ECG

What does electrocardiography measure?

• The heart's electrical activity

• Right atrial function

• Left ventricular activity

• Cardiac output

A standard electrocardiogram (ECG) produces how many views of a patient's electrical activity?

• 12

• 8

• 10

• 6

How is a standard electrocardiogram (ECG) complex labeled?

• P-RST-U

• P-QRS-T

• L-MNO-Q

• P-QRJ-T

What does the P wave represent on an electrocardiogram waveform?

• Atrial depolarization

• Ventricular depolarization

• Atrial repolarization

• Ventricular repolarization

What does the QRS complex represent on an electrocardiogram waveform?

• Atrial repolarization

• Ventricular depolarization

• Atrial depolarization

• Ventricular repolarization

What does the T wave represent on an electrocardiogram waveform?

• Ventricular depolarization

• Atrial depolarization

• Ventricular repolarization

• Atrial repolarization

Ventricular depolarization and repolarization are represented by which electrocardiogram

measure?

• QRS complex

• T wave

• PR interval

• QT interval

When preparing to perform an electrocardiogram (ECG), in what position should you place the

patient?

• Supine

• Prone

• Sims' position

• Side-lying

What is the correct placement of the V electrode when performing an electrocardiogram?

• At the midaxillary line, level with V4

• Fourth intercostal space at the right sternal border

• Fifth intercostal space at the right sternal border

• Fifth intercostal space at the anterior axillary line

What's the correct placement of the V electrode when performing an electrocardiogram?

• Fifth intercostal space at the midaxillary line

• Halfway between V and V5

• Fifth intercostal space at the midclavicular line

• Fourth intercostal space at the right border of the sternum