The Body Oxygen Level Test (BOLT) represents a short scientific assessment, which measures your breathing efficiency together with carbon dioxide (CO₂) tolerance. The test delivers basic but useful ...

The blood in your body delivers oxygen to all of your cells. When you breathe and draw fresh oxygen into your lungs, red blood cells bind with the oxygen and carry it through your bloodstream. On a ...

This archived news story is available only for your personal, non-commercial use. Information in the story may be outdated or superseded by additional information. Reading or replaying the story in ...

Advances in electronics, sensor technology and wireless communications are converging to open up some exciting possibilities in monitoring the human body from the inside, from sensors that track the ...

Medically reviewed by Sanja Jelic, MD Key Takeaways A PaO2 test measures oxygen pressure in arterial blood to help guide treatment for respiratory issues. This test is part of an arterial blood gas ...

Oxygen therapy can help people with certain health conditions, such as emphysema, sleep apnea, or severe COVID-19, get enough oxygen to stay well and function. Oxygen therapy may be a temporary ...

The blood oxygen sensor featured in Apple Watch Series 6 and 7 is “not intended for medical use,” Apple says. That seems odd, considering that low blood oxygen is a serious medical condition. If the ...