Biomedical Equipment Technician (BMET) Practice Exam 2025 – Complete CDC Set A Volume 1

A key feature of a dialysis machine is its ability to remove waste products and excess fluid from the blood. Dialysis is a medical procedure used primarily in patients with kidney failure or those whose kidneys are unable to efficiently filter the blood. During dialysis, the machine takes over the functions of the kidneys by filtering out toxins, such as urea and creatinine, as well as excess salts and fluids, which are then discarded. This process is vital to prevent the build-up of harmful substances in the body, maintaining the patient’s overall health and balance of electrolytes.

While some other options mention important medical functions, they do not pertain to the primary function of a dialysis machine. For instance, providing oxygen, administering medication, and measuring blood glucose levels relate to different medical devices and practices, such as respiratory devices, IV pumps, and glucometers, respectively. Thus, the ability to remove waste products and excess fluid is specifically what defines a dialysis machine and underscores its critical role in renal replacement therapy.