Coronary Artery Disease Overview

10 Questions | By Cardtrick | Updated: Mar 21, 2022 | Attempts: 525

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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