The answer to that question is Peroxide.
Atomic number=protons=neutrons or, A-P-E. So, an element like this doesn't exist because protons and electrons have the same number.
The test that the nurse will need to check is the OXYGEN SATURATION TEST.
In an healthy lungs, the oxygen saturation level ranges between 95 and 100%, this means that, when red blood cells pass through the lungs 95 to 100% of them is saturated with oxygen. When a lung disease is present, this percentage will be highly reduced. Thus, the oxygen saturation test gives an indication of how efficient the patient's breathing is
I believe it’s position. Position includes distance, direction, and reference point. Hope this helped! :)
