On its first airing, the Peter Berg-produced Trauma drew just 6.9 million viewers and a 2.3 rating in the key 18-49 category. On the bright side, Trauma did build on its lackluster Heroes lead-in. Also, the reviews were disappointing, a backlash came from the Emergency Medical Services community, and a hefty pricetag made it one of NBC’s most expensive new fall series. It’s been so much on the bubble since its debut that it was declared DOA by blogs (who claimed NBC had decided not to order any more episodes of the medical drama to make room for the return of Chuck to Monday nights next year.) But I’ve learned that NBC has told the show this week the network not only will produce all 13 episodes from its current order but also order more. What helped to earn a pickup? A recent ratings rise.