Why do COPD patients retain carbon dioxide?

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COPD can cause the lungs to not work efficiently by either blocking the airways, or lack of surface area in the lungs. When the lungs cannot expel the CO2, it causes the patient to retain it. Doctors call these patients CO2 retainers. Overtime this retainer of CO2 begins to affect their pH level in the blood.

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Also, why do patients with COPD have elevated carbon dioxide levels?

As COPD advances, these patients cannot maintain a normal respiratory exchange. COPD patients have a reduced ability to exhale the carbon dioxide adequately which leads to hypercapnia. In COPD patients this effect is blunted as the chemoreceptors develop tolerance to chronically elevated arterial carbon dioxide level.

Also, why do you not give oxygen to COPD patients? COPD damages the air sacs in the lungs and interferes with this process. If the damage reaches a critical point, a person may develop hypoxia. Hypoxia occurs when the blood does not deliver enough oxygen to the air sacs in the lungs. A person’s body can adapt to cope with lower oxygen levels than are usual.

Similarly, it is asked, why does the body retain co2?

Causes. CO2 is a gas that is produced as a normal byproduct of your body’s energy production. This gas diffuses into your bloodstream so that it can be exhaled from your lungs. In a healthy person, the typical respiratory rate and depth adequately exhale CO2 from the body.

What happens when your carbon dioxide levels are too high?

Hypercapnia, or hypercarbia, is when you have too much carbon dioxide (CO2) in your bloodstream. It usually happens as a result of hypoventilation, or not being able to breathe properly and get oxygen into your lungs. Your body can then resume normal breathing and get more oxygen into the blood.


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