What is the correct joule setting for the 2nd and 3rd shocks of a child in ventricular fibrillation?
a. 2 joules for the 2nd shock and 4 joules for the 3rd shock
b. 4 joules for the 2nd shock and 2 joules for the 3rd shock
c. 1 joule for the 2nd shock and 2 joules for the 3rd shock
d. 2 joules for the 2nd shock and 2 joules for the 3rd shock