Just checked his sugar now that I am home and it is 16.8 (302.4). I did not give him his needle last night until 7. Not sure what to do
Ok, Diesel has only had one shot of insulin and went low on the very first small dose of 0.5U (half a unit).
As MrWorfMen's Mom said, you want to get back to testing and dosing when it will make the most sense with your schedule and life responsibilities. you want to keep to a 12 hour dosing schedule if possible, but that may slip now and then. Life happens. High BG numbers are not good in the long term, but low BG can have more immediate dangers. Under 50 mg/dl (<2.7 mmol) is low with a human meter.
Things to consider/ideas.
1. You had difficulties with testing him last night. Do you want to see if the testing gets more reliable with experience before giving insulin?
2. You are changing to a low carb food at the same time as you are starting him on insulin. You could hold off on the insulin until the food change is complete or further along.
3. What do you want to have as your regular shot times? What will be better for you with your work schedule?
4. Do you work this weekend? or do you have some time off to monitor? If so, if no ketones, wait until a couple of days off to re-start the insulin.
5. Think about when you might be able to test at the +3 to +7 timeframe to see if you can find Diesel's nadir. Before bed? Early in the morning? After you get home from work? Weekends? Depends if you are a night owl or early riser.
6. Have you been able to contact your vet to review the blood results again?