[Answer] A 3 year old unresponsive apneic child is brought to the ED. EMS personnel report that the child became unresponsive as they arrived at the hospital. The child is receiving CPR with bag-mask ventilation. The rhythm shown here is VFIB. A biphasic manual defibrilator is present. You quickly use the length-based resuscitation tape to estimate the approximate weight as 15 kg. Which therapy is most appropriate for this child at this time?