The vet said that when a cat is difficult to regulate and has DKA's, it means there may be something else going on, perhaps cancer. She also said it's better to shoot in the hip area rather than on the scruff because the scruff is more fibrous and doesn't absorb the insulin as smoothly. She told me that one of her cats went into remission after 4 years of being diabetic. She's a very nice vet, about my age. I wonder why I never see any other patients in her office, maybe because she treats only cats. She told me that if there are ketones at a time when she is open, to bring Chloe in to treat at the office, rather than the hospital.