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Which of the following is a direct method for measuring foetal heart rate?(a) Abdominal foetal electrocardiogram(b) Foetal phonocardiogram(c) Ultrasound technique(d) Foetal ECG with scalp electrodeI got this question in an interview for internship.The doubt is from Exercise Stress Testing topic in section Arrhythmia and Ambulatory Monitoring Instruments of Biomedical Instrumentation

Answer»

The correct answer is (d) Foetal ECG with scalp electrode

The best EXPLANATION: Abdominal foetal electrocardiogram, foetal phonocardiogram and Ultrasound TECHNIQUE are indirect methods of measuring foetal heart rate where as Foetal ECG with scalp electrode is a direct method as in it spiral, clip or SUCTION electrode is ATTACHED to the presenting PART of foetus.



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