Dialysis Technician Practice Exam

At what stage of kidney disease does a patient typically begin dialysis?

1. Stage 1

2. Stage 2

3. Stage 3

4. Stage 4

The correct answer is: Stage 4

Dialysis is typically initiated at Stage 4 of kidney disease, which is characterized by severe reduction in kidney function, usually indicated by a glomerular filtration rate (GFR) of 15 to 29 mL/min. At this stage, the kidneys are considered to be functioning at a critically low level, with the risk of developing complications such as uremia, which refers to the accumulation of waste products in the blood due to inadequate kidney function. Patients may begin dialysis to manage symptoms, maintain their health, and prepare for possible kidney transplantation. Starting dialysis at this stage allows for better management of fluid and electrolyte balance, aiding in the patient's overall well-being. In contrast, stages 1 to 3 involve varying degrees of kidney impairment where the kidneys still have significant function, and dialysis is generally not necessary unless specific complications arise.