Which of the following are causes of acute kidney injury
Which of the following are causes of acute kidney injury (AKI)? (Select all that apply)
A. Severe dehydration
B. Nephrotoxic medications
C. Urinary tract obstruction
D. Chronic hypertension
Answer: A, B, C
Explanation: AKI has prerenal (dehydration), intrinsic (nephrotoxins), and postrenal (obstruction) causes; chronic hypertension causes CKD, not acute AKI.

