Answer:The symptoms of respiratory failure depend on the cause and the levels of oxygen and carbon dioxide in your blood. 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.
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Answer:The symptoms of respiratory failure depend on the cause and the levels of oxygen and carbon dioxide in your blood. 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.
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