Question 1

After preparing the ECG machine, you explained the procedure to Mrs. Thomas, connected the electrodes, and began the tracing, as shown in the picture. You rechecked the electrodes and they are all placed correctly. None of the wires are loose. However, you notice that Mrs. Thomas's skin smells fragrant, as though she has used a body lotion recently. Which of the following describes the problem, its possible cause, and the correct solution?

Accepted Answer

A)   Extraneous marks caused by paper clips; remove the paper clips
B)   Somatic interference caused by patient shivering; offer a warm blanket
C)   Wandering baseline caused by lotion on the skin; re-prep the skin with isopropyl alcohol
D)   AC interference caused by nearby equipment; turn equipment off
E)   Flat line caused by crossed wires; reconnect the wires correctlyF) None of the above
G) All of the above

Question 2

Which of the following may result in extraneous marks on the ECG tracing?

Accepted Answer

A)   Improper electrode placement
B)   Detached wire
C)   Use of paper clips
D)   Breathing movement
E)   Electrical interferenceF) B) and D)
G) B) and C)

Question 3

Which of the following is a correct statement about the stylus temperature control?

Accepted Answer

A)   A lower temperature produces a heavier line.
B)   It has no effect on the ECG tracing.
C)   A higher temperature produces a heavier line.
D)   Lower temperatures cause smearing.
E)   A higher temperature produces a thinner line.F) All of the above
G) B) and C)

Question 4

This arrhythmia is ________.

Accepted Answer

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Question 5

Which of these allow you to adjust the position of the stylus?

Accepted Answer

A)   Centering control
B)   Sensitivity control
C)   Marker control
D)   Standardization control
E)   Stylus temperature controlF) A) and E)
G) A) and B)

Question 6

Possible causes for a wandering baseline are ____.

Accepted Answer

A)   the use of paper clips, wet hands, or improper mounting
B)   loose wires or a short circuit in the wires
C)   improper grounding or cardiac arrest
D)   poor skin preparation, dangling wire, or breathing movement
E)   wrong selector switch setting or crossed wiresF) A) and B)
G) A) and E)

Question 7

How do you prevent somatic interference on an ECG tracing?

Accepted Answer

A)   Make sure lead wires follow the contour of the body
B)   Ground the machine
C)   Prepare the skin properly
D)   Remind the patient to lie still and to refrain from talking
E)   Unplug other electrical devices in the roomF) A) and B)
G) A) and D)

Question 8

Which of the following delays the electrical impulse for muscle contraction, giving the atria time to contract completely and fill the ventricles with blood?

Accepted Answer

A)   AV node
B)   SA node
C)   Purkinje fibers
D)   Bundle of His
E)   Bundle branchesF) B) and D)
G) A) and B)

Question 9

In ________ echocardiography, an ultrasound transducer is moved around the patient's chest or abdomen to produce heart images.

Accepted Answer

The answer of In ________ echocardiography, an ultrasound transducer is...

Question 10

Electrical impulses of the cardiac cycle produce a series of waves with peaks and valleys on an electrocardiogram that are called ________.

Accepted Answer

The answer of Electrical impulses of the cardiac cycle produce...

Question 11

Transmission of electrical impulses in the heart begins in the ____.

Accepted Answer

A)   AV node
B)   Purkinje fibers
C)   bundle of His
D)   bundle branches
E)   SA nodeF) B) and D)
G) A) and E)

Question 12

The electrical impulse that initiates a chain reaction resulting in contraction is ________.

Accepted Answer

The answer of The electrical impulse that initiates a chain...

Question 13

An electrocardiography device that includes a small cassette or microchip recorder and records the heart rhythm over a 24-hour period is a(n) ________ monitor.

Accepted Answer

The answer of An electrocardiography device that includes a small...

Question 14

If a lead does not appear on an ECG tracing, what should you do before you repeat the tracing?

Accepted Answer

A)   Re-center the stylus
B)   Set the sensitivity selector to 2
C)   Reconnect the wire
D)   Increase the paper speed to 50 mm per second
E)   Move the ECG table away from the wallF) A) and D)
G) A) and B)

Question 15

Electrodes for limb leads should be attached to ____.

Accepted Answer

A)   a bony area on each limb
B)   a highly vascular area
C)   fleshy portions of the limbs
D)   the wrists and ankles
E)   the knees and elbowsF) A) and C)
G) A) and E)

Question 16

The different views recorded on an electrocardiogram that are produced by the electrical activity of the heart are ____.

Accepted Answer

A)   leads
B)   stylus
C)   electrodes
D)   deflections
E)   probesF) None of the above
G) C) and E)

Question 17

Pulse oximetry can be used to help diagnose ________, in which breathing pauses during sleep.

Accepted Answer

The answer of Pulse oximetry can be used to help...

Question 18

Pulmonary function tests are useful in monitoring ____.

Accepted Answer

A)   myocardial infarction
B)   chronic obstructive pulmonary disease
C)   angina pectoris
D)   arrhythmias
E)   congestive heart failureF) A) and B)
G) A) and E)

Question 19

Which precordial electrode is placed in the fifth intercostal space, where it intersects an imaginary line drawn straight down the middle of the clavicle?

Accepted Answer

A)   V6
B)   V2
C)   V4
D)   V1
E)   V3F) C) and D)
G) C) and E)

Question 20

Which precordial electrode is placed in the fifth intercostal space, directly below the middle of the armpit?

Accepted Answer

A)   V1
B)   V2
C)   V4
D)   V6
E)   V3F) A) and E)
G) A) and B)

Exam 46: Electrocardiography and Pulmonary Function Testing

Which of these allow you to adjust the position of the stylus?

Correct Answer
verified

Which of the following delays the electrical impulse for muscle contraction, giving the atria time to contract completely and fill the ventricles with blood?

Correct Answer
verified

Electrodes for limb leads should be attached to ____.

Correct Answer
verified

If a lead does not appear on an ECG tracing, what should you do before you repeat the tracing?

Correct Answer
verified

Correct Answer
verified

In ________ echocardiography, an ultrasound transducer is moved around the patient's chest or abdomen to produce heart images.

Correct Answer
verified

Which precordial electrode is placed in the fifth intercostal space, directly below the middle of the armpit?

Correct Answer
verified

Pulse oximetry can be used to help diagnose ________, in which breathing pauses during sleep.

Correct Answer
verified

The electrical impulse that initiates a chain reaction resulting in contraction is ________.

Correct Answer
verified

How do you prevent somatic interference on an ECG tracing?

Correct Answer
verified

Electrical impulses of the cardiac cycle produce a series of waves with peaks and valleys on an electrocardiogram that are called ________.

Correct Answer
verified

Which precordial electrode is placed in the fifth intercostal space, where it intersects an imaginary line drawn straight down the middle of the clavicle?

Correct Answer
verified

The different views recorded on an electrocardiogram that are produced by the electrical activity of the heart are ____.

Correct Answer
verified

Possible causes for a wandering baseline are ____.

Correct Answer
verified

Which of the following may result in extraneous marks on the ECG tracing?

Correct Answer
verified

Pulmonary function tests are useful in monitoring ____.

Correct Answer
verified

Which of the following is a correct statement about the stylus temperature control?

Correct Answer
verified

Transmission of electrical impulses in the heart begins in the ____.

Correct Answer
verified

An electrocardiography device that includes a small cassette or microchip recorder and records the heart rhythm over a 24-hour period is a(n) ________ monitor.

Correct Answer
verified

This arrhythmia is ________.

Correct Answer
verified
ventricula...
View Answer

Exam 46: Electrocardiography and Pulmonary Function Testing

Which of these allow you to adjust the position of the stylus?

Correct AnswerverifiedShow Answer

Which of the following delays the electrical impulse for muscle contraction, giving the atria time to contract completely and fill the ventricles with blood?

Correct AnswerverifiedShow Answer

Electrodes for limb leads should be attached to ____.

Correct AnswerverifiedShow Answer

If a lead does not appear on an ECG tracing, what should you do before you repeat the tracing?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

In ________ echocardiography, an ultrasound transducer is moved around the patient's chest or abdomen to produce heart images.

Correct AnswerverifiedShow Answer

Which precordial electrode is placed in the fifth intercostal space, directly below the middle of the armpit?

Correct AnswerverifiedShow Answer

Pulse oximetry can be used to help diagnose ________, in which breathing pauses during sleep.

Correct AnswerverifiedShow Answer

The electrical impulse that initiates a chain reaction resulting in contraction is ________.

Correct AnswerverifiedShow Answer

How do you prevent somatic interference on an ECG tracing?

Correct AnswerverifiedShow Answer

Electrical impulses of the cardiac cycle produce a series of waves with peaks and valleys on an electrocardiogram that are called ________.

Correct AnswerverifiedShow Answer

Which precordial electrode is placed in the fifth intercostal space, where it intersects an imaginary line drawn straight down the middle of the clavicle?

Correct AnswerverifiedShow Answer

The different views recorded on an electrocardiogram that are produced by the electrical activity of the heart are ____.

Correct AnswerverifiedShow Answer

Possible causes for a wandering baseline are ____.

Correct AnswerverifiedShow Answer

Which of the following may result in extraneous marks on the ECG tracing?

Correct AnswerverifiedShow Answer

Pulmonary function tests are useful in monitoring ____.

Correct AnswerverifiedShow Answer

Which of the following is a correct statement about the stylus temperature control?

Correct AnswerverifiedShow Answer

Transmission of electrical impulses in the heart begins in the ____.

Correct AnswerverifiedShow Answer

An electrocardiography device that includes a small cassette or microchip recorder and records the heart rhythm over a 24-hour period is a(n) ________ monitor.

Correct AnswerverifiedShow Answer

This arrhythmia is ________.

Correct Answerverifiedventricula...View AnswerShow Answer

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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verified

Correct Answer
verified

Correct Answer
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verified

Correct Answer
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Correct Answer
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Correct Answer
verified
ventricula...
View Answer