carbon dioxide Carbon dioxide (CO2 ... Pulse oximeters are electronic devices used to measure the amount of oxygen in your blood. Typically, they clip onto your fingertip and give out a reading.
Scientists are repurposing their research about bacteria-powered biobatteries into a new idea for artificial plants that can feed off carbon dioxide, give off oxygen and even generate a little power.
In the hospital, a more invasive but more accurate test, called blood gas, is used. Blood gas tests measure the amount of atmospheric gases—usually oxygen and carbon dioxide—in the bloodstream by ...