I was just reading up on this because I also wanted to know when the correct times would be. Studies show that for type 2 diabetes (and I assume CFRD), we're advised to check sugar after 1 hour and then again after 2 hours. After 1 hour, blood sugar should be less than 140. After 2 hours, it should be less than 120.
What's important to discover, however, is when your real spike hits. That's the most dangerous issue for us because it could ultimately lead to all the related problems higher sugar can cause. So it's recommended that we check the first few times, using the same kind of meal (if I remember correctly), after an hour, hour and half, two hours, etc. Some foods make you only peak 3-5 hours later (e.g. pasta). Take note if you're exercising or doing something else to lower your sugar during that testing time. Once you know your peak time (e.g. 65 min after your meal), then you'll know how to check for future meals.
Don't forget that you can't rely on the values you got when you were experiencing a CF exacerbation. Exacerbation and infection and inflammation in your body, as well as a steroid medication, affect your sugar tremendously. So presume your numbers will be different when you're feeling relatively healthy versus when you're under the weather.
Good luck!
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Debbie- CF, hypothyroid, CFRD
