The Nurse Is Explaining to a Client Diagnosed with Cystic

The nurse is explaining to a client diagnosed with cystic fibrosis the goals of the oxygen therapy being prescribed. Which is a therapeutic effect of oxygen administration?

A) It reverses high and low oxygen concentrations in the blood.
B) It increases the work of the respiratory system, allowing it to work more efficiently.
C) It decreases the heart's work in pumping blood and eases the heart's load.
D) It affects ventilatory drive control mechanisms and increases the stimulus to breathe.