RRB Junior Engineer / DMS / CMA 2019 · Question 19 of 3719

Which of these helps to diagnose a heart problem?

Life Sciences - Human Body

Aa. BCG
Bb. EEG
Cc. ECGCorrect
Dd. ECT

Answer: C. c. ECG

Explanation

• Electrocardiogram (ECG) monitors the heartbeat of a person. • It measures the changing electric impulse with contraction and expansion of the heart. • ECGs obtain the analog signals and then convert them into digital ones. • Small sticky sensors (electrodes) are attached to the chest of patients and their heartbeat is measured. • William Einthoven is credited with the invention of ECG in 1895 and was also honored with Nobel prize in 1924.

Source: RRB JE 2019 CBT-1 (24-May-2019 Shift-2) — ixambee compilation with answer key and solutions · reliable-secondary

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