibrillation

Question 38

Often results in precipitous drops in blood pressure and level of consciousness due to decreased cardiac output

Answer 38

Ventricular Tachycardia

Question 39

The complete cessation of electrical activity in the heart

Answer 39

Asystole

Question 40

Patients who have a heart rhythm that demonstrates third degree AV block can progress to cardiac arrest

Answer 40

Complete Heartblock

Question 41

An artifact in the EKG tracing that is a result of the electrical impulse produced by an artificial pacemaker

Answer 41

Pacemaker Spikes

Question 42

Five Step Method Heart Rhythm

Answer 42

Calculate the atrial and ventricular rates Assess the Pwave Pr Interval and QRS Duration Document the rhythm using descriptive terminology Measure from the beginning of one wave to beginning of the next Tracing of about 6 to 10 seconds is necessary to assess the regularity of the P and QRS waveforms

Question 43

3 Methods to Calculate heart rate

Answer 43

1500 Sequence 6 Second

Question 44

Maximum Heart Rate

Answer 44

220 - Patients Age

Question 45

Target Heart Rate

Answer 45

Maximum heart rate x 0.7

Question 46

From the start to the end of the QRS complex

Answer 46

QRS Interval

Question 47

The first downward wave of the QRS complex

Answer 47

Q-Wave

Question 48

The negative deflection following the R wave

Answer 48

S- Wave

Question 49

The initial positive deflection

Answer 49

R Wave

Question 50

SA Node Arrhythmias

Answer 50

P Wave Is Present P Wave is Upright and Rounded P Wave has an amplitude less than 25 mm P Wave duration is less than 100 milliseconds

Question 51

Possible PVCs patterns

Answer 51

Unifocal - Single early PVC indicates one irritable area Multifocal -PVCs with Multiple Shapes Indicate more than one irritable area Interpolated- PVC occurs with no interruption in the normal rhythm Bigeminy Trigeminy Quadgeminy Coupling