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Cards In This Set
| Front | Back |
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An electrocardiogram is a/an?
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Graphic record of the heart's electrical activity
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The electrocardiograph can be used except?
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Determine cardiac output
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_____ positioned on the patient's skin detect the heart's electrical activity.
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Electrodes
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Impulses that travel toward a positive electrode and away from a negative electrode are recorded on the electrocardiogram as _____ deflections.
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Upward
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The lead most commonly used for continuous cardiac monitoring is lead?
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Lead II
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With lead II, the ____ lead wire is the positive electrode.
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LL - left leg
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Bipolar leads?
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Require two electrodes of opposite polarity
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The frontal plane gives us a/an _____ view of the heart's electrical activity.
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Anterior and posterior
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The limb leads are obtained by placing electrodes on the?
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Right arm, left arm, left leg, and right leg
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An EKG printout?
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Provides a more accurate picture of the ST segments than does the oscilloscope
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Each small square on the EKG paper running horizontally represents seconds in duration?
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0.04 seconds
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The larger box on the EKG paper, made up of five small square, represents _____ seconds in duration.
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0.20 seconds
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On the top or bottom of the EKG paper there may be vertical slashes or markings to represent _____ second intervals.
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3
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Each small square on the EKG paper running vertically represents?
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0.1 mV.
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The reference point used to identify the changing electrical amplitude on the EKG is called?
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Isoelectric line
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