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Questions and Answers
Which instrument is used to measure and graph the electrical impulses generated in the heart?
Which instrument is used to measure and graph the electrical impulses generated in the heart?
- Stethoscope
- Ultrasound machine
- MRI scanner
- Electrocardiogram (correct)
What do changes in voltage observed on an ECG represent?
What do changes in voltage observed on an ECG represent?
- Changes in blood pressure
- Changes in body temperature
- Changes in heart rate
- Changes in heart contractions (correct)
Which of the following represents the depolarization of the atria on an ECG?
Which of the following represents the depolarization of the atria on an ECG?
- S-T segment
- T wave
- QRS complex
- P wave (correct)
What does the QRS complex represent on an ECG?
What does the QRS complex represent on an ECG?
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Which interval on an ECG is measured from the start of the P wave to the start of the Q wave?
Which interval on an ECG is measured from the start of the P wave to the start of the Q wave?
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What does the T wave represent on an ECG?
What does the T wave represent on an ECG?
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Which interval on an ECG is measured from the start of the Q wave to the end of the S wave?
Which interval on an ECG is measured from the start of the Q wave to the end of the S wave?
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What does the S-T segment represent on an ECG?
What does the S-T segment represent on an ECG?
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Which interval on an ECG is measured from the end of the S segment to the start of the T wave?
Which interval on an ECG is measured from the end of the S segment to the start of the T wave?
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Which interval on an ECG is measured from the start to end of the T wave?
Which interval on an ECG is measured from the start to end of the T wave?
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