What is recording speed in ECG
Biology
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Answer
Recording speed in an Electrocardiogram (ECG) refers to the rate at which the paper moves through the ECG machine. This speed determines how the electrical events of the heart are displayed over time.
Step-by-step solution
4 stepsThe standard recording speed for ECG paper is 25 mm/second.
At this speed, each small square on the ECG grid (which is 1 mm wide) represents 0.04 seconds (40 milliseconds).
Each large square (made up of 5 small squares) represents 0.20 seconds (200 milliseconds).
A faster speed, such as 50 mm/second, would stretch out the waveform, making it easier to see fine details like subtle arrhythmias or conduction abnormalities.
A slower speed would compress the waveform.
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