Correlation between end-tidal carbon dioxide tension and arterial carbon dioxide pressure in traumatic patients

Objective To investigate the relationship between end-tidal carbon dioxide tension (PetCO 2) and arterial carbon dioxide pressure (PaCO 2) in traumatic patients. Methods PetCO 2 and PaCO 2 were measured in 18 patients undergoing selective operation (Group Ⅰ) and in 36 undergoing emergency operation. All the patients were under general anesthesia. The traumatic patients with bleeding less than 25% were used as Group Ⅱ and those with bleeding over...