BONENT Certified Hemodialysis Technologist/Technician (CHT) Practice Exam 2025 - Free Hemodialysis Technician Practice Questions and Study Guide

Question: 1 / 400

A blockage in which anatomical structure can cause postrenal failure?

Urethra

Ureter

A blockage in the ureter can indeed lead to postrenal failure. This is because the ureters are the tubes that transport urine from the kidneys to the bladder. If there is a blockage in one or both ureters, urine cannot flow freely from the kidneys, leading to increased pressure and potential damage to the renal tissue. This impaired drainage can cause hydronephrosis or swelling of the kidneys due to the buildup of urine, which ultimately affects kidney function and may lead to postrenal acute kidney injury.

Understanding the importance of the ureters in urinary function clarifies their role in maintaining kidney health. Any obstruction can disrupt the normal flow of urine, creating conditions that are detrimental to the functioning of the kidneys and leading to postrenal failure.

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Renal artery

Glomerulus

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