Glucose, ketone question..

I am wondering others opinions on this: fasting glucose yesterday a.m. 92, ketones 1.1, GKI 4.6. This morning fasting glucose 113, ketones .7, GKI 8.9. Eaten yesterday: lamb, incl fat, chuck roast, incl fat, macadamia nuts...few baby carrots & maybe 1 tsp mashed potatoes from the roast. Why would those few carbs cause such a fluctuation? Am I still very insulin resistant? What is this telling you? I am not sure what to think....