Negative urine glucose

[hgoodwin2007]

Hi all,

We have been testing our cats urine for glucose and ketones once or twice weekly as we work on home testing. Long story short: our girl was previously feral and was requiring 100 mg of gabapentin just to tolerate the insulin injections twice a day, so we had to put glucose testing on the back burner for a bit. We get a reading here and there as tolerated but nothing consistent yet.

On Wednesday, her urine glucose was 1+ and last night it was negative x 2 on the KetoDiastik This concerned me and we scrubbed up for an ear jab which returned at 126 on the Relion meter 1 hour and 40 minutes after eating. I held the dose because I was concerned she would go too low and we didn’t have enough readings to make an informed decision. We did a 2 hour fasting this AM and it was back to 312.

I have a call out to the vet, but should I be concerned with the negative urine reading? Any other thoughts? I was reading that all diabetic cats should have trace glucose and a negative reading could mean hypoglycemia or remission other sources say the negative readings just mean that it is below the renal threshold.

 

[Larry and Kitties]

Yes, if you are only testing urine for glucose you really want to always have glucose in the urine since with negative glucose one does not know how low the BG s. Glucose gets into the urine when the blood glucose is about 240 but it can be higher or lower since there does not really seem to be a firm value for all cats. You did not tell us the insulin you are using, the dose and the changes in the dose you have made. Without that info I can't say much. IN some cats BG with rise a little 1-2 hours after injection and eating so you could have had a lower BG when you fed and injected. Also what are you feeding and how often?

 

[tiffmaxee]

Max had glucose in his urine when diagnosed but once on lantus he no longer did.

 

[Bron and Sheba (GA)]

Can you setup your signature please so we can see what insulin to you are using and the type of meter please.
A negative glucose reading in the urine means it is below the urine threshold. But it is wise to be cautious if you are not testing. It does not mean the cat is in remission.