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HEAL 214 > Chapter 36 > Flashcards

Chapter 36 Flashcards

1
Q

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

a. Precordial leads	
b. Bipolar leads	
c. Augmented leads	
d. Chest leads
A

Bipolar leads

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2
Q

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

a. Beginning application of electrodes on the patient’s left side	
b. Positioning the limb electrodes on the fleshy part of the upper arms and lower legs	
c. Instructing the patient to lie still and not to talk during the procedure	
d. Positioning the machine so that the power cord runs under the patient table
A

d. Positioning the machine so that the power cord runs under the patient table

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3
Q

Which of the following indicates ventricular depolarization?

a. PR segment	
b. QT interval	
c. ST segment	
d. QRS complex	
e. P wave
A

d. QRS complex

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4
Q

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

a. Patient cough	
b. Patient sneeze	
c. AC interference	
d. DC interference
A

c. AC interference

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5
Q

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

a. A-V node to Purkinje fibers	
b. A-V node to bundle of His	
c. S-A node to left bundle branches	
d. S-A node to Purkinje fibers
A

d. S-A node to Purkinje fibers

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6
Q

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

a. Normal sinus rhythm	
b. Atrial fibrillation	
c. Sinus arrhythmia	
d. Baseline recording
A

a. Normal sinus rhythm

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7
Q

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

a. Alternating current	
b. Somatic tremor	
c. Voluntary muscle movement	
d. Wandering baseline
A

d. Wandering baseline

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8
Q

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

a. Assist the patient as needed.	
b. Give the tracing to the physician.	
c. Unplug the machine.	
d. Turn the machine off.
A

a. Assist the patient as needed.

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9
Q

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. Laser angioplasty	
b. Coronary angioplasty	
c. Atherectomy	
d. Coronary artery bypass
A

d. Coronary artery bypass

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10
Q

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

a. ICD	
b. CMR	
c. Pacemaker	
d. ECG	
e. CCT
A

a. ICD

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11
Q

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
A

b. Helps reduce AC interference

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12
Q

What does the cardiac cycle represent?

a. Relaxation of the entire heart	
b. Contraction of the atria	
c. One heartbeat	
d. Contraction of the ventricles
A

c. One heartbeat

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13
Q

Which of the following best describes electrocardiograph paper?

a. Light sensitive	
b. Heat sensitive	
c. Moisture sensitive	
d. Chemically sensitive
A

b. Heat sensitive

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14
Q

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

a. RA	
b. RL	
c. LL	
d. LA
A

b. RL

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15
Q

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

a. To set machine timing	
b. To check for artifacts	
c. To determine the correct placement of chest electrodes	
d. To determine whether the machine is set and working properly
A

d. To determine whether the machine is set and working properly

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16
Q

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

a. Electrocardiogram	
b. Coronary artery bypass	
c. Echocardiogram	
d. Thallium stress test
A

d. Thallium stress test

17
Q

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

a. Ventricular depolarization	
b. Ventricular repolarization	
c. Atrial depolarization	
d. Atrial repolarization
A

c. Atrial depolarization

18
Q

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

a. None of the above	
b. Premature ventricular contraction	
c. Ventricular tachycardia	
d. Ventricular fibrillation
A

b. Premature ventricular contraction

19
Q

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

a. It is often seen in patients using depressants.	
b. Ventricular tachycardia occurs in healthy people.	
c. Ventricular fibrillation is life threatening.	
d. It has a cardiac cycle occurring early.
A

c. Ventricular fibrillation is life threatening.

20
Q

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

a. Electrode	
b. Lead wire	
c. Electrolyte	
d. Amplifier
A

a. Electrode

21
Q

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

a. The electrodes contain an electrolyte gel.	
b. They are disposable.	
c. The electrodes are applied in different locations than in a resting ECG.	
d. There are only 6 to 7 electrodes used.
A

d. There are only 6 to 7 electrodes used.

22
Q

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

a. After the bipolar leads	
b. After the precordial leads	
c. Before the bipolar
A

a. After the bipolar leads

23
Q

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

a. Transmission of microorganisms is minimized.	
b. Artifacts are reduced.	
c. Wandering baseline is reduced.	
d. Patient is able to sleep.
A

b. Artifacts are reduced.

24
Q

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

a. To reduce AC interference	
b. To prevent interrupted baseline	
c. To minimize the artifacts	
d. To correct wandering baseline
A

c. To minimize the artifacts

25
Q

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

a. Sinus bradycardia	
b. Atrial fibrillation	
c. Premature atrial contraction	
d. Paroxysmal atrial tachycardia
A

b. Atrial fibrillation

26
Q

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. Keep a diary of the times of all symptomatic activities and emotions.	
c. Depress the event marker every hour on the half hour.	
d. Remove the recorder from its case.
A

b. Keep a diary of the times of all symptomatic activities and emotions.

27
Q

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
A

e. All the above

28
Q

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

a. Electrodes are applied to the arms, chest, and legs.	
b. It is taken under uncontrolled conditions.	
c. It is an invasive ECG tracing.	
d. The stress test is monitored closely by the provider.
A

d. The stress test is monitored closely by the provider.

29
Q

Where is the lead for a V6 reading placed?

a. Horizontal to V4 at left midaxillary line	
b. Horizontal to V4 at left anterior axillary line	
c. Fifth intercostals space at midclavicular line	
d. Fourth intercostals space at right sternal margin
A

a. Horizontal to V4 at left midaxillary line

30
Q

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

a. Bowel movements	
b. Times of sleep	
c. Medications taken	
d. Eating meals	
e. Name of nearest relative
A

e. Name of nearest relative

HEAL 214 (8 decks)

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