What is the primary purpose of hemodialysis?

The primary purpose of hemodialysis is to remove waste products and excess fluids from the blood. This process is essential for patients with kidney failure or severe kidney dysfunction, as their kidneys are unable to filter blood effectively. Hemodialysis acts as an artificial kidney, performing the vital functions of filtering out toxins, urea, creatinine, and other harmful substances that accumulate in the bloodstream due to impaired kidney function. Additionally, it helps to balance electrolytes and maintain fluid homeostasis in the body.

Other options hint at functions that are not the primary goals of hemodialysis. Maintaining blood pressure may be an aspect of care for patients with kidney disease, but it is not the direct purpose of the dialysis process. Promoting kidney regeneration is not achievable through dialysis; instead, it serves as a treatment for managing the consequences of kidney failure. Enhancing nutrient absorption is unrelated to the function of hemodialysis, as its role focuses more on waste elimination rather than nutrient processing. Thus, the correct answer accurately reflects the fundamental purpose of the hemodialysis procedure.