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The Medical Assistant Study Set 2

Medicine

Quiz 42 :

Principles of Electrocardiography

Quiz 42 :

Principles of Electrocardiography

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The __________ control(s) the rate of heart contraction by initiating contractions 60 to 100 times a minute.
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B

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The _________ reflects the time between the end of ventricular contraction and the beginning of ventricular recovery.
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C

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A monitor that a patient wears for 24 hours is called a(n)
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B

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________ is the relaxation phase of the heart.
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Which deflection from the baseline represents the repolarization of the ventricles?
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Bradycardia is defined as
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The __________ leads use two limbs to record the heart's electrical activity.
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Systole is defined as
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In a standard 12-lead ECG, the measurement of current that the heart muscle produces between the right arm electrode and the left arm electrode is known as the
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Which statement is true about ECG paper?
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To check the standardization of the ECG machine, the medical assistant depresses the standardization button. The stylus should deflect how many millimeters?
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Which statement is true about lead II?
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Tachycardia is defined as
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What part of the ECG complex represents atrial depolarization?
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Which statement is true about NSR?
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If the ECG recording appears as a series of irregular, jagged peaks, the medical assistant should
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Preparation of a patient for an ECG includes
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On an ECG recording, five 5-mm boxes are seen between the R waves. What is the patient's heart rate per minute?
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If the ECG recording appears with the baseline rising and falling, the medical assistant should
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If the ECG recording appears as a series of small, uniform spikes in the baseline, the medical assistant should
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