Which procedure can be used to treat renal failure by removing toxins from the blood?

Dialysis filters wastes and excess fluid from the blood when the kidneys cannot do so adequately. Therefore, the procedure used to remove toxins from the blood is dialysis. An adrenalectomy removes an adrenal gland, and a kidney biopsy is a diagnostic procedure rather than a treatment that filters the blood.

AI-written and checked against the verified answer.