Author Question: What IV infusion has been found to improve exercise capacity, hemodynamic variables, and sur-vival ... (Read 34 times)

P68T · **on:** Jul 16, 2018

What IV infusion has been found to improve exercise capacity, hemodynamic variables, and sur-vival in patients with severe IPAH?

a. Bosentan
b. Epoprostenol
c. Methylprednisolone
d. Sildenafil

Question 2

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 cardiopulmo-nary reserve.
b. Low alveolar oxygen causes vasocon-striction.
c. Many patients have central cyanosis.
d. These patients are especially susceptible to tissue hypoxia.

braelync · **Reply #1 on:** Jul 16, 2018

Answer to Question 1

ANS: B
Epoprostenol delivered by continuous intravenous infusion, improves exercise capacity, hemo-dynamic variables, and survival in IPAH patients and is the treatment of choice for severely ill patients.

Answer to Question 2

ANS: B
Supplemental oxygen should be used to maintain oxygen saturation greater than 90, especially because hypoxemia is a major cause of pulmonary vasoconstriction.