I cannot stand my grandmother?

My grandmother is a freaking trip to deal with. I have biracial child(black and white) and she refuses to get to know my baby girl who is now two years old. I never thought she was a racist until two years ago when she met my ex-boyfriends. She didn't even come to the hospital to see my baby. So today she comes over to my house and she starts acting very snooty. Whipping her hands when my daughter went to grab her hand. Who is she to act like she is better then me when she was a f@cking drunk when she was raising my mother. I'm sick of this women. So anyway I told her to get her shyt and get the he'll out of my house and I pushed her. So now she is claiming that I pushed her to the ground and now she wants to go to the hospital. My own mother was their to witness this. She is a full of crap! I loved her when I was little but she has turned into someone who I don't know. What should I do about this? She is 57 years old and acts like she is a old women.