Which of the Following Is/are Major Mechanism(s) That Contribute to the Pulmonary

question 9

Multiple Choice

Which of the following is/are major mechanism(s) that contribute to the pulmonary hypertension commonly seen in a patient with a pulmonary embolism?
1) Decreased cross-section area of the pulmonary vascular system
2) Vasoconstriction induced by alveolar hypoxia
3) Reflexes from the aortic and carotid sinus baroreceptors
4) Vasoconstriction induced by humoral agents

• A) 1
• B) 2, 3
• C) 1, 2, 4
• D) 1, 2, 3, 4

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