generate questions: Uptake of O
2 from the air is the essential purpose of respiration, so oxygen supplementation is used in medicine. Treatment not only increases oxygen levels in the patient's blood, but has the secondary effect of decreasing resistance to blood flow in many types of diseased lungs, easing work load on the heart. Oxygen therapy is used to treat emphysema, pneumonia, some heart disorders (congestive heart failure), some disorders that cause increased pulmonary artery pressure, and any disease that impairs the body's ability to take up and use gaseous oxygen.
What medical treatment is used to benefit patients with hearth and lung disorders? {sep_token} By decreasing resistance to blood flow in the lungs, what organ's workload  can be eased? {sep_token} What medical treatment is used to increase oxygen uptake in a patient? {sep_token} In what process is the uptake from oxygen necessary? {sep_token} What does  oxygen therapy promote the body to take up?