What to do when you have ketones? Diabetes Home Sick days When to follow your sick day plan Go to hospital when What are ketones? How do ketones happen? What to do when you have ketones You have ketones. How do you feel? You have ketones. What do you do? The ketone test will tell you a number. 0.0 means you do not have ketones. It is ok to have a small number. Like 0.5. You have 0.6 OR more. Like 0.8 You have ketones. You must follow your sick day plan now. Do not wait. You have 1.5 OR more than 1.5 . Like 1.7 . You have high ketones. Call your diabetes team. You must follow your sick day plan now. Do not wait You have 3.0 or more than 3.0 Call the ambulance. Do not wait. Back Diabetes Home Next This is general information. Talk to your doctor for information made for you.