# A1C test results - calculating your RBC lifespan **URL:** \ **Category:** New T1/LADA\ **Created:** [April 30, 2018, 4:52pm UTC](https://forum.fudiabetes.org/t/a1c-test-results-calculating-your-rbc-lifespan/3965 "2018-04-30T16:52:03Z")\ **Posts on this page:** 1\ **Showing post:** 7
**Author:** ![Chris](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.fudiabetes.org/chris/32/382_2.png) [@Chris](https://forum.fudiabetes.org/u/Chris)\ **Post date:** [April 30, 2018, 9:22pm UTC](https://forum.fudiabetes.org/t/a1c-test-results-calculating-your-rbc-lifespan/3965/7 "2018-04-30T21:22:15Z")
I have made a few attempts at it. Here is one. Is this the one you were thinking about? > [@Libre CGM vs A1c](https://forum.fudiabetes.org/t/libre-cgm-vs-a1c/3728/3): > > Dean, As @Michel mentions, an office based A1c measurement is a very good measurement of your glycated hemoglobin. Your A1c is excellent, and nothing that in my opinion should concern you. You are well below the area where your risk of complications is increasing rapidly. [see graph below] When a physician tells you that your A1c is a measure of your average glucose reading they are over-simplifying the situation. I think they use this simplification as a way to communicate with … --- _[View the full topic](https://forum.fudiabetes.org/t/a1c-test-results-calculating-your-rbc-lifespan/3965)._