Check your blood sugar again to confirm the reading
Drink water
Take insulin or diabetes medication exactly as prescribed
Follow your doctor’s correction-dose plan if you have one
Walk or do light activity only if you feel well and your blood sugar is not very high with ketones
Avoid sugary drinks, sweets, and refined carbs
Eat a small, balanced meal if you have not eaten and your medication requires it
Check for ketones if your blood sugar is very high, especially if you have type 1 diabetes
Seek urgent medical help if you have vomiting, trouble breathing, confusion, severe weakness, chest pain, or signs of dehydration
Call emergency services if blood sugar is extremely high or you cannot keep fluids down
Contact a healthcare professional promptly if high readings keep happening