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16 Cards in this Set
- Front
- Back
The vertical lines on the ekg graph measure
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time
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Which of the following best describe the elements of a single cardiac cycle
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p wave, pr segment, pr interval, qrs complex and t wave
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the ekg machine will produce a upright deflection on the graph paper if the flow of electricity is toward the __ electrode
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positive
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no impulse can cause depolariztion during the __ peroid
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refractory
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The pr interval begins at the first sign of the pwave and ends at the first sign of the next deflection which is called the
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QRS complex
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A series of cardiac cycles makes up a
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EKG rhythm strip
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On EKG graph paper the distance in time between two light vertical lines or across one small square is
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.04
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The deflection above and below the isoelectric line are
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waves
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On EKG graph paper the time between to heavy vertical lines is five small boxes or
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.20
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When an ekg machine is turned on but not connected to the pt the stylus will produce a straight line called the ___ line
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Isoelectric
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A strong impulse can cause premature abnormal discharge during the ___ refractory peroid
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relative
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Which of the following is not a normal qrs mearsurment
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.20
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The pr interval reflects all __ activity
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Atrial
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The short peroid of electrical inactivity between the p wave and the start of the QRS complex is called the ___ segment
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PR
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The horizontal lines on the ekg graph paper measures
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Voltage
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The distance between two tic marks is
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3 secs
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