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EKG > Chapter 3 > Flashcards

Chapter 3 Flashcards

1
Q

Represents atrial depolarization

A

P Wave

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2
Q

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

A

QRS Complex

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3
Q

The junction between the QRS complex and the ST Segment

A

J Point

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4
Q

represents ventricular repolarization

A

T Wave

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5
Q

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

A

U Wave

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6
Q

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

A

PR Interval

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7
Q

Represents the amount of time between atrial depolarization cycles

A

P-P Interval

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8
Q

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

A

R-R interval

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9
Q

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

A

QT interval

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10
Q

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

A

PR Segment

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11
Q

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

A

St Segment

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12
Q

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

A

Sinus Bradycardia

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13
Q

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

A

Sinus Tachycardia

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14
Q

A slight irregularity in the rhythm

A

Sinus Dysrhythmia

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15
Q

A break in the normal EKG pattern

A

Sinus Arrest

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16
Q

More severe than sinus arrhythmias

A

Atrial Flutter

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17
Q

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

A

Atrial Fibrillation

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18
Q

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

A

Junctional Arrhythmias

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19
Q

An early impulse that occurs before the next expected beat

A

Premature Junctional Complex

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20
Q

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

A

Junctional Escape Rhythm

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21
Q

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

A

Accelerated Junctional Rhythm

22
Q

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

A

Junctional Tachycardia Rhythm

23
Q

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

A

Supraventricualr Tachycardia or Narrow Complex Tachycardia

24
Q

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

A

Ventricular Arrhythmias

25
Q

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

A

Ventricular Tachycardia

26
Q

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

A

Ventricular Fibrillation

27
Q

Occurs when only the ventricular pacemaker is functioning

A

Idioventricular Rhythm

28
Q

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

A

Agonal Rhythm

29
Q

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

A

Heart Block

30
Q

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

A

Bundle Branch Block

31
Q

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

A

Left Bundle Branch Block

32
Q

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

A

Right Bundle Branch

33
Q

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

A

First Degree Atrioventricular Block

34
Q

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

A

Second Degree Atrioventricular Block Type 1

35
Q

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

A

Second Degree Atrioventricular Block Type II

36
Q

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

A

Third Degree Atrioventricular Block

37
Q

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

A

Ventricular Fibrillation

38
Q

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

A

Ventricular Tachycardia

39
Q

The complete cessation of electrical activity in the heart

A

Asystole

40
Q

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

A

Complete Heartblock

41
Q

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

A

Pacemaker Spikes

42
Q

Five Step Method Heart Rhythm

A

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

43
Q

3 Methods to Calculate heart rate

A

1500

Sequence

6 Second

44
Q

Maximum Heart Rate

A

220 - Patients Age

45
Q

Target Heart Rate

A

Maximum heart rate x 0.7

46
Q

From the start to the end of the QRS complex

A

QRS Interval

47
Q

The first downward wave of the QRS complex

A

Q-Wave

48
Q

The negative deflection following the R wave

A

S- Wave

49
Q

The initial positive deflection

A

R Wave

50
Q

SA Node Arrhythmias

A

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

51
Q

Possible PVCs patterns

A

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

EKG (4 decks)

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