my dad has been in icu for copd exaberation for 10 days now, hes havinv trouble waking up from sedation. hes on olanzapine and fluxitine but they never gave him his medicine altho they had info that he takes it regularly!! they put him back on it yesterday and said it should help him wake upnow. pls help and give info im feeling lost, how much longer till he wakes up??