I'm not ready to lose her yet..

So, my mom is in the hospital again, and they really dont know what is wrong with her. And when I talk to her, I can really understand her well to find out if there is anything new. There is something wrong with something in her lungs thats causing her to not talk so well, and she barely has a voice.
Well today I talked to her, they were suppose to do a scope thing down in her lungs and it ended up being canceled due to a Code Blue. Well they rescheduled it to Monday. While doing it, they are going to be cutting or scarpping something in her lungs to do some test. The cutting can cause some bleeding around her heart. The doctors said doing this give her a 50% chance in dying. The doctors can make another cut to help releave pressure on her heart if it does cause some bleeding, but she could still die from it.
I'm trying So hard to be strong through this but its so hard. Im not ready to lose her yet. Thats my mom. I know if its her time, I should just let her go, and she would be somewhere much better then here. She wouldnt have to suffer with all of these health problems anymore. I just dont know if I can go on without her around.
This is all kind of making me regret leaving Ohio and coming back to Illinois. She has been in the hospital twice since I have left. Joe and Chris left ealier to go see her. They are all thinking she isnt going to make it. I just dont know what to do.

Please Prey for her.