According to the Adult In-Hospital Cardiac Chain of Survival after immediately starting the emergency response system, you should immediately start a cardiopulmonary resuscitation with an emphasis on chest compressions.
Cardiopulmonary resuscitation (CPR) is the set of measures that involve chest compressions and aim to prevent or reverse the premature death of patients with absent or severely compromised respiratory and circulatory functions.
Cardiopulmonary resuscitation is performed with the tenar region of one of the rescuer's hands, without placing the fingers on the ribs. This technique requires the victim to be on a hard surface. The rescuer must be well above the victim and keep his / her arms straight during compression.
