객관식
How can somatic interference be prevented when recording an ECG tracing?
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18. The Heart
Electrocardiogram (ECG)
객관식
Which instrument is primarily used to record the electrical activity of the heart during an electrocardiogram (ECG)?
A
Electrocardiograph
B
Spirometer
C
Stethoscope
D
Sphygmomanometer
검증된 단계별 안내1
Step 1: Begin by understanding the purpose of an electrocardiogram (ECG). An ECG is a diagnostic tool used to measure and record the electrical activity of the heart over a period of time.
Step 2: Review the function of each instrument listed in the options:
- Electrocardiograph: A device specifically designed to record the electrical activity of the heart during an ECG.
- Spirometer: Measures lung function and respiratory volumes.
- Stethoscope: Used to listen to internal body sounds, such as heartbeats and lung sounds.
- Sphygmomanometer: Measures blood pressure.
Step 3: Match the purpose of the ECG (recording electrical activity of the heart) with the correct instrument. The electrocardiograph is the instrument that fulfills this purpose.
Step 4: Eliminate the other options based on their functions. Spirometer, stethoscope, and sphygmomanometer do not record electrical activity of the heart; they serve different diagnostic purposes.
Step 5: Conclude that the correct instrument for recording the electrical activity of the heart during an ECG is the electrocardiograph.
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