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EKG 2 > 3 class ekg nha > Flashcards

3 class ekg nha Flashcards

1
Q

which of the following is the minimum number of electrodes that may be attached to a patient for Holter monitoring

A

5

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2
Q

When preparing a patient for an EKG in the supine position, where should the technician stand to apply the electrodes.

A

Left

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3
Q

which of the following sinus rhythms has a heart rate of more than 100/min

A

Sinus Tachycardia

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4
Q

in which of the following rhythms is the PR interval absent

A

Ventricular Tachycardia

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5
Q

a technician must document which of the following information in a patients electronic medical record regarding an EKG procedure?

A

Date and time of the EKG

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6
Q

An EKG technican is preparing a patient for an EKG and notices that the patient is grabbing their chest and reporting chest pain. Which of the following conditions should the technician suspect?

A

Tachycardia

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7
Q

A technician is monitoring a patient who is experiencign angina during a treadmill stress test. Which of the following actions should the technician take?

A

Reduce the speed of the treadmill

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8
Q

which of the following findings is a contraindication to a patient is a contraindication to a patient undergoing a stress test?

A

Congestive heart failure

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9
Q

a technician is preparing to put the EKG machine away at the end of the day. Which of the following actions should the technician take?

A

Wipe the machine down with a nonabrasive cleaner

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10
Q

A technician is preparing to perform an EKG on a patient who has bilateral leg amputation. The technician should adjust which of the following leads for the patient?

A

Lower extremity leads

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11
Q

During an exercise stress test, a technician should observe the patient for which of the following

A

Fatigue

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12
Q

Which of the following tracings would indicate atrial flutter

A

the F wave have a saw toothed appearance

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13
Q

The septal wall of the heart is viewed by which of the following leads

A

V1 and V2

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14
Q

A technician is monitoring a patient who is undergoing a stress test. The technician should collect which of the following data from the patient

A

Oxygen saturation

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15
Q

While an EKG technician is preparing a patient for exercise stress testing, the patient complains of mild chest tightness. Which of the following steps should the technician take first

A

Obtain vitals form the patient

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16
Q

Which of the following is a contraindication to performing an exercise stress test

A

The patient is having a myocardial infarction

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17
Q

an EKG technician to preparing a patient for a 12 lead EKG. Which of the following limb electrodes produces the aVF reading

A

Left leg

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18
Q

After performing a nonstandard EKG on a patient, the gain setting should be returned to which of the following as the standard

A

10 mm/mV

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19
Q

Which of the following locations should a technician apply a spygmomananometer

A

Right Brachial

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20
Q

When running a 5 lead EKG on a patient, which of the following electrodes serves as the ground electrode

A

Green

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21
Q

Standard EKG paper is sensitive to damaging effects from which of the following

A

Heat

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22
Q

A technican is reviewing an EKG strip with a QRS complex of 0.02 seconds. The technician should identify the findings as a an indication of

A

Ventricles are firing at a quick pace

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23
Q

Which of the following methods of calculating heart rate involves counting the number QRS complexes and multiplying that

A

6 second methods

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24
Q

Which of the following colors is designated for the chest leads on an EKG machine

A

Brown

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25
Q

A patient reports dizziness when writing up following an EKG. The technician should anticipate which of the following findings

A

Postural hypotension

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26
Q

The Einthoven triangle is formed by which of the following leads

A

bipolar leads

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27
Q

a technician is assisting in a sleep study and recognize heart rate changes associated with respiration on a patients EKG tracing. which of the following terms best describes these changes

A

Occasionally irregular

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28
Q

Which of the following location should a technician use to measure blood pressure in a patient who is postopertative following mastectomy on her right side

A

left arm

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29
Q

A technician is performing and EKG on a preoperative patient and notices fine artifact in all of the leads. Which of the following actions should the technician take to solve this problem

A

instruct the patient to relax and breathe quietly

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30
Q

a technician is performing an EKG on a patient who has a permanent pacemaker. Which of the following findings indicates that he pacemaker is firing capture

A

the pacemaker spikes are not followed by complexes

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31
Q

which of the following actions is necessary to ensure a quality EKG recording is produced

A

Check the alligator clips for residual electrolyte get after each patient use

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32
Q

which of the following scenarios demonstrates an EKG technicians proper understanding of patient confidentiality

A

a technician tells his partner ???

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33
Q

The period of time from the start of ventricular depolarization to the end of ventricular repolarization is known as which of the following

A

QT interval

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34
Q

which of the following actions should a technician take to reduce artifacts while obtaining EKG tracings

A

clean the electrodes before reusing them

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35
Q

which of the following describes a positive deflection that occasionally happens prior to the P wave

A

U wave

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36
Q

Prior to performing exercise electrocardiography, how many electrodes are applied for the baseline EKG?

A

10

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37
Q

A technician is caring for a patient whose EKG monitor shows ventricular fibrilation. Which of the following actions should the technician take first

A

assess the patients responsivness

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38
Q

while monitoring a patient during exercise stress testing, and EKG technician should report which of the following

A

syncope

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39
Q

An EKG tech is performing a 12 lead EKG on a pt who is alert and responsive. The monitor reads no activity on the baseline. Which of the following is an appropriate action for the technican to take

A

clean the electrodes and reattach

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40
Q

an EKG technican is preparing to perform telemetry monitoring on a patient, in which of the following locations should the technican attach the electrodes

A

Chest

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41
Q

if present, the shallow wave that follows the T wave represents which of the following

A

late ventricular repolarzation

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42
Q

a technican should recognize which of the following as an abnormal waveform related to myocardial injury

A

T wave inversion

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43
Q

when placing electrodes for a holter monitor on a patient , which of the following resources should a technican consult

A

the manufactures guide

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44
Q

a tech is insstructing a on the use an ambulatory monitor. Which of the following statements by the patient indicattes understanding of the test instructions

A

I will check the monitor green light

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45
Q

a wide bizzare qrs complex is a characterstic of which of the following arrhythmias

A

ventricular arrhythmia

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46
Q

on a 12 lead EKG the 5th intercoastal space, left midaxillary line the location of which of the following electrodes

A

V6

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47
Q

a stress test must be stopped when a patient experinces which of the following

A

cold and clammy skin

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48
Q

a tech is teaching a patient about telemetry monitoring. which of the following statements by the pt indicates an understanding of of the instruction

A

I should avoid caffenine while being monitored

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49
Q

which of the following is the control on the EKG machine that increases or decreases the voltage of the tracing

A

milivolt

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50
Q

a technican completes an EKG and notes that the strip shows erratic spikes. which of te following is the cause of this artifact

A

wire is detached

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51
Q

Which of the following statements by the pt about HOlter monitor testing demonstrates understanding of the procedure

A

I should avoid caffenated beverge while wearing the holter monitor

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52
Q

which of the following describe an atroventricular paced rhytm

A

the pacemaker spikes are seen before every p wave and qrs complex

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53
Q

which of the following is the standard paper speed on an EKG machine

A

25mm/second

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54
Q

A tech performing a 12 lead EKG and notices the pt hear rate is 44/min. Which of the following does this heart rate reflect

A

bradycardia

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55
Q

which of the following istructions should the tech give when preparing a pt fo a period of holter monitoring

A

continue with your regular exercise routine

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56
Q

which of the following actions should an EKG technican take first when a pt EKG tracing appears to be life threating

A

notify the provider

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57
Q

a technician is performing a 12 lead EKG on a patient. The presence of deep or wide q waves of the tracing
should alert the technician to which of the following conditions

A

myocardial infarction

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58
Q

a technican is performing an ekg under the supervision of a physican on a patient who is experercing superventricular tachycardia. the paper is 50mm.second. which of the following actions should the technican take to ensure the best possible tracing

A

continue recording the EKG at 50mm/second

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59
Q

which of the following directions should a technican give to a patient who is scheduled for an exercise stress test

A

do not consume any caffeine for 3 hours prior to the test

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60
Q

T wave inversion st segment changes and the pathologic Q waves indicate which of the following conditions

A

completed myocardial infarction

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61
Q

which of the following is an appropriate action for a tech to take to ensure accuracy when performing a 12 lead EKG

A

place 12 electrodes on the patients torso and limbs

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62
Q

During the first stage of Bruce protocal stress test, the pt reports feeling lightheaded and states that he is going to pass out. which of the following actions should the technican expect the provider to take

A

stop the test and help the patient to a nearby chair

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63
Q

A tech notes mulitiple small spikes of identical shape on an EKG tracing. the tech should recognize that this finding indicates which of the following complications

A

alternating current interference

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64
Q

a technician is preparing to perform a EKG on a pt who has dextrocrardia. Which of the following actions should the technician take

A

reposition the precordial leads to the right side of the chest

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65
Q

an 80 year old patient who has a history of parkinson disease is scheduled for a routine EKG. Which of the following artifacts will most likley be present on the EKG due to the clients condition

A

somatic tremor

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66
Q

a technican is reviewing an EKG strip with a QRS complex of 0.20 seconds. the technican should identify this finding as an indication of which of the following

A

conduction through the ventricles is occuring at a slow pace

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67
Q

the standard leads measuring which of the following

A

the simulatenous flow of electrical currents in two directions

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68
Q

a technican is preparing to perform an EKG on a pedatric patient. which of the following actians should the tech take to prevent inaccurate readings

A

apply the chest lead v3 to the right side of the chest

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69
Q

A technician is assisting with a stress test for a 50 year old m patient. which of the following is the target heart rate for this pt.

A

170./min

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70
Q

a technican is connecting a holter monitor to a patient who asks why their heart is being moniored. which of the following responses by the technican is appropriate

A

I will see if the provider is available to answer your question

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71
Q

a technican is verifying the calibration of an EKG machine.the tech knows that the standard calibration mark should be which of the following amplitudes.

A

10 small boxes

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72
Q

which of the following parts of an ekg tracing should a tech review for information about venticular repolarization

A

t wave

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73
Q

a technican can move a patient’s bed away from the wall tohelp to resolve which of the following artifacts

A

alternating current interferene

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74
Q

the black lead on the 5 lead ekg is placed on which of the following

A

LA

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75
Q

a technican is applying the electrodes to a pt prior to a period of Holter monitoring The techican should recognize that the electrode wires are coded by which of the following

A

color

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76
Q

a tech is performing an ekg on a patient who has parkinsons disease and notices interference on the reading.Which of the following actions should the technican take

A

Have the pt put his hands palm down under his buttocks

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77
Q

Atrial conduction on an EKG is represnted by which folllowing

A

P wave

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78
Q

which of the following is the highest priority for a tech when monitoring a patient during an exercise stress test

A

provide for the patients safety

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79
Q

which part of the conduction system delays the electrical impulses to allow the atria to complete their contractions

A

Av node

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80
Q

which of the following statements should a tech include in the teachings when explaining telemetry monitoring to a patient

A

the device will allow for a 12 lead EKG recording to be printed at the bedside

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81
Q

while performing an EKG a tech notices a flatline racing on the monitor. Which of the following actions should the technican take

A

check the pt

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82
Q

a tech is performing an ekg on a patient, which of the following lines represents a period of zero electrical activity

A

isoelectric line

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83
Q

a technican is measuring a pt pulse oximetry. which of the following measurements should the tech use

A

oxygen saturation

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84
Q

a tech assisting with an exercise stress test for an adult pt who goes into cardiac arrest. which of the followng actions should the technican take

A

stop the test

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85
Q

a technican is preparing a 26 year old female pt who has intermittent palpitations for outpatient testing. Which of the following tests should the technican prepare to be prescribed for this patient

A

3 lead Holter

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86
Q

which of the following EKG measurements differentiates idioventricular rhytm from junctional escape rhytm

A

p wave direction

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87
Q

an ekg tech is preparing for Holter monitoring, which fof the following information should the technican include

A

you will be able to go home with he monitor

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88
Q

which of the following portions of the EKG reading is created by an electrode that is placed on the 4th intercoastal space o the left sternal border

A

V2

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89
Q

a technican is asked to calcuate a patients heart rate from an EKG. Which of the following methods is the most accurate for the tech to use

A

1500 method

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90
Q

the normal rate of the heart when the electrical impulse comes from the Sa node is

A

60-100

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91
Q

the chief pacemaker of the heart is the

A

SA node

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92
Q

The R wave is the first positive deflection after the P wave

A

True

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93
Q

The ability of the heart to initate an impulse is called

A

automaticity

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94
Q

The ability of the heart to initate an impulse is called

A

automaticity

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95
Q

The normalPR intervral is

A

.12 to .20 sec

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96
Q

the inherent rate of junction is

A

40-60

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97
Q

the wave represents

A

atrial depolarization

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98
Q

the normal QRS complex is

A

.04-.12 seconds

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99
Q

The wave on an EKG which represents ventricular repolarization is called the

A

T wave

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100
Q

the indications for a pacemaker are the following

A

symptomic sinus brady cardia, idioventicular rhytms, 2nd avb type mobitz II, 3rd degree heart block

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101
Q

this is what type of pacemaker

A

Av sequential pacemaker( paces atria and ventricles)

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102
Q

Three questions asked when analyzing an ECG strip with pacemaker spikes are

A

1 is the chammber being paced
is the pacemaker sensing the patients inherent rhyth
m is there a pulse with each the pacer rhythm

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103
Q

the three problems a pacemaker may have are

A

failure to fire
failure to capture
under sensing

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104
Q

what is the difference between an EKG and an ECG

A

thre is no differnce

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105
Q

what are types of blood pressure

A

systolic and diastolic

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106
Q

the first clear beat when taking blood presure is

A

the systolic blood pressure

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107
Q

the deflections that are encountered below the isoelectric line belong to

A

the negative field

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108
Q

the deflections that are encountered below the isoelectric line belongs to

A

the negative field

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109
Q

which are elements of an EKG reading

A

PQRST

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110
Q

what are normal electrocradiographic interals for a healthy adult

A

T wave 0.10 seconds
Pr interval of 0.14 seconds
QRS complex of 0.09 seconds

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111
Q

what part of an EKG is named after willem Einthoven

A

The placement of the limb electrodes

112
Q

what are electrodes

A

conductor of electric current

113
Q

which of the following is not a lead in an EKG

A

V10

114
Q

what does depolarization mean

A

activation of the myocardial cells

115
Q

which is the first element of an EKG

A

P wave

116
Q

which of the following is an element of the electrical pathyway

A

bundle of his
purkinje fibers
sa node

117
Q

which are the vital signs

A

respirations, blood presure, pulse and temperature

118
Q

which of the following is a false statment

A

RR intervals represent atrial repolarization

119
Q

which is the normal value of the systolic blood pressure in an adult

A

90-120 mm.hg

120
Q

what are electrolytes

A

chemical elements capable of producing electricity

121
Q

the precordial electrodes are attached to the patients

A

thorax

122
Q

which of the following is considered a hypertensive value

A

180/90

123
Q

which are the types of circulation

A

systemic and pulmonary

124
Q

which system does the heart belong in

A

cardiovascular system

125
Q

in order to take manual blood pressure, you will need

A

a sphygmomanometer and a stethoscope

126
Q

How many leads does an EKG machine produce

A

12

127
Q

which fingers are used in order to properly measure pulse

A

middle and ring finger

128
Q

which is our first option when taking temperature

A

oral

129
Q

During the first stage of a Bruce protocol stress test, the patient reports feeling lightheaded and states that he is going to pass out. which of the following actions should the technican expect the provider to take

A

stop the testand help the patient to a neraby chair

130
Q

t waves inversions st segment changes and the pathological q waves indicates which of the following conditions

A

completed myocardial infarction

131
Q

which of the following is the minimum number of electrodes that may be attached to a patient for holter monitoring

A

5

132
Q

when preparing a patient for an EKG in the suspine position where should a technican stand to apply the electrodes

A

patients left side

133
Q

which of the following sinus rhythms has a heart rate of more than 100.min

A

sinus tachycardia

134
Q

which of the following tracing would indicate atrial flutter

A

the f waves have a saw tooth appearnce

135
Q

when running a 5 lead EKG on a patient, which of the following electrodes serves as the ground electrode

A

green

136
Q

standard EKG paper is senstive to daming effects from which of the following

A

heat

137
Q

a technican is reviewing an EKG strip with a QRS complex 0.02 seconds. the technican should identify this finding as an indication of

A

ventricles are fireing at a quick pace

138
Q

which of the following method of calculating heart rate involves counting the number of QRS complexes and multiplying that

A

6 second method

139
Q

the einthoven traingle is formed by which of the following leads

A

bipolar leads

140
Q

a tech is asisting in a sleep study and recognizes rate changes assoiated with respiration on a patients EKG tacing.

A

occasinally irregular

141
Q

the locations a tech use to measure blood pressure in a pt who is postoprative following a masectomy on her right side

A

left arm

142
Q

the period of time from the start of ventricular depolarization to the end of venticular polarization as which of the following

A

qt interval

143
Q

describe a positive deflection that occationally hapens prior to the p wave

A

u wave

144
Q

prior to performing exercise electrocardiography, how may electrodes are applied for the baseline ekg

A

10

145
Q

a technican should recognize which of the following as an abnormal waveform related to myocardial injury

A

t wave inversion

146
Q

a wide bizzare QRS complex is a characteristic of which of the following arrhythmias

A

ventricular arrhythmia

147
Q

on a 12 lead EKG the 5th intercoastal space, left midaxillary line is the location for which of the following electrodes

A

v6

148
Q

which of the following are considered bipolar leads

A

D1,DII, DIII

149
Q

which of the following are considered unipolar leads

A

V1,V2,V3,v4,v5,v6,avr,avl,avf

150
Q

the positive pole of the AVL goes

A

left arm

151
Q

the positve pole of the AVR goes to

A

Right arm

152
Q

teh positive pole of the AVF goes to

A

left foot

153
Q

DIII leads is found in

A

left arm negative, left foot positive

154
Q

in which of the following cases should the leads be inverted

A

patients with dextocardia and children

155
Q

which of the following is he standard paper speed on an ekg machine

A

25mm/seconds

156
Q

if present, the shallow wave that follows the t wave represent which of the following

A

late ventricular repolarization

157
Q

which of the following describes a positive deflection that occaasinally happens prior to the pwave

A

U wave

158
Q

after performing a nonstandard EKG on a patient, the gain setting should be returned to which of the following as teh standard.

A

10mm.mv

159
Q

best way to diagnose cardiomegaly

A

meausre the cardiothorac ration on an xray

160
Q

an unxpected sound during a cardiac cycle means

A

heart murmer

161
Q

what is a common sign of tetralogy of fallout

A

cyanotic skin

162
Q

which types of murmers are caused by growth spurts in children

A

functional

163
Q

which of the following are common symptoms for cardiopathy

A

angina, faintness, and sharpness of breath

164
Q

the apex of the heart is formed by

A

the tip of the left ventricle

165
Q

The left atrium recieves blood from the

A

pulmonary veins

166
Q

the heart is divided into __ chambers but functions as a__ sided pump

A

4,2

167
Q

side of the heart is a low pressure system that pumps venous blood to the lungs

A

Right

168
Q

side of the heart is a high presure system that pumps atrial blood to the systemic circulation

A

Left

169
Q

the thick muscular layer of the heart wall that contains the atrial and ventricular muscle fibers necessary for contraction is the

A

myocardium

170
Q

which blood vessel comes out of the left ventricle

A

the aorta

171
Q

the right atria recieves blood from

A

the vena cava

172
Q

the left artia recieves blood from

A

the pulmonary viens

173
Q

the direction of blood flow through the heart is best described by which of the following

A

Right atrium Right ventricle Pulmonary artery lung pulminary viens left atrium left ventricle

174
Q

blood flows from the right atrium through the__ valve into the right ventricle

A

triscupsid

175
Q

Rapid ejection of blood from the ventricle chambers of he heart occurs because the___ and valves__ open

A

pulmonic, aortic

176
Q

the inside layers of the heart to the outside are

A

endocardial, myocardial, and epicardial

177
Q

which of the following are semiulunar valves

A

aortic and pulmonic

178
Q

when the left ventricles contracts, freshly oxygenated blood flows through the __ valve into the __

A

aortic, aorta

179
Q

heart is constuted by

A

2 atria and 2 ventricles

180
Q

the valve that seperates the right atria from the right ventricle is called

A

tricuspid

181
Q

the valve that seperates the left atria from the left ventricle is

A

mitral or bicuspid

182
Q

the heart pacemaker is

A

the sa node

183
Q

the electric impulse conductive way in the heart is

A

SA node, AV node, Bundle of His, and Purkinjer FIbers

184
Q

the bipolar leads are

A

DI,DII, DIII

185
Q

the monopolor leads are

A

V1,V2,V3,V4,V5,V6,AVR,AVL, AVF

186
Q

the precordial leads are

A

V1, V2,V3,V4,V5,V6

187
Q

where is teh positive electrode placed in lead I

A

left arm

188
Q

where is positive electrode placed in leade III

A

left leg or foot

189
Q

the V1 electrode is placed

A

4th intercostal space next to the sternum

190
Q

the V2 electrode is placed in

A

4th left intercoastal space next to the sternum

191
Q

the V3 electrode is placed in

A

between V2 and V4

192
Q

the V4 electrode is placed

A

5th left intercostal space with media clavicle line

193
Q

the V5 electrode is placed

A

5th left intercostal space with anterior axillar line

194
Q

the V6 electrode is placed in

A

5th left intercostal space with media axillar line

195
Q

The RA electrode is placed

A

Right Arm

196
Q

the LL electrode is placed

A

Left leg

197
Q

the DIII lead is found in

A

left arm negative, left positive foot

198
Q

the DII lead is found in

A

RIght arm negative, left foot positive

199
Q

the DI lead is found in

A

Right arm negative, left arm positive

200
Q

P wave represents

A

atrial depolarization

201
Q

the SA node is located in

A

the right atrium

202
Q

The Q wave is

A

the first deflection to the bottom before R

203
Q

the intrinsic electricy refers to

A

the electricity produced by the heart on its own

204
Q

the QRS complex represents

A

ventricular depolarization

205
Q

when a cardiac cell is relaxed, the state is known as

A

repolarization

206
Q

the ground electrode is found in

A

the right leg

207
Q

the t wave represents

A

ventricular repolarization

208
Q

Pr segment wave represents

A

Delay at the AV node

209
Q

the no electrical activity represents

A

isoelectric line

210
Q

the R to R interval is the distance between

A

The R waves in successive beats

211
Q

the normal value of a PR interval is

A

from 0.12 to 0.20 sec

212
Q

the norma value of the QRS complex is

A

less than 0.10.sec 0.11.sec

213
Q

the normal value of the P wave is

A

less than 0.11 sec

214
Q

the intrinsic rate of the atrioventicular av bundle is__ eats/min

A

40-60

215
Q

the intrinsic rate of the SA node is

A

60-100

216
Q

the intrinisic rate of the ventricles is__ beats min

A

20-40

217
Q

How do you determine whether the atrial rhythm on an ECG tracing is regular or irregular

A

compare p to p interval

218
Q

in the hearts conduction system, the __ recieves an electrical impluse from the Bundle of His and relays it to the Purkinje fibers in the ventricle myocardium

A

right and left bundle branches

219
Q

in the hearts conduction system, the__ recieves an electrical impulse from the left bundle branches and relays it to the ventricular myocardium

A

Purkinje Fibers

220
Q

what does the QRS complex represent

A

venticular depolarization

221
Q

the normal pacemakeer of he heart is the __ node, which is found in the__ atrium, and has and instricnic firing rate of__ beats.min

A

sinotrial, right, 60-100

222
Q

on an ECG what is the first negative deflection seen after the P wave

A

Q wave

223
Q

leads II records the differnce in electrical potential between the __ leg and__ arm

A

left, right

224
Q

leads II, III, and AVF view the __ surface of the left ventricle

A

inferior

225
Q

leads I, aVL, V5 and V6 view the__surface of the left ventricle

A

lateral

226
Q

the absolute refractory periods begins with the onset of the __ and terminates__

A

QRS complex, at approxatley the apex of the T wave

227
Q

the QT intervals is measured from the beginning of the __

A

QRS complex to the end of the T wave

228
Q

in a adult, the normal duration of the QRS complex

A

0.10 seconds or less

229
Q

the intrinsic rate of the purkinje fibers is__ beats/min

A

20-40

230
Q

on the ECG, the T wave represents

A

ventricular repolarization

231
Q

on the ECG, the time necessary for the spread of an electrical impulse through the AV node, bundle of His, right and left bundle branches, and purkinje fibers is reflected by the

A

Pr Segment

232
Q

the portion of the ECG tracing between the QRS complex and the T wave is called the

A

ST segment

233
Q

Which of the following is the first positive deflection seen on the ECG after the P wave

A

R wave

234
Q

__ cells are working cells of the heart that contain contractile filaments and form the muscular layer of the atrial walls and the thicker muscular layer of the ventricular walls

A

myocardial

235
Q

__ when the cardiac muscles cell is stimulated, the cell is said to

A

depolarize

236
Q

on the ECG the p wave represents atrial __ and the QRS complex represents ventricular__

A

depolarization, depolarzation

237
Q

the nurse notes that a patients heart monitor shows that every other beat is earlier than expected. has no visable p wave, and has a qrs complex that is wide and bizare in shape. How will the nurse document the rhytm

A

venticular bigeminy

238
Q

when analyzing the rhythm of a patient electrocardiogram (ECG) the health care will need to investigate further upon finding

A

QRS interval of 0.14 seconds

239
Q

a patient has ST segment changes that suggest an acute inferior wall myocardial infarction. Which lead would be best to monitoring the patient

A

II

240
Q

when analyzingan ECG rhythm strip on a patients regular heart rythm the tech counts 30 small boxes from one R wave to the next. the technican calculates the patients heart rate as__

A

50 there are 1500 small blocks in a minute, and the nurse will divivide 1500 into 30

241
Q

the peaked t waves observed on the ECG are most commonly seen in patients with

A

hyperkalemia

242
Q

which of the following correctly reflects examples of ectopic (latent)pacemakers

A

the av junction and ventricles

243
Q

The Pr inversal is considered prolonged if its more than_ seconds in duration

A

0.20

244
Q

in sinus arrhythmia a gradual increasing of the heart rate is usually associated with

A

inspiration

245
Q

the rate of sinus tachycardia__ is beats/min

A

faster than 100

246
Q

an ECG rhythm strip shows a ventricular rate of 46 BPM a regular rhythm, a PR interval of 0.14 seconds, a QRS duration of 0.06 seconds and one upright P wave before QRS. This rhythm is

A

Sinus bradycardia

247
Q

An ECG rhythm strip in a ventricular rate of 128bpm a regular rhythm a pr interval of 0.16 seconds, a QRS duration of 0.8 seconds, and one upright P wave before each QRS. This rhythm is sinus

A

Tachycardia

248
Q

the rate of sinus rhytm is __ beats/min

A

60-to 100

249
Q

which of the following correctly reflects the ECG criterteria a sinus rhythm

A

P waves that look alike and upright in Lead II, one before each QRS

250
Q

the rate of sinus bradycardida__ beats.min

A

slower than 60

251
Q

which of the following correctly describes multifocal atrial tachycardia

A

atrial and ventricular rhythms are irregular

252
Q

The most common type of supraventricular tachycardia (svt) is

A

AV nodal reentrant tachycardida(AVNRT)

253
Q

a wandering atrial pacemaker rhythm with a ventricular rate of 60 to 100 min may also be referred to

A

multiformed atrial rhythm

254
Q

to determine whether the ventricular rhytm on an EKG tracing is regular or irregular compare__ Intervals

A

R to R

255
Q

atrial fibriillation is characterised by

A

an erratic, wavy baseline and irregular ventricular rhythm

256
Q

in a junctional rhythm viewed in lead II, where is the locationof the P wave of the ECG if atrial and venttricular depolarization occur simulatenously

A

During the QRS complex

257
Q

if seen the P wave of a rhythm orginating in the AV junction will appear-___ in lead In

A

inverted

258
Q

the PR interval of second degree AV block

A

is constant with more than 0.20 seconds in duration

259
Q

2:1 AV block is characterized by

A

irregular P to P intervals and regular R to R

260
Q

Second degree AV block type is characterised by__ intervals

A

irregular R to R

261
Q

second degree AV block typoe1 is characterized by __ intervals

A

regular p to p intervals and irregular R to R

262
Q

in third degree AV block

A

there is no PR interval because the atria and ventricles beat independently of each other

263
Q

which leads look adjoining tissue in the anterior region of the left ventricle

A

V2,V3,V4

264
Q

Lead V1 views the

A

septum

265
Q

Lead AvL views the

A

lateral wall of the left ventricle

266
Q

Which of the following leads should be used to view the right

A

V4R

267
Q

lead V3 views the__ wall of the left ventricle

A

anterior

268
Q

Which leads look at adjoining tissue in the inferior region of the left ventricle

A

II,III, aVF

269
Q

lead V5 views the __ wall of the left ventricle

A

lateral

270
Q

the inferior wall of the left ventricle is supplied by the __ coronary artery in most of the population

A

Right

271
Q

where should be the positive electrodes for lead VI be posistioned

A

Right side of the sternum, fourth intercoastal space

272
Q

An ECG machine sensitivity must be calibrated so that a I -mV electrical signal will produce a deflection measuring exactly__ mm tall

A

10

273
Q

Each small box on ECG paper represents

A

0.04 seconds

274
Q

Each large box on ECG paper represents

A

0.20

275
Q

the axes of leads I,II,III form an equilaterial traingle with the heart at the center (einthovens traingle) if the augmented limb leads are added to this configuration and the axes of the six leads moved in a way in wich they bisect each other, the result is

A

Hexaxial reference system

EKG 2 (2 decks)

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