That sucks..... we'll all think good thoughts for you and her....
If there is anything I can help with let me know.
BBBD's (bit by big dogs) can be tough. There can ba alot of trauma and things can go well and then go to hell in a handbasket real fast or they do great...often hard to call at first. Sounds like the biggest concern is the throat injury....is her trachea lacerated or just the skin ??? Sounds like she has a pneumothorax....air inside the chest that allows the lung to collapse...those usualy do pretty good...BTW, technically she has 2 lungs with a total of 7 lobes
Often its all the damage to the muscle etc that can be unpredictable and that make the body do wierd things...infection, bleeding issues, septic shock etc etc....