title: [Gas acidosis and alkalosis].
abstract: Arterial concentration of CO2 (PaCO2) is dependent of pulmonary excretion. When this excretion is lower than cellular production respiratory acid-basis occurs: rise in PaCO2 which lowers pH and produces secondary increases in bicarbonate (HCO3-) plasma concentration. Respiratory alkalosis, generated by a CO2 pulmonary excretion greater than metabolic production is characterized by a fall in PaCO2 which raises pH and induces secondary reduction of plasmatic HCO3- concentration. Attention to the possibility of serious hypoxemia, cause or consequence, should always be regarded and treated in respiratory acid-base disorders.
authors.affiliation: Service de médecine interne et réanimation médicale, hôpital Antoine-Béclère, Clamart.
authors.forename: F
authors.initials: F
authors.lastname: Brivet
mesh_terms: D000142:Acidosis, Respiratory / Q000503:physiopathology* / Q000628:therapy; D000472:Alkalosis, Respiratory / Q000503:physiopathology* / Q000628:therapy; D002245:Carbon Dioxide / Q000097:blood; D006801:Humans; D006863:Hydrogen-Ion Concentration; D010313:Partial Pressure
chemical_list: D002245:Carbon Dioxide
vernacular_title: Acidose et alcalose gazeuses.