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EKG 2 > 2 > Flashcards

2 Flashcards

1
Q

Which chamber of the heart receives deoxygenated blood from the bodys circulation

A

Right Atrium

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2
Q

Paroxysmal Supraventricular tachycardia is typically caused by

A

Overexcitement

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3
Q

which cardiac stress test method increases the speed and incline every three minutes

A

Bruce Protocol

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4
Q

the collection of electrical conducting cells that innervate the ventricles are called

A

Purkinje system

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5
Q

what typically happens to the rhythm after a pause in sinus arrest occurs

A

Escape

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6
Q

depolarization of the atrial myocardial cells result in

A

contraction of the atria

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7
Q

which is the correct method attaching the leads to the electrodes

A

connect the snap wire to the electrode before application

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8
Q

which of the following is the group pacemaker cells responsible for firing an action potential

A

Sinoatrial node

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9
Q

which of the following is true regarding microshock

A

the shock is caused by a damaged or frayed cord

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10
Q

which of the following is true regarding junctional bradycardia

A

treatment is immediate trancutaneous pacing

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11
Q

systole can be broken down into four phases. during which phase do the ventricles contract while the semilunar valves remain closed

A

isovolumetric contraction

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12
Q

there are three types of EKG leads. which type of leads are placed on the limbs, and contain only one positve pole

A

augmented leads

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13
Q

which of the following is the appropriate method of ventilating an unresponsive patient with an advanced airway

A

deliver one breath every six seconds

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14
Q

which of the following is true regarding sinus block

A

P waves are not affected

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15
Q

before mounting a completed EKG, what information should be written on the strip

A

Date,time, providers’s name special circumstances

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16
Q

which of the following statment is true regarding atrial fibrillation

A

if p waves are present, the rhythm is not atrial fibrillation

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17
Q

There are 5 types of arrhyhmias. which type causes the electrical current to bypass the normal conduction pathways by directing them to shortcuts

A

preexcitation syndrome

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18
Q

a 70 year old male comes to the emergency department with chest pain. As you prepare to place the electrodes for a 12 lead EKG, he askes how much pain will the EKG will cause him. What would you tell the patient

A

obtaining an EKG is a painless procedure

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19
Q

which of the following is not a criterion for an arrhythmia

A

Narrow qrs complexes

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20
Q

what is the single most important task to prevent the spread of pathogens

A

washing your hands

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21
Q

what type of rhythm is atrial fibrillation

A

irregular

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22
Q

which of the following is true concerning bipolar leads

A

the right arm is always negative

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23
Q

all of the following are normal findings in an infant patient except

A

a heart rate less than 100

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24
Q

which of the following is the group of pacemakers cells responsible for firing an action potential

A

Sinoatrial node SA

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25
Q

what great vessel sends oxygentated blood from the heart to the systemic circulation of the body

A

Aorta

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26
Q

which of the following term refers to dilation of a chamber of the heart

A

enlargment

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27
Q

where should the technician place the EKG strip after teh test is finished

A

in the patients medical record

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28
Q

you examine the EKG machine and after turning it on recieve an error message on the screen. what is the next best action.

A

call your facility’s biomedical engineering

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29
Q

which of the following is not normal symptom during the stress test

A

a drop in blood pressure

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30
Q

which of the following is true regarding electrocardiography

A

an upward QRS complex occurs when an electrical impulse travels towards a positive electrode

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31
Q

which of the following is true regarding ventricular rhythms

A

The p wave is lost in the abundance of wide QRS complexes

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32
Q

which of the following is an appropriate way to interact with patients during an exam

A

reassure the patient that this is a safe procedure

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33
Q

which heart valve is located between the aorta and the left ventricle

A

aortic valve

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34
Q

which of following is not an acceptable method of filing a HIPAA complaint

A

phone

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35
Q

which layer of the heart contains the coronary arteries

A

epicardium

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36
Q

which of the following statement is true regarding premature atrial complex

A

the premature p wave may or may not be followed by a QRS complex

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37
Q

what length of time do the five block oulined in the image represent

A

1 second the

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38
Q

broken recordings, a type of artifact,is caused by

A

a broken wire

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39
Q

what is the ratio chest compression of to breaths when performing two rescue cpr on an unconscious adult

A

30:2

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40
Q

which of the following statments best describes an action potential

A

spontaneous depolarization results in a wave of new action potentials

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41
Q

which of the following is true concerning J point elevaton

A

The EKG will return to baseline with exercise

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42
Q

what important ion is released into the myocardial cells to cause heart muscle contraction

A

calcium

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43
Q

which great vessel returns oxygenated blood from the lungs back to the heart

A

pulmonary vein

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44
Q

you prepare to place electrodes on a 55 year old female for a 12 lead EKG when she asks about risks associated with the test. what is your response

A

possible skin irritation from the adhesive

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45
Q

on a 3 lead EKG, which lead is the most reliable when identifying an artifact

A

lead V1

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46
Q

where is lead AVL located

A

Left arm

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47
Q

which of the following is true regarding P wave asystole

A

only the sinus node is firing

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48
Q

which of the following is true about the HIPPA privacy rule

A

the HIPPA privacy rule extends to protected health information in all form of medial, including paper, electronic, and oral

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49
Q

Somatic tremor, a type of artifact, can be caused by

A

a patient having tremors

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50
Q

which of the following lead placement is correct on a fie lead EKG

A

brown leads to chest

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51
Q

according to the national heart, lung and blood institute, of teh national insitute of health, which value is definition of high blood pressure

A

sytolic pressure of 140 mmhg or greater

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52
Q

you are an EKG tech who is working at the front desk during the night shift. A man comes up to the desk, frantic. He says that he is the uncle of a patients on your floor and would like an update regarding her condition. what is your response

A

verify the persons identity with the patient or the nurse before you disclose any information

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53
Q

systole can be broken down into four phases. During which phase do the ventricles contract while the semilunar valves remain closed

A

isovolumetric contraction

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54
Q

which great vessel returns deoxygenated blood to the right atrium from the upper body

A

superior vena cava

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55
Q

identify the correct sequence of numbers used in the memory method to determine the heart rate

A

300-150-100-75-60-50-43-37-30

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56
Q

select the correct path of blood flow through the human body

A

aorta-arteries-arterioles-capillary bed-venules-veins-vena cava

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57
Q

which of the following can cause a 60 cycle interference artifact

A

a patient using his smartphone

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58
Q

what is a serious adverse effect of prolonged atrial fibrillation

A

blood clots

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59
Q

when should the cardiac stress test be concluded

A

when the patient experiences fatigue

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60
Q

the six precordial leads ( leads v1-v6) are arranged across the chest along a horizontal plane. where is lead v2 placed

A

fourth intercostal space, left sternal border

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61
Q

what type of rhythm is atrial fibrilation

A

irregular

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62
Q

during disatole, artia slightly contract to squeeze its remaining amount of blood in the ventricles. what is this phase called

A

Atrial kick

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63
Q

which heart valve is located between the left atrium and left ventricle

A

mitral valve

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64
Q

which method of calculating heart rate on an ekg strip is considered the fastest.

A

the memory method

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65
Q

which great vessel returns deoxygenated blood to the heart from the lower body

A

inferior vena cava

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66
Q

which of the following is the correct way to place holter monitor leads

A

clipping a male patients chest hair to allow the electrodes to adhere properly

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67
Q

what represents atrial enlargment on an ekg strip

A

prolonged p wave

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68
Q

which of the following is not done prior to the stress test

A

an ergometer is applied to the patients upper arm

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69
Q

which of the following is true regarding accelerate junctional rhythms

A

the heart rate is usually between 60 and 100 beats per minute

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70
Q

when applying electrodes to a patient for holter monitoring, where do you place the white (RA) lead

A

directly below the clavicle and near the right shoulder

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71
Q

which of the following is true regarding ventricular fibrillation

A

its an irregular rhythm

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72
Q

you are taking vitals on a one month old female and find that her heart rate is 160. based on your knowledge of pediatric cardiac function, what do you do

A

document as a normal finding

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73
Q

there are five types of arrhythmias. the type that causes normal sinus rhythm to become too fast or too slow is called

A

arrhythmias of sinus origin

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74
Q

during continous monitoring, what does MCL1 access cor

A

WIde QRS complexes

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75
Q

which of the following is indicated as a treatment for atrial fibrilation lasting greater than 48 hours

A

IV heparin

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76
Q

which of the following temperatures would be expected in a hypothermic patient

A

94.8 f

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77
Q

which of the following is the appropriate measure for storing gel electrodes

A

place the electrodes in a resealable plastic bag

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78
Q

Electrical waves are sent from the SA node to the AV node, where conduction slows down. the reason for this pause in conduction is:

A

to allow time for the atria to contract completly before ventricular contraction

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79
Q

which of the following is true regarding sinus arrhythmia

A

its rate usually varies with the patients breathing pattern

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80
Q

the HIPAA privacy rule includes business associtates as entitlies that are required to comply with the privacy rue. which of the following is not a example of a business associate

A

a third party construction team hired to renovate a clinic

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81
Q

what is the providers correct response when a patient requests a copy of her medical records.

A

to contact the medical records deparment

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82
Q

which stress test method would be appropriate for a 75 year old male who recently recovered from a hip fracture

A

an iv infusion of dobutamine

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83
Q

an increase in muscle mass is called

A

hypertrophy

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84
Q

which of the following is true regarding torasdes de pointes

A

a prolonged QT interval is present

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85
Q

you are performing a cardiac stress test on a 51 year old male with a history of stable angina. which of the following would demonstrate a positive stress test

A

St segment elevation

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86
Q

systole can be broken down into four phases. During which phase does the pressure between the ventricles and pulmonary artery/aorta become equal

A

protodiastole

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87
Q

in what scenario can a provider open the medical record of a patient seen by one of his associates

A

if the provider becomes a part of the treatment team

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88
Q

which is an important first step before performing an EKG on a patient

A

explain the procedure to the patient

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89
Q

The way to distinguish Torsade de Pointes from ventricular tachycardia is

A

The QRS complexes in torsade de pointes vary in axis and amplitude

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90
Q

on an EKG strip, what is counted to determine a patients heart rate

A

the number of QRS complexes

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91
Q

on the EKG, what does the QRS interval measure

A

The duration of ventricular depolarization

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92
Q

which leads are involved with forming the triaxial diagram

A

leads I,II, III

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93
Q

in which of the following scenarios would you terminate a stress test

A

patient states that he wishes to stop test

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94
Q

which pair of leads are simultaneously recorded in the holter monitor

A

Leads V1 and II

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95
Q

which of the following is not appropriate care of EKG equipment

A

Cover all frayed broken wires with electrical tape to prevent electrical injuries

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96
Q

which of the following is true regarding junctional tachycardia

A

if there are no visible p waves, it is considered supraventricular tachycardia

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97
Q

Which of the following AV blocks forces the lower pacemaker of the heart( the ventricles) to assume control of conduction

A

Third degree AV Block

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98
Q

which of the following is included in the rules of mailgnancy for PVC

A

Runs of consecutive PVC

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99
Q

which characteristic of cardiac cells is mechanical

A

contractility

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100
Q

what is the indicated treatment for frequent sinus block rhythms

A

a cardiac pacemaker

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101
Q

which of the following leads are considered the anterior leads

A

V2,V3,V4

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102
Q

which of the following is not measured by pulse rate

A

Blood pressure

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103
Q

What are two consecutive PVCs called

A

Couplets

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104
Q

which of the following is considered an abnormal vital sign

A

SPO2 of 88%

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105
Q

Ventricular depolarization results in the contraction of the ventricles. This is illustrated on the EKG by which waveform.

A

QRS complex

106
Q

what important question do you ask yourself when determining if the rhythm on the EKG is a normal sinus rhythm

A

are the QRS complexes narrow

107
Q

which of the following is a regular but interrupted rhythm.

A

premature atrial complexes (PAC)

108
Q

the location of myocardial infarction can be pinpointed by the affected leads. which leads show occlusion of the right coronary artery, or an inferior infarction

A

leads II,III,and aVF

109
Q

which of the following is an indication for cardiac stress test

A

follow up after cardiac bypass surgery

110
Q

which of the following organizations is not subjected to HIPAA privacy rule

A

Child protective services (CPS)

111
Q

During a patient assessment, you find their pulse to be full, bounding, and rapid. what does this finding indicate

A

Heart Failure

112
Q

which specialized cells of the conduction system innervate the ventricular walls, sending electrical impulses to the ventricle itself

A

purinje fibers

113
Q

which of the following is true regarding a ventricular pacemaker

A

when the pacemaker fires a spike will be recorded followed by a QRS complex

114
Q

which of the following is true regarding ventricular tachy cardia

A

it is a medical emergency

115
Q

which of the following does not have an affect on a persons pulse rate.

A

height

116
Q

What does a V stand for

A

augmented voltage

117
Q

there are five types of arrhythmias. The type that causes electrical activity from a focus other than the sinus node is called:

A

ectopic rhythm

118
Q

which layer of the heart is the heart valves made of

A

endocardium

119
Q

which of the following true regarding oversensing of a pacemaker

A

the pacemaker picks up skeletal muscle artifact and believes it is not supposed to fire

120
Q

you hook a patient up to a 12 lead EKG and see a small spike, followed by a normal P wave and QRS complex. Based on your knowledge of irregular waveforms, you recognize this as:

A

an atrial pacemaker

121
Q

which of the following is appropriate regarding the use and care of the EKG machine ?

A

Turn off the EKG machine after use

122
Q

which of the following lead placement is correct on a five lead EKG

A

white lead over the right arm

123
Q

which of the following is an example of maintaining a clean work enviorment?

A

Keeping supplies stocked and stored when not in use

124
Q

which of the following does not affect the EKG recording

A

patient breathing

125
Q

you are on a telementry floor monitoring a patient when their rhythm suddenly flat lines. what is the next course of action.

A

Go in the patients room and assess their status

126
Q

what is the definition of Vital Signs

A

measurment of the bodys function

127
Q

the major differnce between sinus rhythm adn sinus tachycardia is

A

the rate

128
Q

all of the following may cause bradycardia except

A

fever

129
Q

where is lead AVL located

A

Left arm

130
Q

which rhythm requires transcutaneous pacing

A

junctional bradycardia

131
Q

which of the following is indicated as a treatment for atrial fibrilation lasting greater than 48 hours

A

Iv Heparin

132
Q

systole can be broken down into four phases.during which phase do the ventricles relax and the valves close

A

isovolumetric relaxation

133
Q

a 45 year old female comes to the clinic for a cardiac stress test on the treadmell. what is her target heart rate

A

175

134
Q

which of the following is true regarding cardioversion

A

it delivers a shock in sync with the patients QRS complex

135
Q

what is the purpose of mounting an EKG

A

to secure the strip to the patients chart

136
Q

what length of time does the single small block

A

0.04

137
Q

which of the following is true regarding bipolar lead placement

A

the right arm is always negative

138
Q

what is the most crucial criterion to identify rhythms started by the sinus node

A

matching upright p waves in lead II

139
Q

an increase in duration on an EKG wave represents

A

prolonged depolarization in a hypertrophic heart chamber

140
Q

which of the following is not one of the steps to correctly interpreting a heart rhythm

A

how many p waves are present

141
Q

which characteristic of the cardiac cells is responsible for thier ability to create an impulse.

A

automaticity

142
Q

which lead is the most helpful in identifying a ventricular rhythm

A

lead V1

143
Q

there are five types of arrhythmias. the type that causes unexpected delays in the electrical activity is called.

A

conduction block

144
Q

when does sinus arrest occur

A

when the SA node stops firing

145
Q

the location of a myocardial infarction can be pinpointed by the affected leads. which leads show occlusion of the left main artery( anterolateral infarction)

A

leads I, aVL, and Leads V1-V6

146
Q

which leads are involved in forming the triaxial diagram

A

leads I,II,III

147
Q

when the atrium takes over as teh pacemaker of the heart, it is known as

A

usurpation

148
Q

Diastole can be broken down into three phases. during which phase do the artria contact, squeezing out the remainder of the blood into ventricles

A

atrial kick

149
Q

what does the acronym PHI stand for

A

protected health information

150
Q

what is the definition of an electrocardiogram

A

the printed EKG picture

151
Q

lead III measures which current

A

left arm to left leg

152
Q

the T wave on an EKG represents

A

ventricular repolarization

153
Q

the location of a myocardial infarction can be pinpointed by the affected leads. which leads show occlusion of the right coronary artery, or a posterior infarction

A

VI and any other anterior leads

154
Q

which of the following is true regarding Holter monitoring

A

the holter monitor can detect cardiac arrhythmias otherwise missed by the 12 lead ekg

155
Q

when applying electrodes for a holter monitor on a patient where do you place the red (LL) lead

A

on the left lower abdomen

156
Q

which goverment entity oversees HIPAA and ansers HIPPA complaints

A

us department of health and human services

157
Q

the sinus node is firing at the rate of 70 bpm, howerver the av node begins to fire at a rate of 80 bpm. what is occuring.

A

usurpation

158
Q

what is defining characteristics of ventricular fibrillation

A

lack of QRS complexes

159
Q

what causes the sound of the heartbeat

A

the closing of the heart valves

160
Q

what happens if the sinus node, the pacemaker of the cell, fails to send electrical implulses

A

the av junction takes control as teh pacemaker

161
Q

a proper diagnosis of the left atrial enlargment includes which criteria

A

increased duration of the P wave

162
Q

which of the following is reccomended for obtaining accurate blood pressure

A

sit with your arms posistioned at heart level, resting on a table

163
Q

which of the following is true regarding junctional rhythms

A

its an escape rhythm

164
Q

which of the following temperatures is consired a fever

A

100 degree fahernheiht

165
Q

ventricular hypertrophy is caused by which of the following

A

pressure overload

166
Q

which of the following is true regarding atrial flutter

A

the atrial rate will be between 250 and 360

167
Q

there are instances where the Hipaa privacy rule allows disculosure of protected health information without patient authorization. which of the following is not included instance

A

if the patient is behind in paying thier medical bills

168
Q

a proper diagnosis of left atrial enlargment includes which criteria.

A

increased duration of the p wave

169
Q

what regulatory function is responsible for the rest and digest response which causes a decrease in heart rate

A

parasympathetic nervous system

170
Q

which of the following leads do not contain a positive pole

A

Right leg

171
Q

what is the normal amount of time for a pr interval

A

0.12-0.2 seconds

172
Q

what is the normal time for the QR interval

A

0.06 -0.1 seconds

173
Q

which of the following is true regarding idioventricular rhythms

A

there are no p waves

174
Q

there are three types of EKG leads. which type measures the hearts’ electrical current between two limbs

A

bipolar leads

175
Q

which of the following vital signs require immedidate attention

A

a respiratory rate of 8

176
Q

which of the following is not a criterion for ventricular rhythms

A

premature, wide qrs complexes with a preceding p wave

177
Q

which of the following leads are most commonly used for continous montering

A

leads II and V1

178
Q

which of the following is true concerning first degree AV block

A

the PR interval is longer than 0.2 seconds

179
Q

which of the following is true about normal sinus rhythm

A

p waves have the same shape

180
Q

how many electrodes are placed on the patient for the holter monitor

A

five or more on the chest

181
Q

which of the following arrhythmias is resolved by caratid massage

A

paroxysmal supraventricular tachycardia

182
Q

all of the following are recommended treatments for atrial flutter except

A

defibrillation

183
Q

which of the following is true regarding accelerated idioventricular rhythem

A

it is a benign rhythm seen during an acute infarction

184
Q

you hook a patient up to a 12 lead EKG and see a spike following the QRS complex. based on your knowledge you recognize the cause to be

A

ventricular pacing

185
Q

which chamber of the heart receives blood from the lungs

A

left atrium

186
Q

an 85 year od make comes to the clinic for a stress test using an exercise bike. what is his target heart rate

A

135

187
Q

where are the augmented leads placed

A

left arm

188
Q

which of the following is true regarding the hipaa complaint process

A

a complaint can be filed via mail, fax, email or online

189
Q

which of the following is not subject to regulations oulinded by the HIPAA enforcement rule

A

a third party construction team

190
Q

what occurs when one of the lower pacemakers begins to fire at an accelerated rate, and sreals control from the predominate pacemaker

A

usurpation

191
Q

which specalized cardiac cells are responsible for sending electrical impulses to the ventricles

A

bundle of his

192
Q

in a 12 lead EKG, which leads are placed across the patients chest

A

six precordial leads

193
Q

which of the following activites is safe to perform while wearing a holiter monitor

A

a light job

194
Q

which of the following statments is true regarding sinus bradycardia

A

its slower than normal sinus rhythm

195
Q

what is the target heart rate of a patient during a stress test

A

the patients age subtracted from 220

196
Q

which of the following is true regarding sinus block

A

p waves are not affected

197
Q

which type of cardiac cells are responsible for carrying electrical impulses from the SA node through the atria

A

interatrial tract

198
Q

what does the bottom value of a blood pressure indicate

A

the pressure of the artieries as the heart relaxes

199
Q

which of the following is not considered proteced health information

A

diagnosis

200
Q

which of the following is the correct qrs deflection in the precordial leads

A

V1 negative

201
Q

from which pacemaker cells do junctional rhythms orginate

A

AV junction

202
Q

what occurs when a lower pacemaker takes over the predominate pacemaker, resulting in a slower rate

A

escape rhythm

203
Q

where is the grounding electrode placed to minimize the risk of electrical shock

A

Right leg

204
Q

single large box

A

0.2 seconds

205
Q

you hook a patient up to a 12 lead EKG and notice a small spoke in the rhythm followed by a wide and bizzare QRS complex. based on your knowledge of irregular rhythems, you idendify this abnromailty as

A

the sign of a ventricular pacemaker

206
Q

for continious monitoring, where is lead II placed

A

left abdomen

207
Q

disatole can be broken down into three phases. in which phase does the pressure between the atria and ventricles become equal

A

diastasis

208
Q

As you are performing an EKG, the tracing shows a 2nd degree mobitz block. The patient asks you if the readings normal. what is your answer?

A

instruct the patient that the doctor will talk to them

209
Q

which type of cardiac cells sends electercial impulses from the atria to the Av node

A

intermodal tracts

210
Q

if both the sinoatrial node and Av node fail to generate an impulse. the ventricle will take over as the pacemaker of the heart. How is this reflected on EKG paper

A

there is no P wave

211
Q

what is an important step in determing the heart rate of a rhythm with a premature beat

A

skip the premature beats when counting qrs complexes

212
Q

under what circumstances can your medical information not be shared by your provider

A

if requested by your employer

213
Q

which of the following is considered a negative holter

A

normal sinus rhythm

214
Q

which of the following is true regarding unifocial PVC

A

the pvs are shaped the same

215
Q

there are 5 sections, or titles, in HIPPA. which title discussion the HIPAA privacy rule.

A

Title II

216
Q

what is the heart’s biological attempt to return to a regular rhythm after a pvc

A

complete compensatory pause

217
Q

upon removing the EKG leads, you notice mild skin erythema where the electrodes were placed. What is this

A

a normal finding

218
Q

the part of the ekg that symbolizes atrial depolarization is the

A

P wave

219
Q

which of the following is considered a normal pulse rate

A

85

220
Q

in which of the following patients is stress testing contrainindicated

A

a patient who has an acute myocardial infarction less than 48 hours ago.

221
Q

which of the following type of monitoring is used for cardiac stress testing

A

12 lead EKG

222
Q

Which of the following is true regarding a first degree AV block

A

The PR interval is prolonged

223
Q

which of the following heart rhythm is treated with atropine

A

bradycardia

224
Q

which of the following is an example of maintaining a clean working enviorment

A

keeping the exam room floor clear and free of electrodes.

225
Q

which heart valve is located between the right atrium and the right ventricle

A

triscuspid valve

226
Q

during an acute myocardial infarction, what abnormally can you be seen on the EKG

A

ST segment elevation

227
Q

which of the following demonstrates proper care of EKG leads

A

examine the cables for broken wires

228
Q

what is diastole

A

when the ventricle relax and fill with blood

229
Q

which of the following medications may the patient be adviced to avoid before their stress test

A

beta blockers

230
Q

at what speed should the ekg machine machine be set

A

25 mm/second

231
Q

what effect does the atria functioning as the orginal pacemaker have on the heart.

A

increased heart rate

232
Q

which of the following lead placements is correct on a five lead ekg

A

red leads to left leg

233
Q

what is the difference between sinus arrest and sinus block

A

the number of pauses in the rhythm

234
Q

the type of cells responsible for intitiating depolarization are

A

pacemaker cells

235
Q

which of the following rhythms requires cardioversion for treatment

A

junctional tachycardia

236
Q

there are 5 types of arrhymias. the type that traps electrical activity within a various anatomic/myocardial configuration is called

A

reentract arrhythmias

237
Q

the restoration of cardiac cells resting polarity is

A

repolarization

238
Q

when should the EKG equipment be wiped down

A

after each patient use

239
Q

what group of pacemakers cells take over when the SA node fails to initate conduction

A

AV node

240
Q

what is the difference between wandering atrial pacemaker and multifocal atrial tachycardia

A

heart rate

241
Q

treatment of atrail fibrillation depends on which factor

A

time

242
Q

what is the r-r interval

A

the distance between two QRS complexes

243
Q

which of the following is true regarding tachycardia

A

a drop in heart rate from tachycardia to normal in a cause for concern

244
Q

which of the following leads illustrates negative QRS complexes on an EKG

A

aVR

245
Q

which of the following is not considered a violation of hippa

A

discussing your patient with the tech who is releving you of your shift

246
Q

what measure of time on the EKG does the PR segmen measure

A

the end of atrial depolarization to the start of ventricular depolarization

247
Q

which of the following is not a protocol used in the cardiac stress test

A

modified naughton protocol

248
Q

which of the following patients would not be appropritate for stress testing

A

a 42 year old woman whose current blood pressure is 170/80 without symptoms

249
Q

what is the name of the spaces between in the ribs, where certain EKG leads are placed

A

intercoastal spaces

250
Q

what is the differnce between wandering atrail pacemaker and multifocal tachycardia

A

the rate

251
Q

when applying the electrodes to a patient for holter monitoring, where do you place the brown (v) lead?

A

on the chest depending on lead selection

252
Q

what is important step in determining the heart rate of a rhythm with a premature beat.

A

skip the premature beat when counting qrs complex

253
Q

which of the following medication is not used for pharmalogical stress testing

A

amiodarone(Cordarone)

254
Q

what is shown on an ekg during typical angina

A

st segment depression

255
Q

a 33 year old patient comes to the clinic for a cardicac stress test to be performed on the treadmill. What is the minimum heart rate she can achieve for the test to b valid

A

158

256
Q

which leads are involved in forming the hexaxial diagram

A

leads I,II,III, AVR,AVL and aVF

257
Q

what group of pacemaker cells take over the AV node fails to initiate conduction

A

Ventricles

258
Q

which of the following is the appropriate action preparting for cardiac stress

A

Tape the EKG electrodes if necessary

259
Q

types of heart rhythms on an ekg strip that shows r-r intervals that are interrupted by a premature beat called

A

regular but interrupted rhythms

260
Q

which of the following is true regarding premature ventricular contractions

A

it is a regular but interrupted rhythm

EKG 2 (2 decks)

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