Coronary Artery Disease Overview

10 Questions | Total Attempts: 197

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Coronary Artery Disease Overview

This quiz discusses the pathophysiology of coronary artery disease.


Questions and Answers
  • 1. 
    Blood flow is greatest during systole.
    • A. 

      True

    • B. 

      False

  • 2. 
    Which of the following is false regarding oxygen extraction?
    • A. 

      It is greater than 60% at rest

    • B. 

      Reserve oxygen for extraction is limited

    • C. 

      Oxygen saturation is 0% near the right atrium

    • D. 

      Skeletal muscles receive more oxygen during exercise

  • 3. 
    Which of the following is true regarding coronary artery disease?
    • A. 

      Oxygen supply does not equal oxygen demand

    • B. 

      Further dilation of vessels is compromised

    • C. 

      Angina is a hallmark symptom of the disease

    • D. 

      A and C

    • E. 

      All of the above

  • 4. 
    Which of the following is false regarding oxygen supply?
    • A. 

      Resistance to blood flow decreases oxygen supply

    • B. 

      There is no compensation to blood flow if an artery is blocked

    • C. 

      Lower heart rate means greater diastolic filling time

    • D. 

      Regular aerobic exercise can increase perfusion to the heart

  • 5. 
    Beta-blockers ______ heart rate and _______ cardiac contractility
    • A. 

      Increase; Increase

    • B. 

      Increase; Decrease

    • C. 

      Decrease; Increase

    • D. 

      Decrease; Decrease

  • 6. 
    Which of the following is true?
    1. 1. 5% of the cardiac output goes to the heart
    2. 2. The heart has a large blood flow even at rest
    3. 3. As workload on the heart increases, coronary blood flow must increase
    • A. 

      1 only

    • B. 

      3 only

    • C. 

      1 and 2 only

    • D. 

      1, 2, and 3

  • 7. 
    Which of the following correctly describes afterload?
    • A. 

      Pressure work

    • B. 

      Volume work

    • C. 

      Neither

  • 8. 
    Which of the following correctly describes preload?
    • A. 

      Pressure work

    • B. 

      Volume work

    • C. 

      Neither

  • 9. 
    Which of the following treatment strategies can be used for coronary artery disease?
    • A. 

      Behavior modifications

    • B. 

      Pharmacologic interventions

    • C. 

      Surgical inteventions

    • D. 

      All of the above

  • 10. 
    Which of the following is false regarding chronic stable angina?
    • A. 

      It is also called exercise-induced angina

    • B. 

      It may result from an increase in blood flow

    • C. 

      There may be electrocardiogram changes

    • D. 

      All of the above are true statements

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