29th April 2024

A 68-year-old woman presents to the emergency department with a two-day history of nausea, vomiting, and decreased urine output.

A 68-year-old woman presents to the emergency department with a two-day history of nausea, vomiting, and decreased urine output. She has a history of hypertension, type 2 diabetes, and chronic kidney disease. Her current medications include lisinopril, metformin, and a diuretic. On examination, she appears dehydrated, and her blood pressure is 90/60 mmHg. Laboratory tests reveal increased serum creatinine and blood urea nitrogen levels.

Which is the most likely diagnosis?