You have removed your patient's electropad sensors, what is the next step in the ECG procedure?

Offer patient assistance or assist as needed

Which of the following is NOT true about Holter monitor electrodes?

There are only 6-7 electrodes used

Horizontal to V4, left midaxillary line

Normal sinus rhythm refers to

An ECG that is within normal limits

A treadmill stress test

Requires close monitoring and supervision of a physician

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MED 140 Electrocardiography

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A quiz to test knowledge of ECG

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Questions 24

Answers

1
You have removed your patient's electropad sensors, what is the next step in the ECG procedure?
Calibrate the ECG machine
Give the ECG tracing to the provider
Disconnect the machine from power source
Offer patient assistance or assist as needed
2
Leads I, II, III are known as
Limb leads
Augmented leads
Bipolar leads
Precordial leads
3
Of the ventricular arrhythmias, this one is considered common
asystole
Ventricular tachycardia
PVC
Ventricular fibrillation
4
Which best describes ventricular fibrillation?
Occurs in healthy patients
It occurs as the result of a premature atrial contraction
Common in patients who abuse alcohol
It is life threatening
5
Why are electrodes applied to the fleshy part of a limb?
To prevent interrupted baseline
To minimize the artifacts
To reduce AC interference
To correct wandering baseline
6
Where does deoxygenated blood enter the heart?
left atrium
right atrium
left ventricle
right ventricle
7
Which electrode is NOT used as part of an ECG recording?
LA
RA
LL
RL
8
How many leads are recorded on a standard ECG?
10
7
5
12
9
Which is true about ECG paper?
Light resistant
Heat sensitive
Reacts to specific chemicals
Water sensitive
10
Which of the following is NOT true about Holter monitor electrodes?
They are disposable
The electrodes contain an electrolyte gel
The electrodes are applied in different locations than ECG
There are only 6-7 electrodes used
11
Which test requires the patient be given a radioactive substance via IV injection?
Holter monitor
Thallium stress test
Coronary artery bypass graft
Echocardiogram
12
Which type of atrial arrhythmia is characterized by extremely rapid incomplete contractions?
Atrial fibrillation
Premature atrial contraction
Paroxysmal atrial tachycardia
Sinus bradycardia
13
V6 is placed where?
4th intercostals space, margin of the right sternum
4th intercostals space, margin of left sternum
5th intercostals space, midclavicular line
Horizontal to V4, left midaxillary line
14
Name the device that uses a small electrical charge to shock the heart back into normal rhythm
ICD
Pacemaker
ECG
EEG
15
Which structure delivers deoxygenated blood to the lungs?
Pulmonary veins
Inferior Vena Cave
Pulmonary artery
Aorta
16
The cardiac cycle represents
One ventricular contraction
One heartbeat
One atrial contraction
Heart polarization
17
Which of the following indicates ventricular depolarization?
ST segment
P Wave
PR segment
QRS complex
18
This is considered the body's natural pacemaker
Bundle of His
AV node
Purkinje fibers
SA node
19
Contraction of the cardiac cells from the electrical discharge is
Repolarization
Depolarization
Negative deflection
Positive deflection
20
When are aVr, aVl, and aVf recorded?
After the precordial leads
After bipolar leads
Before bipolar leads
21
Normal sinus rhythm refers to
An ECG that is within normal limits
An arrhythmia arising in the sinoatrial node
Premature atrial contractions
A baseline ECG recording
22
Which of the following converts cardiac arrhythmia into normal sinus rhythm ?
Noninvasive Holter monitor
Cardioversion
Ventricular fibrillation
None of the above
23
In CABG surgery, a portion of which vein is transplanted into the heart's coronary arteries?
Posterior tibialis
Popiliteal
Jugular
Saphenous
24
A treadmill stress test
Requires close monitoring and supervision of a physician
Requires sedation
Requires an injection of a radioactive material
Requires the patient take supplemental oxygen during test

MED 140 Electrocardiography Flashcards | StudBud