Glucose control isn’t just a buzzword for those on Peritoneal Dialysis (PD); it’s a vital aspect of managing overall health and wellness. For individuals depending on PD, maintaining the right balance of glucose is about more than just avoiding highs and lows—it plays a critical role in preventing complications and ensuring the effectiveness of the dialysis treatment itself. Thus, anything that aids and abets control is a matter of interest to those of us on PD, especially those who are also diabetic. That includes me.
TIR, or Time in Range, recently has come to the forefront in diabetic care and control. Hayden E. Klein writing in the August 3, 2023 edition of AJMC in an article titled “Why Time in Range Matters for Diabetes Care Beyond A1c” found essentially universal support for the use of CGMs (Continuous Glucose Monitors) to monitor TIR.
The American Diabetes Association (Link here) suggests “The time in range method works with your CGM’s data by looking at the amount of time your blood glucose has been in target range and the times you’ve been high (hyperglycemia) or low (hypoglycemia). Time in range is often depicted as a bar graph showing the percentage of time over a specific amount of time when your blood glucose was low, in range, and high. This data is helpful in finding out which types of foods and what activity level causes your blood glucose to rise and fall.
Most people with type 1 and type 2 diabetes should aim for a time in range of at least 70 percent of readings—meaning 70 percent of readings, you should aim for roughly 17 out of 24 hours each day to be in range (not high or low),”
So what does this look like in real life? Using my Samsung S23 Ultra phone and the Libre 3 app I captured the screen of the CGMS’s home screen showing the preset upper and lower glucose readings (the shaded area around the actual glucose reading line), and after hitting the three bars in the upper left corner and under “Reports” selecting “Time in Ranges” obtained the second graphics.
The first graph with a glucose reading of 131 is about 1 1/2 hr after lunch and is accepted as good. All of my glucose readings for the last 24 hours have been within the set limits. The second graph shows for the last seven days 95% of the time I have been within limits. There is no reason this couldn’t be 100% so I have work to do.
The last graph is included just to give the world an idea of what the weather is like here in the Dallas-Fort Worth area where we live. Pecan Plantation is actually some 40 or so miles SW of DFW.