Hi everyone, my 15 year old cat (Bam) was diagnosed with diabetes about a year ago. Vet started him on 1 unit of Lantus 2x a day at first and gradually built him up to 5 units 2x daily. After a few months we came home to find him disoriented and took him to the ER. They did a 24 hr curve and send us home with the dose of 1 unit in the AM and 2 units in the PM. Follow up with vet and over time (and many fructosamine tests) he ended up at 3 units 2X a day. Last week I cam home to find him disoriented and wedged between the wall and the dresser. Rushed him to the ER where he spent 4 days and had another 24 hour curve. He is home now and I found someone to teach me home testing. He had been eating Hill's Prescription Diet W/D dry food. We have switched him to a low carb diet (Fancy Feast Classic Pate) and he is now on 1 unit of Lantus 2x a day. We've been testing with a Relion meter for 5 days now. His numbers tend to be in the 300 range for the most part. We are becoming more comfortable with the testing, but understanding and interpreting the numbers is frightening. I will need some help with this as I go along. I know if his numbers are low, I should not inject. What is the cut off number for that? He had some very low numbers when he was at the ER (in the 50's, 80's and one time at 37) The lowest he has been at home was yesterday morning - he was at 183. I did inject the Lantus then. Highest so far was 458 and that was Wednesday night. Do I need to be concerned? I appreciate any help.