Question

acute renal failure in pregnancy complicated by abruptio placentae is caused by:
acute tubulointerstitial nephritis
renal papillary necrosis
necrotizing glomerulonephritis
bilateral renal cortical necrosis
crescentic glomerulonephritis

Explanation:

In cases of abruptio placentae (placental abruption) during pregnancy, the associated acute renal failure is typically caused by bilateral renal cortical necrosis. This occurs due to ischemia from hypovolemia, disseminated intravascular coagulation (DIC), and vasospasm, which damage the renal cortex. The other options (acute tubulointerstitial nephritis, renal papillary necrosis, necrotizing glomerulonephritis, crescentic glomerulonephritis) are not the typical cause in this context.

Answer:

D. bilateral renal cortical necrosis