Question 1

For infants and small children, where may you have to place lead V3 to prevent crowding of the chest electrodes?

Accepted Answer

A)  On the patient's back
B)  On the right side of the chest
C)  In the same location by overlapping the electrodes
D)  Parallel with V2E) B) and C)
F) B) and D)

Question 2

You should place the limb electrodes before the chest electrodes because:

Accepted Answer

A)  the ECG will not run at all without the limb leads attached.
B)  they are closest to you and easiest to reach.
C)  the limb leads rarely require a skin prep or cleansing.
D)  placement of the chest electrodes depends on these leads.E) B) and C)
F) A) and D)

Question 3

You are trying to perform an ECG on an infant, but the infant is scared and is crying hysterically. The parents have tried to calm him, but without success. What is your best course of action?

Accepted Answer

A)  Wait until the infant falls asleep
B)  Ask the parents to restrain the infant so that you can place the electrodes
C)  Inform the parents that the ECG cannot be done at this time
D)  Ask a coworker to hold the infant while you place the electrodesE) None of the above
F) A) and C)

Question 4

When applying the chest leads, you will place the V6 lead:

Accepted Answer

A)  in line with V4 on the midaxillary line.
B)  at the fourth ICS, right sternal border.
C)  at the fifth ICS, left midclavicular line.
D)  at the fourth ICS, left sternal border.E) None of the above
F) B) and C) A

Question 5

Why are lead II or a modified chest lead the preferred leads for continuous cardiac monitoring?

Accepted Answer

A)  The electrodes for these leads can be placed in inconspicuous areas on the patient's chest.
B)  The electrodes for these leads are easiest and fastest to apply.
C)  These leads provide the best ability to view the T wave.
D)  These leads provide the best ability to view the P wave.E) B) and C)
F) A) and B)

Question 6

You have an order to perform an ECG on a 76-year-old woman. You knock on the door to her hospital room, introduce yourself, and explain that you are going to perform an ECG. You explain the procedure, but the woman refuses to allow you to do the ECG. What should you say to the patient?

Accepted Answer

A)  "Will you tell me why you don't wish to have an ECG done?"
B)  "Don't worry; the ECG only takes a few seconds to do."
C)  "Your doctor has ordered this test and it must be done."
D)  "I will have to report you to my supervisor immediately."E) B) and D)
F) None of the above

Question 7

If the ECG was ordered stat, what must be done with the results?

Accepted Answer

A)  Give the results directly and immediately to the physician.
B)  Place the results on the physician's desk.
C)  Place the results at the nursing station.
D)  Fax the ECG to a central database.E) A) and B)
F) A) and C)

Question 8

What type of artifact is shown in the figure?

Accepted Answer

A)  Wandering baseline
B)  Somatic tremor
C)  Alternating current interference
D)  Baseline shiftE) A) and B)
F) A) and C)

Question 9

The patient has a cast on his lower left leg. The limb electrode placement should be:

Accepted Answer

A)  right leg electrode at the lower leg and left leg electrode at the inner thigh.
B)  right leg electrode at the lower leg and left leg electrode on the top of the cast.
C)  at equal levels on the thighs.
D)  the same as if the patient did not have a cast.E) B) and D)
F) A) and B)

Question 10

When properly positioning the chest lead electrodes, you should make sure that the electrode is placed on the ________ of the rib cage.

Accepted Answer

A)  suprasternal notch
B)  midclavicular line
C)  intercostal space
D)  angle of LouisE) A) and B)
F) All of the above

Question 11

What information must be included on the ECG requisition?

Accepted Answer

A)  Signature or initials of the ECG technician
B)  Patient address and phone number
C)  Location and date of recording
D)  Model of the ECG machineE) All of the above
F) A) and C)

Question 12

You are about to record an ECG on a patient who has Parkinson's disease. What measures can you take to prevent somatic tremors from being recorded on the ECG recording?

Accepted Answer

A)  Have the patient put his or her hands, palms down, under the buttocks.
B)  Remove tension from the lead wires.
C)  Apply electrodes securely.
D)  Move the patient's bed away from the wall.E) B) and C)
F) A) and B)

Question 13

Which of the following chest leads are placed on the chest using specific anatomical landmarks?

Accepted Answer

A)  V1, V3, V4, and V6
B)  V1, V4, V5, and V6
C)  V1, V2, V3, V4, and V6
D)  V1, V2, V4, V5, and V6E) C) and D)
F) A) and B)

Question 14

When applying chest leads, you will place the V4 lead:

Accepted Answer

A)  midway between V3 and V5.
B)  at the fourth ICS, right sternal border.
C)  at the fifth ICS, left midclavicular line.
D)  at the fourth ICS, left sternal border.E) C) and D)
F) None of the above

Question 15

You have begun performing an ECG on a patient, and the tracing appears as a flat line. What is the first thing you should do?

Accepted Answer

A)  Call for help because the patient has no heartbeat.
B)  Ask your supervisor for suggestions.
C)  Remain calm and check the patient.
D)  Remove and replace the lead wires and cables.E) B) and C)
F) A) and D)

Question 16

Which of these tasks does not necessarily need to be done before operating the ECG machine?

Accepted Answer

A)  Identify and communicate with the patient.
B)  Prepare the room and equipment.
C)  Attach the electrodes and leads.
D)  Enter the correct ICD-10 code.E) C) and D)
F) B) and C) D

Question 17

Where should you place V7 when you are performing a posterior 12-lead ECG?

Accepted Answer

A)  In a straight line from V6 on the left posterior axillary line
B)  In a straight line from V8 at the left midscapular line
C)  In a straight line from V6 at the left paraspinous line
D)  In a straight line from V9 at the right paraspinous lineE) None of the above
F) C) and D)

Question 18

Which of the following causes AC interference artifact?

Accepted Answer

A)  Voluntary movement, such as talking or chewing gum
B)  Lead wires crossed and not pointed toward the hands and feet
C)  Oil, lotion, dirt, or hair under the electrodes
D)  Involuntary movement due to Parkinson's diseaseE) A) and B)
F) None of the above

Question 19

Which of the following may be a cause of somatic tremor?

Accepted Answer

A)  Contacting the bed rail.
B)  Wireless device in the patient's pocket.
C)  Shivering from being cold.
D)  Power cord is contacting the ECG machine.E) B) and C)
F) B) and D)

Question 20

You are recording an ECG tracing on a female patient who has had a mastectomy. Your responsibilities include:

Accepted Answer

A)  documenting this information on the ECG tracing.
B)  using the other side of the woman's chest.
C)  moving the limb leads to the patient's shoulders and thighs.
D)  placing the electrodes on the patient's back.E) C) and D)
F) A) and D) A

Exam 4: Performing an Ecg

For infants and small children, where may you have to place lead V3 to prevent crowding of the chest electrodes?

Correct AnswerverifiedShow Answer

You should place the limb electrodes before the chest electrodes because:

Correct AnswerverifiedShow Answer

You are trying to perform an ECG on an infant, but the infant is scared and is crying hysterically. The parents have tried to calm him, but without success. What is your best course of action?

Correct AnswerverifiedShow Answer

When applying the chest leads, you will place the V6 lead:

Correct AnswerverifiedA

Why are lead II or a modified chest lead the preferred leads for continuous cardiac monitoring?

Correct AnswerverifiedShow Answer

You have an order to perform an ECG on a 76-year-old woman. You knock on the door to her hospital room, introduce yourself, and explain that you are going to perform an ECG. You explain the procedure, but the woman refuses to allow you to do the ECG. What should you say to the patient?

Correct AnswerverifiedShow Answer

If the ECG was ordered stat, what must be done with the results?

Correct AnswerverifiedShow Answer

What type of artifact is shown in the figure?

Correct AnswerverifiedShow Answer

The patient has a cast on his lower left leg. The limb electrode placement should be:

Correct AnswerverifiedShow Answer

When properly positioning the chest lead electrodes, you should make sure that the electrode is placed on the ________ of the rib cage.

Correct AnswerverifiedShow Answer

What information must be included on the ECG requisition?

Correct AnswerverifiedShow Answer

You are about to record an ECG on a patient who has Parkinson's disease. What measures can you take to prevent somatic tremors from being recorded on the ECG recording?

Correct AnswerverifiedShow Answer

Which of the following chest leads are placed on the chest using specific anatomical landmarks?

Correct AnswerverifiedShow Answer

When applying chest leads, you will place the V4 lead:

Correct AnswerverifiedShow Answer

You have begun performing an ECG on a patient, and the tracing appears as a flat line. What is the first thing you should do?

Correct AnswerverifiedShow Answer

Which of these tasks does not necessarily need to be done before operating the ECG machine?

Correct AnswerverifiedD

Where should you place V7 when you are performing a posterior 12-lead ECG?

Correct AnswerverifiedShow Answer

Which of the following causes AC interference artifact?

Correct AnswerverifiedShow Answer

Which of the following may be a cause of somatic tremor?

Correct AnswerverifiedShow Answer

You are recording an ECG tracing on a female patient who has had a mastectomy. Your responsibilities include:

Correct AnswerverifiedA

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D

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A