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Because you're re-breathing exhaled air - every time you breath the same air in, you're taking in some of the remaining oxygen, and replacing it with exhaled CO2

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Q: Why the blood carbon dioxide levels increased in a person who breath into paper bag or cupped hand during hyperventilation?
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What gas is increased in the air you breath out?

Carbon dioxide.


How does hyperventilation upset the oxygen-carbon dioxide ratio in your blood?

By hyperventilating , or overbreathing, there is a rapid decrease of carbon dioxide in the blood. To regain balance, breath through pursed lips or cover mouth and one nostril until the episode subsides.


How does breathing in a bag helpful during hyperventilation?

Breathing into a bag during hyperventilation allows you to re-inhale carbon dioxide that you just exhaled, which helps to rebalance the levels of oxygen and carbon dioxide in your bloodstream. This can help alleviate symptoms of hyperventilation, like lightheadedness and tingling in the extremities.


What do you breath in?

we breath in oxygen and breath out carbon dioxide.


Are high levels of carbon dioxide bad?

well, you don't breath carbon dioxide, you breath oxygen


Is carbon dioxide useful and why?

yes. plants breath in carbon dioxide and then breath out oxygen for other living creatures. then we breath in that oxygen and breath out more carbon dioxide for the plants. basically, we could not survive without plants.


Which breathing pattern results in decreased levels of carbon dioxide at the cellular level?

Hyperventilation


What is the medical name given to hysterical over breathing?

The name for over breathing is hyperventilation, and could be attributed to panic attacks. Hyperventilation is caused by prolonged and rapid breathing that results in a significant rise in oxygen levels and a decrease in carbon dioxide levels. Hyperventilation can create faintness and tingling in the fingers and toes and in extreme cases can lead to loss of consciousness (fainting) or respiratory alkalosis; a condition bought on by low levels of carbon dioxide and in which the body fluids have excess base (alkali) Hyperventilation can be treated by simply breathing into a paper bag. This will create an increased intake of carbon dioxide and in doing so, level out excess levels of oxygen.


How are plants different than humans?

the Photosynthesi does not allow the ability of a plant cell to prouduce solar energy in carbon dioxide


How does plants get the carbon dioxide?

Plants get carbon dioxide from the air we exhale. We breath out carbon dioxide and plants give us oxygen. So when we breath oxygen the air that we exhale is carbon dioxide that goes to plants.


How do fish breathe in and breathe out?

Yes they do. Its part of the carbon cycle. When plants give off carbon dioxide, animals breath it in, when they die, scavengers eat them then decomposer breaks the dead carcasses back into the basic materials.


Do lions breath in carbon dioxide?

As there is a low level of carbon dioxide in the air that animals (and people) breath, yes every breath taken in breaths in some carbon dioxide.But as carbon dioxide in the blood is transferred to the air in the lungs, increasing the level of carbon dioxide in that air, when they breath out both the carbon dioxide breathed in and the additional carbon dioxide from the blood are breathed out. Thus in balance more carbon dioxide is breathed out than is breathed in.