If benign prostatic hyperplasia (BPH) is present, the patient is most likely at risk for which class of acute renal failure?

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Multiple Choice

If benign prostatic hyperplasia (BPH) is present, the patient is most likely at risk for which class of acute renal failure?

The main idea is that kidney injury due to obstruction of urine flow is postrenal AKI. Benign prostatic hyperplasia can block the bladder outlet, so urine cannot exit properly. This upstream obstruction raises pressure in the urinary tract and impairs kidney function, fitting the postrenal category. In contrast, prerenal AKI comes from reduced blood flow to the kidneys (like dehydration or shock), and intrinsic (intrarenal) AKI results from damage within the kidney itself (such as ATN or glomerulonephritis). If the obstruction is relieved early, kidney function may recover, whereas prolonged obstruction can lead to permanent injury.

The main idea is that kidney injury due to obstruction of urine flow is postrenal AKI. Benign prostatic hyperplasia can block the bladder outlet, so urine cannot exit properly. This upstream obstruction raises pressure in the urinary tract and impairs kidney function, fitting the postrenal category. In contrast, prerenal AKI comes from reduced blood flow to the kidneys (like dehydration or shock), and intrinsic (intrarenal) AKI results from damage within the kidney itself (such as ATN or glomerulonephritis). If the obstruction is relieved early, kidney function may recover, whereas prolonged obstruction can lead to permanent injury.

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