- Messages
- 286
- Type of diabetes
- Type 1
- Treatment type
- Insulin
A few nights ago I got home from work and tested my blood and it was 20.5. This really surprised me as I couldn't think what I had done wrong that day .I decided to wash my hands again etc check again just to make sure it wasn't a false reading. This time it came out at 17.9. So obviously I was high but the difference was nearly 3mmol between the 2 readings.
I have 2 blood testing machines so decided to do a 3rd test using the other and this one was 21.1. So this was an even bigger difference I have repeated his test a few times and often get at least 2mmol difference with tests done consecutively.
I wanted to know if people were aware of this because this frightens me if my readings are, say 5 or 6, yet in reality I may be about to have a severe hypo. It makes a bit of a mockery of trying to carb count and adjust ratios if these differences are there in all machines. The margin for error is huge. 1 of my machines is only about 18 months old so I don't think that has a fault in it.
I have 2 blood testing machines so decided to do a 3rd test using the other and this one was 21.1. So this was an even bigger difference I have repeated his test a few times and often get at least 2mmol difference with tests done consecutively.
I wanted to know if people were aware of this because this frightens me if my readings are, say 5 or 6, yet in reality I may be about to have a severe hypo. It makes a bit of a mockery of trying to carb count and adjust ratios if these differences are there in all machines. The margin for error is huge. 1 of my machines is only about 18 months old so I don't think that has a fault in it.