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www.reference.com/world-view/high-co2-levels-blood-mean-6e97f4e5cd329414

High CO2 levels in the blood mean that the body may be experiencing respiratory or metabolic acidosis, conditions in which the blood’s pH level is excessively acidic. High levels of CO2 develop in the blood if the lungs or kidneys are unable remove excess CO2 from the body, states Healthline.

www.reference.com/article/co2-level-blood-mean-8370b973305690fa

Abnormal CO2 levels in the blood may mean that a patient is losing or retaining fluid, according to MedlinePlus. This may imbalance the patient's electrolytes, which are minerals in the body fluids that carry electric charges and help regulate metabolism.

www.reference.com/article/can-having-much-co2-blood-cause-351b62f181c368c

An excess of carbon dioxide causes the blood to become too acidic, a condition known as respiratory acidosis, according to MedlinePlus. Typical symptoms include confusion, fatigue, sleepiness, lethargy and shortness of breath.

www.reference.com/article/causes-high-co2-levels-blood-2d640b4750c96c98

Dehydration and overuse of antacids are among the conditions that cause high carbon dioxide levels in the blood, according to WebMD. High CO2 levels are also caused by vomiting, anorexia, chronic obstructive pulmonary disease, heart disease and pulmonary edema. Conn's syndrome and Cushing's disease

www.reference.com/article/co2-mean-cd8a14af458e6869

CO2 is the molecular formula for carbon dioxide. Each molecule of carbon dioxide has one atom of carbon and two atoms of oxygen. Animals expel carbon dioxide when they breathe.

www.reference.com/world-view/cause-low-co2-blood-220e9c8be9f252cc

Addison's disease, lactic acidosis, kidney disease, diarrhea and ethylene glycol poisoning are causes of low CO2 blood levels, according to MedlinePlus. Seizures, cancer, diabetic ketoacidosis and hyperventilation are also causes, claims Healthline.

www.reference.com/article/definition-co2-ec0ff8963300ce6e

CO2 is the chemical formula for carbon dioxide, which contains one atom of carbon and two atoms of oxygen. It is a heavy, odorless gas formed during respiration and by the decomposition of organic substances. Plants absorb carbon dioxide from the air during the process known as photosynthesis.

www.reference.com/world-view/normal-levels-co2-blood-44e6f1f10d52854c

The normal range of carbon dioxide levels in the blood is 23 to 29 milliequivalents per liter, according to MedlinePlus. Sometimes other units might be used, in which case the normal range is 23 to 30 millimoles per liter, reports WebMD.

www.reference.com/world-view/dangerous-level-co2-blood-ea65d13ea9d49c99

A normal value for a carbon dioxide blood test is between 23 and 29 mEq/L, according to the U.S. National Library of Medicine. The severity of an abnormal test result is dependent on the underlying condition in the patient.

www.reference.com/world-view/symptoms-high-co2-levels-ff679a7eba6c3232

Some symptoms of high levels of carbon dioxide in the blood are drowsiness, inability to concentrate and headache, according to About.com. In more severe cases of high carbon dioxide, also known as hypercapnia, symptoms include flushed skin, dizziness, muscle twitches, increased blood pressure and r