Dialysis Technician Practice Exam

In the hemodialysis process, the dialyzer plays a crucial role in purifying the blood of patients with kidney failure. Specifically designed as an artificial kidney, the dialyzer facilitates the removal of waste products and excess fluid from the bloodstream, which is essential for maintaining the body’s chemical balance. Inside the dialyzer, blood flows through a series of hollow fibers that allow waste products, such as urea and creatinine, to transfer from the blood into a dialysis solution, or dialysate. This process effectively cleanses the blood, mimicking the filtering action of healthy kidneys. The design of the dialyzer ensures that the patient's blood remains separated from the dialysis fluid while allowing for the necessary exchange of substances, highlighting its primary function in hemodialysis.