Why Is the Use of Oxygen to Maintain Oxygen Saturations

question 9

Multiple Choice

Why is the use of oxygen to maintain oxygen saturations greater than 90% particularly important in the management of idiopathic pulmonary artery hypertension?

• A) These patients have a low cardiopulmonary reserve.
• B) Low alveolar oxygen causes vasoconstriction.
• C) Many patients have central cyanosis.
• D) These patients are especially susceptible to tissue hypoxia.

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