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What is used for amplification of signal in cardiac monitor?

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in Biomedical Instrumentation by (76.6k points)
What is used for amplification of signal in cardiac monitor?

(a) Piezoelectric device

(b) Transducer

(c) Amplifier

(d) Tape recorder

The question was posed to me in homework.

My enquiry is from Arrhythmias Monitor topic in chapter Arrhythmia and Ambulatory Monitoring Instruments of Biomedical Instrumentation

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The correct choice is (c) Amplifier

To elaborate: ‘Cardioscopes’ and comprise of disposable type pregelled electrodes to pick up ECG signal. Amplifier and a cathode ray tube (CRT) for the amplification and display the ECG which enable direct observation of the ECG waveform.

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