is it possible to have no sugar in the urine and yet

[George&Bert]

have high Fructosamine levels?

I am supposed to start Andre' back on insulin but the vet was wrong yesterday when he said he was NOT diabetic.

Now he says the Fructosamine test says he is.

Sorry for sort of double posting. I don't know where to get an answer.

 

[Libby and Lucy]

sure, it's possible. The urine test is essentially just a snapshot of what has happened in his body since the last time he urinated. If he has been under the renal threshhold (which is somewhere around 200-230 for most cats) since the last time he emptied his bladder, then the urine stick might show no glucose. The fructosamine measures levels over a period of a couple of weeks. Fructosamine is usually the best way to diagnose diabetes in cats because it helps balance out the variables that might cloud a blood or urine test (vet stress, what they have eaten recently, etc.).

 

[George&Bert]

I thought I read on here once that that fruc test was undated or not reliable. Maybe I'm thinking of something else. Too long ago to remember.

 

[Sienne and Gabby (GA)]

The fructosamine is a reliable diagnostic test. (It's the equivalent of a hemoglobin A1c in humans.) If a caregiver is getting routine tests (i.e., pre-shots and spot checks), there's no reason for you to pay a vet to get a fructosamine level since you have the data on your SS. The fructosamine averages BG over a period of approx. 3 weeks.