Exam-style question
Try this first
Why is amplification used in ECG measurement?.
- A.To increase the size of the electrical signals from the heart
- B.To reduce noise in the electrical signals
- C.To enhance the clarity of the ECG waveform
- D.To decrease the time taken for signal processing
Model answer
What a good answer should say
- To increase the size of the electrical signals from the heart
Explanation
Why this works
Amplification is used to increase the size of the electrical signals from the heart, which are typically very weak. This mechanism allows the signals to be more easily detected and analyzed, leading to clearer ECG readings that can accurately reflect the heart's activity, thus improving diagnosis and monitoring.
Common mistake
No common mistake is linked to this question yet.