ACLS Certification - Official Site | Powered by CPR.com
ACLS Certification - Official Site Contact Us | 1-800-448-0734 | Log in |

Chapter 2: Electrocardiography: The Basics – Quiz

Chapter 2: Electrocardiography: The Basics – Quiz

  1. Select the best response from the answer choices following each question.

    1. How long is a normal QRS interval?

    • 1.
    • 2.
    • 3.
    • 4.
  2. 2. When an impulse generated from the heart moves away from the ECG lead, what effect does this have on the ECG tracing?

    • 1.
    • 2.
    • 3.
    • 4.
  3. 3. The R-R interval in a standard ECG spans 15 small squares. What is the heart rate of this patient?

    • 1.
    • 2.
    • 3.
    • 4.
  4. 4. Which element of the ECG tracing represents ventricular depolarization?

    • 1.
    • 2.
    • 3.
    • 4.
  5. 5. When measuring the electrocardiogram, one small square represents 40 milliseconds. Given this information, the speed of the electrocardiogram when it records impulses is:

    • 1.
    • 2.
    • 3.
    • 4.