title: Altitude and anesthesia.
abstract: The author describes the physiological changes that occur and the anesthetic considerations necessary at increased altitudes and under concomitant low barometric pressure levels, pointing out the differences between the acclimatized and the unacclimatized patient. Drawing from the literature and personal experience, the author explores the altered behavior of respiratory gases and anesthetic agents at increased altitudes.
mesh_terms: D000064:Acclimatization; D000388:Air / Q000032:analysis; D000531:Altitude; D000758:Anesthesia; D001810:Blood Volume; D002628:Chemoreceptor Cells / Q000502:physiology; D006470:Hemorrhage / Q000517:prevention & control; D006801:Humans; D000860:Hypoxia / Q000517:prevention & control; D010100:Oxygen / Q000032:analysis; D010102:Oxygen Inhalation Therapy; D010313:Partial Pressure; D012119:Respiration; D014692:Ventilation-Perfusion Ratio
chemical_list: D010100:Oxygen