Waveform Measurements
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Each small square is equal to ______ when measuring the voltage of a waveform. | .1 mv
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| The T wave signifies _______ on the electrocardiogram. | ventricular repolarization
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| When measuring time each small square is equal to _______ in duration. | .04 seconds
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| The QRS complex normally measures between ____ and _____ seconds long. | .06 to .12
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| The formula for calculating the heart is ________ | 1500 / # of boxes
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| Atrial depolarization is represented by the _______ on the electrocardiogram. | P Wave
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| One large square on the EKG paper represents_____ | .20 seconds
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| The ST segment usually appears_______ | flat
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| Two large squares on the EKG paper represents _____ millimeters or _____ milivolt. | 10 or 1.0
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| QRS Complex | ventricular depolarization
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| The axis of a normal heart is between ____ and ____ degrees. | 0 and +90 degrees
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| Ventricular contraction occurs during the ______ on the EKG | ST Segment
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| Normal duration of the QT interval | .32 to .44
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| PR interval represents | depolarization of the atria and the delay of the inpulse at the AV Node.
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| Duration of the PR Interval | .12 to .20 seconds
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| Normal Sinus Rhythm | 60 and 100 bpm
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| V1 | Fourth intercostal space at the right margin of the sternum
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| V2 | Fourth intercostal space at the left margin of the sternum
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| V3 | Midway between V2 and V4
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| V4 | Fifth intercostal space at the left midclavicular line
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| V5 | level of V4 but on left anterior line
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| V6 | level of V4 but on midaxillary line
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Created by:
bossy777
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