In your place I'd go up to about 100g of carb per day for 3 days. That should sort out the ketosis! After your day of tests it should take about 3 days of low-carbing to use up all the extra carbs and get you back into ketosis. That's according to The Good Doctor A.
That's Atkins not Asimov, of course :lol: .
I'm probably eating around 100g a day at the moment (still not properly back on track after Inverness) and my fasting BGs are consistently at 5.4, which I assume means that my previous weight loss has helped with the insulin resistance. Sadly that knowledge allows me to be weak-willed. As does this horrible cold weather.
Best of luck at the hospital, Unbeliever.
Viv 8)