Final answer:
When the COHb level is more than 10%, it indicates a high concentration of carbon monoxide bound to hemoglobin. Treatment involves providing high amounts of oxygen to displace the carbon monoxide and restore oxygen-carrying capacity.
Step-by-step explanation:
When the carboxyhemoglobin (COHb) level is greater than 10%, it means that there is a high concentration of carbon monoxide (CO) bound to the hemoglobin in the blood. This can lead to tissue hypoxia, as the oxygen-carrying capacity of hemoglobin is reduced. The treatment for CO poisoning involves providing the patient with high amounts of oxygen continuously at high pressure. This helps to displace the CO from the hemoglobin and allows for the formation of oxygen-bound hemoglobin.