Final answer:
CNAs primarily assist with Activities of Daily Living while under the supervision of a registered nurse, and dialysis technicians specialize in providing dialysis treatments with similar oversight.
Step-by-step explanation:
The primary role of a Certified Nursing Assistant (CNA) is to assist residents with their Activities of Daily Living (ADLs). These responsibilities can vary by facility but often include personal care tasks such as bathing, dressing, and grooming.
CNAs work under the direct supervision of a registered nurse and provide essential support in healthcare settings. In the context of dialysis technicians, their duties are more specialized, focusing on providing dialysis treatments, which include tasks like reviewing patient history, assessing and responding to patient needs before and during treatment, and ensuring procedures are done accurately and with sterile equipment.