An independent doctor, approved by the family of Jahi McMath and the hospital, will perform a brain examination on Monday.
A judge ruled in the family's favor on Friday, rejecting the argument from Children's Hospital that the facility had no duty to continue medical intervention.
The 13-year-old will be kept on a ventilator at least through the weekend following the judge's ruling.
ABC7's Dan Ashley spoke to Jahi's mother for a one-on-one interview you'll see only on ABC7 News.
"But I'm grateful just to have those three more days with her," said Nailah Winkfield. "But it is hard because I feel like I'm just on borrowed time with my daughter. I will fight for my daughter until I can't fight anymore and I don't know when a mother loses a fight for her children."
To watch the entire interview, click here.
Jahi suffered a heart attack following tonsil surgery and was pronounced brain dead.
The 13-year-old's family tells ABC7 News they will hold a march and rally on Monday at 9:30 a.m. outside Children's Hospital. The family says their gathering will be peaceful and lawful.
The next day, the court and family-approved doctor will present the findings of his examination to the judge.
On Saturday, Jahi's mother Nailah Winkfield released an open letter penned about her daughter. To read the entire letter, click here.