Oof, that hit like a truck. Her death carries so much more weight as she does what lot of people do when at the edge of death/close to dying (or at least think they are). Apologise and thank those closest to them.
It has especially heavy impact since she just had a fight but she instantly throws those thoughts away the moment she doesn't think she is going to make it.
But damn, I feel extremely sorry for the parents as well. Nothing more painful than have your child die before you. And hearing them die but be unable to do anything must be horrendous.
The only worse way would be if she never called at all, leaving her mother constantly torn and hating herself over thinking that if she had listened a bit more to her daughter, she would likely be still alive (she likely will still be torn up about it, but the call should mitigate the impact a little bit).
I am fine if the girl recovers and becomes happy-go-lucky after this. Near death experiences often tend to radically change people, I have no doubt actual death experience would do it as well.
One thing I am pretty sure of happening though. She is going to give her 110% to everything she studies for. She doesn't want a repeat of her final moments and she realizes at her final moments point just how much she cared about her parents (her mom especially).