As "Grey's Anatomy" season 10 looms towards its finale, spoilers on Sandra Oh and Cristina's emotional farewell have surfaced.

Currently, Sandra Oh is filming her final scenes with the "Grey's Anatomy" cast, and her Twitter updates are emotional to say the least.

Can't believe it's my last week here already

— Sandra Oh (@IamSandraOh) April 21, 2014

Shooting my last scene with Justin now. — Sandra Oh (@IamSandraOh) April 21, 2014

slowly wrapping out my trailer! pic.twitter.com/BImL900wVa

— Sandra Oh (@IamSandraOh) April 21, 2014

But before then, spoilers confirm that Cristina has a tough decision to make on "Grey's Anatomy" season 10, involving a heart and two candidates.

Does this foreshadow a tough decision for Cristina's own heart when it comes to Owen and the highly anticipated return of Preston Burke?

In addition, spoilers also confirm that the "Grey's Anatomy" season 10 finale will involve a terrorist incident, but TVLine affirms that none of the three exiting doctors (Cristina, Leah, Shane) will be part of the bloodbath.

Reportedly, the event serves as a backdrop to Cristina's exit, although how Leah and Shane will make their exits remains to be seen.