One of the tests they do for T2 diabetes is to check whether your fasting blood glucose is over 7mmol/l
If it is, they usually call you in for a glucose tolerance test.
So you would be justified in going to your doc and saying that you had that result from a home test.
Trouble is...
- home meters are only accurate to with =/- 15%
https://www.diabetes.co.uk/blood-glucose-meters/blood-glucose-meter-accuracy.html
- some of us find that our fasting blood glucose rises until we have food, so testing at at any time in the morning is like pinning a tail on a moving target.
I would suggest testing your fasting blood glucose first thing and just before breakfast for a few days, and see what your normal pattern is.
If you find that you are one of the people whose blood glucose rises til you eat, then it doesn't automatically mean you are type 2, but it does mean that you can stop the rise by eating. Personally, I find that my rising FBG is halted by a cup of coffee with cream, or a brazil nut, or a slice of cheese. No need to have a Full English.