A 38-year-old man is brought to emergency after a motor vehicle accident in which he sustained significant blood loss. Blood pressure is 70/40 on arrival. He is resuscitated and receives multiple packs of RBCs. Twenty-four hours later, he develops oliguria. Serum potassium is elevated. A Coombs’ test is negative. Which of the following is the most diagnosis?
Acute tubular necrosis
ABO incompatibility
Interstitial nephropathy
Pre-renal azotemia
Renal papillary necrosis
