Deck 36: Cardiac Procedures

Question 1

Which of the following best describes what the P wave represents?

A)Atrial depolarization
B)Ventricular depolarization  
C)Atrial repolarization
D)Ventricular repolarization

Answer 1

Atrial depolarization

Question 2

? Which of the following best describes how the augmented leads are recorded?

A)Before the bipolar
B)After the precordial leads  
C)After the bipolar leads

Answer 2

After the bipolar leads

Question 3

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

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

Answer 3

To determine whether the machine is set and working properly  

Question 4

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

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

Question 5

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

A)They are disposable. 
B)The electrodes contain an electrolyte gel. 
C)There are only 6 to 7 electrodes used. 
D)The electrodes are applied in different locations than in a resting ECG.

Question 6

Which of the following indicates ventricular depolarization?

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

Question 7

Where is the lead for a V6 reading placed?

A)Fourth intercostals space at right sternal margin  
B)Fifth intercostals space at midclavicular line  
C)Horizontal to V4 at left anterior axillary line  
D)Horizontal to V4 at left midaxillary line

Question 8

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

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 9

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

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

Question 10

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

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

Question 11

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

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

Question 12

Which of the following is the lead that records electrical activity between the right arm and the left leg?

A)Lead I
B)AVL  
C)AVF
D)Lead II  
E)Lead III

Question 13

Why are electrodes applied to the fleshy part of a limb?

A)To reduce AC interference
B)To correct wandering baseline  
C)To prevent interrupted baseline
D)To minimize the artifacts

Question 14

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

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

Question 15

Where does deoxygenated blood enter the heart?

A)Pulmonary artery
B)Pulmonary vein  
C)Right atrium
D)Right ventricle

Question 16

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

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 17

What is the next step in the ECG procedure after the electropad sensors are removed?

A)Assist the patient as needed.
B)Turn the machine off. 
C)Unplug the machine.
D)Give the tracing to the physician.

Question 18

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

A)RA
B)RL  
C)LA
D)LL

Question 19

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

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 20

Which of the following best describes an electrocardiogram?

A)Performed on every adult patient over 40  
B)Visualization of the heart's activity  
C)Graphic representation of the heart's electrical activity  
D)Only indicated when patients have symptoms

Question 21

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

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

Question 22

Which of the following is a reason to have an EKG?

A)Detects myocardial ischemia  
B)Estimates damage from MI  
C)Evaluates arrhythmia  
D)Assesses cardiac medication on the heart  
E)All the above

Question 23

What is the term used to refer to an ECG reading that is within normal limits?

A)Sinus arrhythmia
B)Baseline recording  
C)Normal sinus rhythm
D)Atrial fibrillation

Question 24

During a coronary balloon angioplasty, a catheter with a deflated balloon is inserted into which of the following arteries?

A)Carotid
B)Brachial  
C)Femoral
D)Radial

Question 25

Which of the following would NOT need to be recorded in the Holter monitor patient activity diary?

A)Eating meals
B)Medications taken  
C)Bowel movements
D)Times of sleep  
E)Name of nearest relative

Question 26

Which of the following is a device placed on the skin that picks up electrical impulses given off by the heart?

A)Lead wire
B)Amplifier  
C)Electrode
D)Electrolyte

Question 27

Which of the following is NOT a characteristic of a three-channel or multichannel electrocardiogram?

A)The tracing is recorded on 8 1/2 by 11-inch paper. 
B)Three or more leads are recorded at one time. 
C)It fits into a patient's chart with no cutting or mounting. 
D)Speed is an advantage. 
E)It records one lead at a time

Question 28

If the electrocardiograph is properly standardized, the standardization mark should be how high?

A)5 mm
B)10 mm  
C)15 mm
D)20 mm

Question 29

Why would the medical assistant place the power cord pointing away from the patient and not allow the cable to go underneath the table?

A)Causes interrupted baseline
B)Helps reduce AC interference  
C)Helps reduce wandering baseline
D)Causes somatic tremor artifacts

Question 30

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

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

Question 31

Which of the following occurs if the metal tip of a lead wire becomes detached from an electrode?

A)Alternating current artifacts
B)Muscle artifacts  
C)Wandering baseline
D)Interrupted baseline

Question 32

Why should an electrolyte be used when running an ECG?

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 33

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

A)5
B)7  
C)10
D)12

Question 34

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

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

Question 35

Which of the following best describes the contraction of the cardiac cells from the electrical discharge?

A)Repolarization
B)Negative deflection  
C)Depolarization
D)Polarization

Question 36

What does the cardiac cycle represent?

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

Question 37

Which of the following is true about a treadmill stress test?

A)It is an invasive ECG tracing. 
B)It is taken under uncontrolled conditions. 
C)The stress test is monitored closely by the provider. 
D)Electrodes are applied to the arms, chest, and legs.

Question 38

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

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 39

Which of the following describes when the myocardial cells recovers electrically?

A)Repolarization
B)Negative deflection  
C)Depolarization
D)Polarization

Question 40

Which of the following best describes electrocardiograph paper?

A)Light sensitive
B)Chemically sensitive  
C)Heat sensitive
D)Moisture sensitive

Question 41

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

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

Question 42

Which of the following types of atrial arrhythmia is characterized by extremely rapid incomplete contractions?

A)Premature atrial contraction
B)Paroxysmal atrial tachycardia  
C)Atrial fibrillation
D)Sinus bradycardia

Question 43

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?

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

Question 44

Which of the following type of ventricular arrhythmia is considered a common disturbance in the rhythm?

A)Premature ventricular contraction
B)Ventricular fibrillation  
C)Ventricular tachycardia
D)None of the above