We have not been home testing. We began using this new insulin (ProZinc) about 10 days ago per our vet and are now feeding Samson only wet food (Purine DM). So far he has been doing very well on this dose. I did phone an emergency vet clinic. They told me to feed him carbs - which I did immediately after I realized what had happened - and watch him closely. No more insulin today since he's already had the 4 units. So far he is not lethargic. He's not playing much, but I think it's because his little belly is so full. I have a One Touch Verio glucose meter here at home (for my own use). Can I use this on the kitty to test him?