A nurse is caring for two clients with impaired oxygenation. Client has pneumonia with thick mucus in the alveoli. Client 2 has a pulmonary embolism affecting the right lung. After administering oxygen therapy. Client T's oxygen saturation improves, but Client 2's oxygen saturation remains low. Why does Client 1 respond better to oxygen therapy than Client 2?

Client 1's (pneumonia) airways are completely blocked, so oxygen cannot get through, while Client 2's (pulmonary embolism) airways are open

Client 2 (pulmonary embolism) has too much blood flow and not enough at while Client 1 (pneumonia) has too much air and not enough blood flow

Client 1 (pneumonia) has only partially blocked airways while Client 2 (pulmonary embolism) has a blockage of blood flow, preventing the blood from picking up oxygen

Client 1 (pneumonia) has a higher cardiac output then Client 2 (pulmonary embolism), leading to increased thoracic pressure and peripheral vascular resistance