1) In intensive care units, one of the goals is to get rid of the full intubation as soon as it this feasible, and to avoid re-intubation. “HFO,” high-flow oxygen for respiratory support with a simple nasal cannula, seems to be effective in selected patients.
2) In patients with suspected coronary artery disease, both the exercise stress tests and an imaging of the heart, coronary CTA, can arrive at the correct diagnosis, whether you have coronary artery disease or not. And both methods can be used to estimate your future risk for a heart attack.