After effective cardiopulmonary resuscitation, the effectiveness of cardiopulmonary resuscitation should be assessed by the following points: 1. Observe the patient’s pupils, such as gradually narrowing from dilated, indicating that the compression is effective; 2. When checking the carotid arteries, it will be found that the patient’s carotid arteries have pulsation; 3. The patient who has been cyanotic gradually reduces the cyanosis through the cardiac pulse compression; 4. Observe the patient’s chest in the rise and fall, or from the patient’s nose place to feel the recovery of the patient’s voluntary respiration. All of these aspects are helpful in determining whether external cardiac compression and cardiopulmonary resuscitation are effective. By confirming the above indications, it can be judged that CPR is effective. That is, in the first stage of basic life support, we have achieved the effect, after completing these items, we should immediately transport the patient to the nearest medical institution, and then continue treatment after resuscitation, the most important thing is the success of brain resuscitation.