ICD-11 definition : This is an acute condition in which decreased ventilation (hypoventilation) causes
increased blood carbon dioxide concentration and decreased pH (a condition generally
called acidosis). Carbon dioxide is produced continuously as the body's cells respire,
and this CO2 will accumulate rapidly if the lungs do not adequately expel it through
alveolar ventilation. Alveolar hypoventilation thus leads to an increased PaCO2 (called
hypercapnia). The increase in PaCO2 in turn decreases the HCO3-/PaCO2 ratio and decreases
pH.;
This is an acute condition in which decreased ventilation (hypoventilation) causes
increased blood carbon dioxide concentration and decreased pH (a condition generally
called acidosis). Carbon dioxide is produced continuously as the body's cells respire,
and this CO2 will accumulate rapidly if the lungs do not adequately expel it through
alveolar ventilation. Alveolar hypoventilation thus leads to an increased PaCO2 (called
hypercapnia). The increase in PaCO2 in turn decreases the HCO3-/PaCO2 ratio and decreases
pH.