Problem: A 4-year-old girl, Jane, is brought to the emergency department by her parents following 3 days of vomiting, diarrhea, and decreased appetite. Jane's mother says she has tried to keep her hydrated using water and electrolyte replacement drinks. The mother reports that the Jane's urine output has decreased and she is worried about dehydration. Laboratory workup shows a serum creatinine (SCr) level of 1.2 mg/dL. Review of the patient's medical record shows that previous SCr levels ranged from 0.7 to 0.9 mg/dL. How would this SCr be assessed based on the KDIGO criteria? Need Professional Help? A. No acute kidney injury (AKI) B. Stage 1 AKI C. Stage 2 AKI D. Stage 3 AKI