A long-term treatment for uremia is:

A kidney transplant is considered a long-term treatment option for uremia because it directly addresses the underlying issue of kidney failure, which leads to the accumulation of waste products in the blood, known as uremia. By replacing the failing kidneys with a healthy one from a donor, the body is able to resume normal function, effectively filtering waste and maintaining the balance of fluids and electrolytes. This option not only alleviates the symptoms of uremia but also significantly improves the patient's quality of life and long-term health outcomes.

The other treatment options do not provide a long-term solution for uremia. Radiation is typically used for treating cancer, antibiotics are used to combat bacterial infections, and blood transfusions may be necessary in certain acute situations but do not address the underlying kidney dysfunction that causes uremia. Therefore, the kidney transplant stands out as the most effective long-term treatment strategy for this condition.