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Cardiac-Vascular Nursing Exam Prep II

Category - AACN Cardiac Vascular Nursing Practice Test

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Which of the following correctly represents the pathophysiologic mechanism behind development of cor pulmonale?
  1. Pulmonary vasodilatation, compromise of vascular bed due to lung disease such as emphysema and interstitial lung disease, thinning of blood due to anticoagulants and primary pulmonary hypertension
  2. Pulmonary vasoconstriction, compromise of vascular bed due to lung disease such as emphysema and interstitial lung disease, increased blood viscosity due to diseases like sickle cell anemia and primary pulmonary hypertension
  3. Pulmonary vasodilatation, compromise of vascular bed due to lung disease such as emphysema and interstitial lung disease, valvular heart disease and primary pulmonary hypertension
  4. Pulmonary vasoconstriction, compromise of vascular bed due to vascular diseases, increased blood viscosity due to diseases like sickle cell anemia and primary pulmonary hypertension
Explanation
Answer- B - The pathophysiologic mechanism behind development of cor pulmonale include pulmonary vasoconstriction, compromise of vascular bed due to lung disease such as emphysema and interstitial lung disease, increased blood viscosity due to diseases like sickle cell anemia and primary pulmonary hypertension. Cor pulmonale is an enlargement of the right ventricle of the heart as a response to increased resistance or high blood pressure in the lungs.
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