Was Livia faking it?

Alzeimers disease, it's fairly obvious that she was faking when she 'forgot' who Meadow was, I mean that would be a hell of a coincidence, but in other interactions like with Artie in the hospital it seems legit. I also don't remember if there were any definitive answers/proof from any doctors or about it. To me, her smiling at Tony while being wheeled away is inconclusive too as she may of been plied with drugs and just completely out of it anyway. But it still begs the question 'Was she faking it?'