![]() ![]() Symptoms of early hypercapnia, where arterial carbon dioxide pressure, PaCO 2, is elevated but not extremely so, include flushed skin, full pulse, extrasystoles, muscle twitches, hand flaps, reduced neural activity, and possibly a raised blood pressure. In this situation the hypercapnia can also be accompanied by respiratory acidosis. It can also be an initial effect of administering supplemental oxygen on a patient with sleep apnea. It may also be caused by exposure to environments containing abnormally high concentrations of carbon dioxide (usually due to volcanic or geothermal causes), or by rebreathing exhaled carbon dioxide. Hypercapnia is generally caused by hypoventilation, lung disease, or diminished consciousness. Hypercapnia is the opposite of hypocapnia. Carbon dioxide is a gaseous product of the body's metabolism and is normally expelled through the lungs. Hypercapnia is a condition where there is too much carbon dioxide (CO 2) in the blood. ![]() 4.1 Additional Sources of CO 2 in diving.Synonyms and keywords: Hypercapnea hypercarbia blood carbon dioxide raised Risk calculators and risk factors for HypercapniaĮditor-In-Chief: C. US National Guidelines Clearinghouse on Hypercapniaĭirections to Hospitals Treating Hypercapnia Ongoing Trials on Hypercapnia at Clinical Articles on Hypercapnia in N Eng J Med, Lancet, BMJ
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