I see some possible signs of infection, including a borderline high white cell count and borderline high neutrophils along with the elevated globulins. Of course it also could simply be inflammation, including the suspected IBD.
Her Creatinine is still within normal limits, although trending toward the upper limit. Her urea is elevated. Many things can affect urea, including the hydration status of the cat at the time the blood was drawn. The less hydrated, the higher the urea. Her SDMA value has gone down significantly. Since SDMA is supposed to be a marker for kidney disease, make what that you will. I’ve never really trusted that test to be a very good indicator of future kidney disease. In my own cats, it fluctuates around and I haven’t had a cat with kidney disease for four years now. Admittedly, it does rise after they’ve been diagnosed with kidney disease. It’s worth just keeping an eye on it at this point and making sure she stays well hydrated. You’ve already taken a positive step in that direction by feeding her wet food and eliminating the dry food. It makes quite a difference.
Of course, Scully would choose to go quite low in her glucose on a day she was going to the vet! It’s no wonder they are alarmed. Just make sure they know you have reduced the dose and are monitoring her cycles closely.
I know the vet had raised concern about elevated protein last time. Dietary protein does not raise blood total protein or globulin concentrations in healthy cats. Blood total protein (albumin + globulins) reflects liver production, immune proteins, and loss or gain from disease processes — not dietary intake of protein.
An elevated total protein driven by high globulins points to increased immune/inflammatory proteins (chronic infection, inflammation, immune-mediated disease, or certain cancers). Dietary change is not a cause.
She doesn’t seem really anemic because her Hematocrit is adequate. Her Mean Cell Hemoglobin Concentration is low but her reticulocytes (immature red blood cells) are adequate so she is producing enough. There are many reasons for reduced hemoglobin in the cells. It can be as simple as needing to supplement iron.
Was a urinalysis done? That is really the most straightforward way to check kidney function (and for infection). If her Urine Specific Gravity is adequate then her kidney function is not impaired.