Question 1

Which of the following best describes Leads I, II, and III?

Accepted Answer

A) Bipolar leads 
B) Chest leads 
C) Augmented leads 
D) Precordial leads 
A) Bipolar leads 
B) Chest leads 
C) Augmented leads 
D) Precordial leads

Question 2

What does the cardiac cycle represent?

Accepted Answer

A) Contraction of the atria 
B) One heartbeat 
C) Relaxation of the entire heart 
D) Contraction of the ventricles 
A) Contraction of the atria 
B) One heartbeat 
C) Relaxation of the entire heart 
D) Contraction of the ventricles

Question 3

Which of the following procedures involves taking a portion of a vein (typically the saphenous) and transplanting it into one or more of the hearts' coronary arteries?

Accepted Answer

A) Atherectomy 
B) Laser angioplasty 
C) Coronary angioplasty 
D) Coronary artery bypass 
A) Atherectomy 
B) Laser angioplasty 
C) Coronary angioplasty 
D) Coronary artery bypass

Question 4

Why should an electrolyte be used when running an ECG?

Accepted Answer

A) The skin is a poor conductor of electricity. 
B) An electrolyte reduces the amount of dryness in the skin. 
C) An electrolyte protects the patient from shocks generated by the electrocardiograph. 
D) An electrolyte amplifies the electrical impulses coming from the heart. 
A) The skin is a poor conductor of electricity. 
B) An electrolyte reduces the amount of dryness in the skin. 
C) An electrolyte protects the patient from shocks generated by the electrocardiograph. 
D) An electrolyte amplifies the electrical impulses coming from the heart.

Question 5

The standard electrocardiogram shows the heart's electrical activity from different angles through "leads." How many leads are recorded?

Accepted Answer

A) 5 
B) 7 
C) 10 
D) 12 
A) 5 
B) 7 
C) 10 
D) 12

Question 6

Which of the following tests requires injecting the patient with a radioactive substance?

Accepted Answer

A) Echocardiogram 
B) Electrocardiogram 
C) Coronary artery bypass 
D) Thallium stress test 
A) Echocardiogram 
B) Electrocardiogram 
C) Coronary artery bypass 
D) Thallium stress test

Question 7

Which of the following indicates ventricular depolarization?

Accepted Answer

A) P wave 
B) PR segment 
C) ST segment 
D) QT interval 
E) QRS complex 
A) P wave 
B) PR segment 
C) ST segment 
D) QT interval 
E) QRS complex

Question 8

Which of the small devices sends a small dose of electricity to jar the heart back into a normal rhythm?

Accepted Answer

A) Pacemaker 
B) ICD 
C) CCT 
D) CMR 
E) ECG 
A) Pacemaker 
B) ICD 
C) CCT 
D) CMR 
E) ECG

Question 9

Which of the following represents an error in technique when running an electrocardiogram?

Accepted Answer

A) Positioning the machine so that the power cord runs under the patient table 
B) Beginning application of electrodes on the patient's left side 
C) Instructing the patient to lie still and not to talk during the procedure 
D) Positioning the limb electrodes on the fleshy part of the upper arms and lower legs 
A) Positioning the machine so that the power cord runs under the patient table 
B) Beginning application of electrodes on the patient's left side 
C) Instructing the patient to lie still and not to talk during the procedure 
D) Positioning the limb electrodes on the fleshy part of the upper arms and lower legs

Question 10

Which of the following is an example of an artifact caused by electrical interference?

Accepted Answer

A) Patient sneeze 
B) Patient cough 
C) AC interference 
D) DC interference 
A) Patient sneeze 
B) Patient cough 
C) AC interference 
D) DC interference

Question 11

Which of the following best describes the electrical conduction system of the heart?

Accepted Answer

A) A-V node to bundle of His 
B) S-A node to left bundle branches 
C) A-V node to Purkinje fibers 
D) S-A node to Purkinje fibers 
A) A-V node to bundle of His 
B) S-A node to left bundle branches 
C) A-V node to Purkinje fibers 
D) S-A node to Purkinje fibers

Question 12

Why should the ECG tracing be performed in a quiet, warm, exam room away from electrical equipment?

Accepted Answer

A) Wandering baseline is reduced. 
B) Patient is able to sleep. 
C) Artifacts are reduced. 
D) Transmission of microorganisms is minimized. 
A) Wandering baseline is reduced. 
B) Patient is able to sleep. 
C) Artifacts are reduced. 
D) Transmission of microorganisms is minimized.

Question 13

Which of the following would NOT result in somatic tremor artifact?

Accepted Answer

A) Patient discomfort 
B) Apprehensive patient 
C) Improper grounding of the ECG machine 
D) Patient coughing or talking 
A) Patient discomfort 
B) Apprehensive patient 
C) Improper grounding of the ECG machine 
D) Patient coughing or talking

Question 14

Which of the following is an important part of the patient education when preparing a patient to wear a Holter monitor?

Accepted Answer

A) Wear it even in the shower for an accurate reading. 
B) Remove the recorder from its case. 
C) Keep a diary of the times of all symptomatic activities and emotions. 
D) Depress the event marker every hour on the half hour. 
A) Wear it even in the shower for an accurate reading. 
B) Remove the recorder from its case. 
C) Keep a diary of the times of all symptomatic activities and emotions. 
D) Depress the event marker every hour on the half hour.

Question 15

What is the name of the body's natural pacemaker?

Accepted Answer

A) Medulla 
B) AV node 
C) SA node 
D) Bundle branches 
A) Medulla 
B) AV node 
C) SA node 
D) Bundle branches

Question 16

Which of the following electrodes is NOT used as part of the recording?

Accepted Answer

A) RA 
B) RL 
C) LA 
D) LL 
A) RA 
B) RL 
C) LA 
D) LL

Question 17

Which of the following is a true statement about ventricular fibrillation?

Accepted Answer

A) Ventricular tachycardia occurs in healthy people. 
B) It is often seen in patients using depressants. 
C) It has a cardiac cycle occurring early. 
D) Ventricular fibrillation is life threatening. 
A) Ventricular tachycardia occurs in healthy people. 
B) It is often seen in patients using depressants. 
C) It has a cardiac cycle occurring early. 
D) Ventricular fibrillation is life threatening.

Question 18

Which of the following artifacts can be caused by poor quality electrolyte gel?

Accepted Answer

A) Voluntary muscle movement 
B) Alternating current 
C) Somatic tremor 
D) Wandering baseline 
A) Voluntary muscle movement 
B) Alternating current 
C) Somatic tremor 
D) Wandering baseline

Question 19

Which of the following best describes the function of standardization of the EKG machine?

Accepted Answer

A) To set machine timing 
B) To determine whether the machine is set and working properly 
C) To check for artifacts 
D) To determine the correct placement of chest electrodes 
A) To set machine timing 
B) To determine whether the machine is set and working properly 
C) To check for artifacts 
D) To determine the correct placement of chest electrodes

Question 20

Which of the following converts cardiac arrhythmia into normal sinus rhythm ?

Accepted Answer

A) Ventricular fibrillation 
B) Cardioversion 
C) Noninvasive Holter monitor 
D) None of the above 
A) Ventricular fibrillation 
B) Cardioversion 
C) Noninvasive Holter monitor 
D) None of the above

Exam 36: Cardiac Procedures

Which of the following best describes Leads I, II, and III?

What does the cardiac cycle represent?

Which of the following procedures involves taking a portion of a vein (typically the saphenous) and transplanting it into one or more of the hearts' coronary arteries?

Why should an electrolyte be used when running an ECG?

The standard electrocardiogram shows the heart's electrical activity from different angles through "leads." How many leads are recorded?

Which of the following tests requires injecting the patient with a radioactive substance?

Which of the following indicates ventricular depolarization?

Which of the small devices sends a small dose of electricity to jar the heart back into a normal rhythm?

Which of the following represents an error in technique when running an electrocardiogram?

Which of the following is an example of an artifact caused by electrical interference?

Which of the following best describes the electrical conduction system of the heart?

Why should the ECG tracing be performed in a quiet, warm, exam room away from electrical equipment?

Which of the following would NOT result in somatic tremor artifact?

Which of the following is an important part of the patient education when preparing a patient to wear a Holter monitor?

What is the name of the body's natural pacemaker?

Which of the following electrodes is NOT used as part of the recording?

Which of the following is a true statement about ventricular fibrillation?

Which of the following artifacts can be caused by poor quality electrolyte gel?

Which of the following best describes the function of standardization of the EKG machine?

Which of the following converts cardiac arrhythmia into normal sinus rhythm ?

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