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In two-channel chart recorder, FHR is recorded on a calibrated chart in ________(a) cm/min(b) m/min(c) beats/min(d) pulses/minThis question was addressed to me in an interview for job.This key question is from Ear Oximeter in section Oximeters of Biomedical Instrumentation

Answer»

The correct option is (c) beats/min

For explanation: A two-channel CHART recorder is incorporated in instruments used for MONITORING labour ACTIVITY. One channel records FHR on a calibrated chart in beats per MINUTE (50–210 bpm) while the other channel is used for recording uterine contractions calibrated 0-100 mmHg. The standard chart speed is usually 1 or 2 cm/min.



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