Question

Blood glucose level measurement device uses a biosensor works on the principle of _____________

(a) electromechanical

(b) electrochemical

(c) electrothermal

(d) electroresistive

I had been asked this question in an interview for job.

This question is from Transmission of Analog Physiological Signals Over Telephone topic in section Biomedical Telemetry of Biomedical Instrumentation

Answer 1

Correct option is (b) electrochemical

Best explanation: The biosensor in this instrument relies upon enzymes that recognise and catalyze reactions of glucose with the generation of redox – active species that are detected electrochemically. Home blood glucose detection sensor works on the principle of electrochemical.