What is the critical value for mean pulmonary arterial pressure, ...

[jayhills49]

What is the critical value for mean pulmonary arterial pressure, above which the right ventricle fails and death may ensue?
 
  a. 30 mm Hg
  b. 40 mm Hg
  c. 50 mm Hg
  d. 60 mm Hg

Question 2

What is the most frequent symptom found in patients with confirmed pulmonary emboli?
 
  a. Cough
  b. Dyspnea
  c. Leg swelling
  d. Pleuritic pain

[Eunice618]

Answer to Question 1

ANS: B
When the mean pulmonary arterial pressure increases to greater than 40 mm Hg during an acute first pulmonary embolism, the right ventricle fails, and hemodynamic collapse and death occur.

Answer to Question 2

ANS: B
The most frequent symptom in patients with angiographically confirmed pulmonary embolism is dyspnea.