Continuous glucose monitoring is a sensor, which monitors glucose levels continuously throughout the day. In people with diabetes, especially those treated with insulin, this sensor helps guide the amount of treatment (such as insulin) required to maintain glucose within target. In dialysis, the glucose levels and insulin needs can change a lot because of the kidney failure and dialysis treatments. The goal of this observational study is to describe the changes in glucose during and in between dialysis sessions over two weeks by using continuous glucose monitoring. The study will also explore whether there is a relationship between the trend of the glucose and fluid level changes during and in between dialysis treatments. Also, the study will assess whether there is a relationship between glucose levels and several long-term outcomes, such as admissions to the hospital, for up to five years.