Defibrillation during cardiopulmonar resuscitation should be performed:

a) It should be delayed until the patient´s core temperature is over 30ºC:

b) After each shock a 10 – seconds pulse check should be done:

c) Adrenaline must be given after the third shock for refractory VT or VF:

d) It should be done after 2 minutes of good – quality CPR: