First aid measures for carbon dioxide poisoning should firstly detach the patient from the poisoned environment, and then carry out cardiopulmonary resuscitation, including necessary cardiopulmonary resuscitation, and choose relevant medication according to the condition of the respiratory inhibition, pulmonary edema, cerebral edema, etc. of the poisoned person. 1. Carbon dioxide poisoning patients should be quickly detached from the poisoned environment, if it is a closed environment, it should be ventilated as much as possible, if it is a closed environment and there is continuous carbon dioxide discharge, the rescuer should wear oxygen and mask and then enter the scene, and then transfer the patients to the safe area as soon as possible and then carry on the rescue treatment. 2. If the heart stops beating after getting out of the poisoned environment, the patient should be resuscitated according to cardiopulmonary resuscitation immediately. If the vital signs are stable, the patient should be given oxygen to keep the respiratory tract open and bed rest. 3. According to the patient’s condition, give appropriate drugs or other treatment measures: If respiratory restriction or respiratory failure patients given respiratory stimulants, if necessary, to establish an artificial airway mechanical ventilation. If cerebral edema or pulmonary edema occurs after poisoning, diuretics such as furosemide or glucocorticoids such as prednisone can be used for treatment. If carbon dioxide poisoning leads to convulsions, the patient should be sent to the hospital as soon as possible, and should not apply sedative drugs on their own to prevent respiratory depression caused by drug overdose. Symptoms of poisoning should go to the hospital in a timely manner, do not use your own medication, so as not to delay the time of rescue, increase the difficulty of treatment. Should strictly follow the physician’s medical advice, standardized treatment.