Grey’s Anatomy Season 7 Episode 7 (Grey’s Anatomy s07e07) with title “That’s Me Trying” aired on Thursday, November 4th 2010 at 09:00 pm via ABC Network.
Here is summary for Grey’s Anatomy Season 7 Episode 7 :

The residents are pushed to their limits when Owen puts them through a rigorous trauma certification drill; meanwhile, Cristina is also tested when left alone to monitor a very ill lung transplant patient