Induced coma after cardiac arrest.

y son is 26... he is on ventilator- cardiac arrest, pneumonia, seizures, it's been 36 days. They are still reducing his coma inducing meds. He's had moments of somewhat lucidity, unable to move fingers or toes yet, opens eyes on command occasionally, pentobarbital induced, then versed, then prpphol, now phenobarbital and clonopin with 5 other non sedating seizure meds, reacts to pain (sometimes) stares into space. He was down for about 7-10 minutes while in Icu on ventilator support and cpr. He's showing more signs of being awake- still on ventilator support- sometimes, I feel and see the connection and recognition, he cried... sometimes he stares at the ceiling. Anyone out there have any input. I'm living on faith ( as I think he is) waiting for all this medication to work it's way out of his body.... what can I expect???