Causes
AKI can be caused by disease, crush injury, contrast agents, some antibiotics, and more.
The causes of acute kidney injury are commonly categorized into prerenal, intrinsic, and postrenal.
| Type | UOsm | UNa | FeNa | BUN/Cr |
|---|---|---|---|---|
| Prerenal | >500 | <10 | <1% | >20 |
| Intrinsic | <350 | >20 | >2% | <15 |
| Postrenal | <350 | >40 | >4% | >15 |
Read more about this topic: Acute Kidney Injury