MEDICAL
HEART AND PERICARDIUM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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One square on the graph paper (vertical line) represents:
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0.04 seconds
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0.04 mV
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0.1 mV
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0.1 seconds
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Explanation:
Detailed explanation-1: -Electrocardiogram paper measures: Vertical: 1 mm = 0.1 mV. Horizontal: 1 mm = 0.04 s. These are the values used on a standard EKG.
Detailed explanation-2: -Vertically, the ECG graph measures the height (amplitude) of a given wave or deflection. The standard calibration is 10 mm (10 small boxes), equal to 1 mV. On occasion, particularly when the waveforms are small, double standard is used (20 mm equals 1 mv).
Detailed explanation-3: -Horizontal axis of theECG graph paper represents time in milliseconds (ms) while the vertical axis represents amplitude or voltage in millivolts (mV).
There is 1 question to complete.