PATHOLOGY

Detailed explanation-1: -A low oxygen level in the blood can cause shortness of breath and air hunger (the feeling that you can’t breathe in enough air). Your skin, lips, and fingernails may also have a bluish color. A high carbon dioxide level can cause rapid breathing and confusion.

Detailed explanation-2: -For most people, it’s safe to hold your breath for a minute or two. Doing so for too much longer can decrease oxygen flow to the brain, causing fainting, seizures and brain damage. In the heart, a lack of oxygen can cause abnormalities of rhythm and affect the pumping action of the heart.

Detailed explanation-3: -Respiratory failure occurs when the amount of oxygen that moves from your lungs into your blood stream is insufficient and does not allow your heart, brain and other organs to function normally.

Detailed explanation-4: -If your lungs are not getting enough oxygen or they are getting too much carbon dioxide in the blood for any reason, this is respiratory failure.