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Quiz 46: Electrocardiography and Pulmonary Function Testing

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Which of the following can prevent a wandering baseline?
(Multiple Choice)
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How do you determine the heart rate from a regular ECG tracing?
(Multiple Choice)
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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?
(Multiple Choice)
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Which of the following measures the patient's response to a constant or increasing workload?
(Multiple Choice)
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AC interference can be prevented by ____.
(Multiple Choice)
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Which of the following delays the electrical impulse to give time for the atria to complete contraction and the ventricles to fill?
(Multiple Choice)
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Gillian is a cheerful, active teenager who is having an ECG as part of a physical required by her school to participate in cheerleading activities. You explain that she needs to remain very still while you record the ECG. You begin the tracing, as shown in the picture. Although Gillian remains still, when she sees the look on your face, she asks, "What's wrong?" What abnormality is visible in lead V6, and what is your best choice of action?
(Multiple Choice)
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If a patient is uncomfortable lying flat on the examining table for an ECG test, he can be placed in the ____.
(Multiple Choice)
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The urgent care center where you work is being remodeled, and the room usually used for obtaining ECGs is currently unavailable. The ECG equipment has been moved around the corner to the room next to the X-ray room. When you begin your first patient ECG of the day, the tracing looks as shown in the figure. What problem is present and how can you fix it?
(Multiple Choice)
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You are attempting to record an ECG for Mr. Potter, a 72-year-old patient who has Parkinson's disease. Knowing this, you automatically place the limb electrodes close to the trunk. However, the tracing looks as shown in the picture. What artifact is present and what can you do to fix it?
(Multiple Choice)
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The arrhythmia in which P waves cannot be identified because of rapid multiple electrical signals that fire from areas of the atria other than the SA node is ____.
(Multiple Choice)
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The ____ send(s) out electrical impulses to initiate depolarization.
(Multiple Choice)
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What is the arrhythmia pictured here?
(Multiple Choice)
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Which of these arrhythmias is due to a heartbeat originating in the ventricles that occurs early in the cycle and is followed by a pause before the next cycle?
(Multiple Choice)
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Which of the following is a correct statement about the stylus temperature control?
(Multiple Choice)
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What is the arrhythmia pictured here?
(Multiple Choice)
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How do you prevent somatic interference on an ECG tracing?
(Multiple Choice)
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Electrodes for limb leads should be attached to ____.
(Multiple Choice)
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The arrhythmia pictured here is ____.
(Multiple Choice)
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Which of these is a life-threatening arrhythmia that results in no cardiac output?
(Multiple Choice)
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