“I vaguely remember doing it in the early 80s, but I wasn’t diabetic then.
And even then, we only used urine strips.”
There is a problem with using ketone strips. during the brief period you are still adapting the metabolism to burn ketones, the urine strips can be effective. After you become adapted to the ketosis the ketones are being burned and start to disappear from the urine, which gives erroneous results. Blood ketone tests are necessary, and they can vary according to the type being used.