What is the chart speed in cardiotocograph to provide sufficient resolution of the stimulus-response relationship?(a) 1-2 cm / sec(b) 2-3 cm / min(c) 1-2 cm / min(d) 2-3 cm / secThis question was posed to me in an interview for job.Question is from Data Compression Techniques topic in section Arrhythmia and Ambulatory Monitoring Instruments of Biomedical Instrumentation

What is the chart speed in cardiotocograph to provide sufficient resol

1.	What is the chart speed in cardiotocograph to provide sufficient resolution of the stimulus-response relationship?(a) 1-2 cm / sec(b) 2-3 cm / min(c) 1-2 cm / min(d) 2-3 cm / secThis question was posed to me in an interview for job.Question is from Data Compression Techniques topic in section Arrhythmia and Ambulatory Monitoring Instruments of Biomedical Instrumentation
Answer» Correct option is (c) 1-2 cm / min Explanation: Normally, accuracy of measurement of foetal heart RATE may be 2-3% for classification for responses. Sensitivity of 20 BPM /cm of the recording chart allows adequate reading of the recorder FHR. Labour ACTIVITY and FHR traces are usually recorded simultaneously on the same time SCALE. Chart speed of 1-2 cm/min is adequate to provide sufficient resolution of the stimulus-response relationship.

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