the clip and the light that you are talking about is a pulse oximeter and this machine measure the hemoglobin that is bind to oxygen in your blood. The hemoglobin is what transport oxygen to your cells and tissues. If you have a low hemoglobin level but they're all bind to oxygen the reading will be good but your tissues and cells are not receiving enough oxygen. That can be one of the reason you're feeling you don't get enough air.
Otherwise it could be because of congestion in your lungs even if you're getting enough oxygen.
well, you don't breath carbon dioxide, you breath oxygen
Why would you become short of breath at high altitudes if air at those levels still contains 21% oxygen
It makes it hard to breath and, if severe, lowers oxygen levels.
No, mold does not require oxygen to grow. Mold spores can thrive in environments with low oxygen levels.
Plants have a nearly opposite respiration with that of humans. They harness the energetic photons of sunlight along with the ability to fix carbon dioxide (CO2) in separate reactions to create carbohydrates (R-6-P) as the product and, to answer your question, Oxygen as the respiratory "waste" product. This fact is why you often hear people say that we need trees and plants to breathe and sustain oxygen levels at their optimal P02 levels of around 25-28%
Oxygen levels are typically measured using a device called a pulse oximeter, which clips onto a person's finger and uses light to determine the amount of oxygen in the blood. Another method is through blood gas analysis, where a blood sample is taken and analyzed in a lab to determine the oxygen levels.
Shortness of breath, COPD, asthma, and low oxygen levels to the body requiring oxygen therapy.
If the patient blood levels fall (maybe due to hemorrhage), the oxygen that the RBCs are carrying is lost with the blood. The person will feel 'out of breath'.
A good way to measure dissolved oxygen levels in the human body would be to use a pulse oximeter. It is a little device that you can put on a finger or toe to get the measurement.
When you hold your breath, CO2 levels will increase in your body, which, simply put, makes your body oxygen-starved. This, then, will trigger a reaction that will attempt to get as much oxygen throughout the body as possible, and this is done by increasing the heart rate.
Oxygen levels in the blood are typically measured using a device called a pulse oximeter. This device clips onto a person's finger and uses light to measure the level of oxygen saturation in the blood. The reading is expressed as a percentage, with normal levels typically ranging from 95-100%.
At higher elevations, the air pressure is lower, which means there is less oxygen available per breath. This can lead to lower oxygen levels in the blood, making it harder for the body to supply enough oxygen to tissues and organs, resulting in shortness of breath. The body may also compensate by increasing the respiratory rate to try to get more oxygen.