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Where are the electrodes placed for recording foetal electrocardiogram?

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in Biomedical Instrumentation by (76.6k points)
Where are the electrodes placed for recording foetal electrocardiogram?

(a) heart

(b) abdomen

(c) brain

(d) veins

The question was posed to me by my school principal while I was bunking the class.

Enquiry is from Ambulatory Monitoring Instruments in chapter Arrhythmia and Ambulatory Monitoring Instruments of Biomedical Instrumentation

1 Answer

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Correct answer is (b) abdomen

Easy explanation: Foetal electrocardiogram is recorded by suitably placing the electrodes on the mother’s abdomen and recording the combined maternal and foetal ECG. The maximum amplitude of FECG (R wave) recorded during pregnancy is about 100 to 300 mV. This magnitude is much smaller than in the typical adult ECG which is about 1 mV in the standard lead connection.

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