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Author Question: What therapy has been proven to improve survival in patients with COPD and pulmonary hyper-tension? ... (Read 61 times)

RYAN BANYAN

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on: Jul 16, 2018
What therapy has been proven to improve survival in patients with COPD and pulmonary hyper-tension?
 
  a. Bronchodilators
  b. Oral vasodilators
  c. Oxygen
  d. Prostanoids

Question 2

What is the most important factor contributing to the onset of pulmonary hypertension in the pa-tient with COPD?
 
  a. Alveolar hypoxia
  b. Compression of pulmonary vasculature
  c. Left ventricular failure
  d. Loss of vascular surface


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babybsemail

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Reply #1 on: Jul 16, 2018
Answer to Question 1

ANS: C
Oxygen therapy is the main treatment that improves survival among patients with COPD and pulmonary hypertension, though smoking cessation and lung volume reduction (in selected indi-viduals) may also confer survival benefits in patients with COPD.

Answer to Question 2

ANS: A
Alveolar hypoxia, because of its potent pulmonary vasoconstrictive effect, is probably the most important factor contributing to pulmonary hypertension in patients with COPD. Sustained alve-olar hypoxia causes pulmonary vasoconstriction and eventually medial hypertrophy, fibrosis of the intima, and narrowing of the lumen of the pulmonary blood vessels.


RYAN BANYAN

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Reply 2 on: Jul 16, 2018
Thanks for the timely response, appreciate it

bitingbit

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Reply 3 on: Yesterday
Excellent

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