The history is not quite clear. Why did she had to be given ceftriaxone ? Was there urinary tract infection ??
Overall picture suggests of chronic
kidney disease .
Also , there are multiple small gall bladder stone, i recommend you to get the elective cholecystectomy done because multiple stones put her at risk of cholangitis and pancreatitis .
As far as diet goes there is a comprehensive renal diet chart available with dieticians, it includes water restriction upto 2l / day , avoid fruits such as banana, salt restriction etc and all of that has to individualized.
Next Steps
consult nephrology, general surgeon.