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10 Questions

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Electrocardiograms

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Questions and Answers

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?

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?

S-T segment

T wave

QRS complex

P wave (correct)

What does the QRS complex represent on an ECG?

Depolarization of the ventricles Signup and view all the answers

Which interval on an ECG is measured from the start of the P wave to the start of the Q wave?

P-R interval Signup and view all the answers

What does the T wave represent on an ECG?

Repolarization of the ventricles Signup and view all the answers

Which interval on an ECG is measured from the start of the Q wave to the end of the S wave?

QRS interval Signup and view all the answers

What does the S-T segment represent on an ECG?

Depolarization of the ventricles Signup and view all the answers

Which interval on an ECG is measured from the end of the S segment to the start of the T wave?

S-T segment Signup and view all the answers

Which interval on an ECG is measured from the start to end of the T wave?

T interval Signup and view all the answers

Electrocardiograms

Choose a study mode

Podcast

Questions and Answers

Which instrument is used to measure and graph the electrical impulses generated in the heart?

What do changes in voltage observed on an ECG represent?

Which of the following represents the depolarization of the atria on an ECG?

What does the QRS complex represent on an ECG?

Which interval on an ECG is measured from the start of the P wave to the start of the Q wave?

What does the T wave represent on an ECG?

Which interval on an ECG is measured from the start of the Q wave to the end of the S wave?

What does the S-T segment represent on an ECG?

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 start to end of the T wave?

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