A 35-year-old woman comes to the physician for a one-week history of dark urine and worsening periorbital edema. She has diffuse joint pain. Physical examination shows an oral ulcer. Laboratory studies show: creatinine 3.2 mg/dL; BUN 54 mg/dL. Urine dipstick shows 2+ blood and 2+ protein. Platelets are 50,000/μL. Which of the following is most likely to be seen in this patient?
Diffuse proliferative glomerulonephritis
Lipoid nephrosis
Membranous glomerulonephritis
Membranoproliferative glomerulonephritis
Proliferative glomerulonephritis
