Test strips

I have not been testing as often as I use to and noticed today that my test strips are out of date by about a month. How long should I keep using them? Is the date a “best used” date or do they stop working? I have noticed that my morning readings have been higher than normal – could it be the strips?

Thanks John, I will do some testing with the strips.

You can always do a control solution test, and if it is within range, I would use the rest of them.