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Uterine contractions are calibrated in range of ______ in two-channel chart recorder.(a) 0-100 mm Hg(b) 100-200 mm Hg(c) 200-300 mm Hg(d) 300-400 mm HgThe question was asked during an internship interview.I would like to ask this question from Ear Oximeter topic in chapter Oximeters of Biomedical Instrumentation

Answer»

The correct answer is (a) 0-100 mm Hg

The EXPLANATION is: 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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