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Treating High Blood Sugar

Table of Contents


Topic Overview

If you have diabetes, your doctor will give you blood sugar goals and recommendations for treating high blood sugar. Here are some general guidelines.

Mild to moderately high blood sugar

Follow these steps if blood sugar is over the target range set by your doctor, for example, over 200 milligrams per deciliter (mg/dL) for two or more readings a few hours apart.

Extremely high blood sugar

Follow these steps if blood sugar is extremely high, for example, over 400 mg/dL in a child or over 600 mg/dL in an adult. Some blood sugar meters read only levels up to about 400 mg/dL.

After a high blood sugar episode

After the blood sugar level has returned to a target range, continue medicine as prescribed by the doctor and check blood sugar levels as directed. Report the episode to the doctor.

Drink extra liquids to replace the fluids lost through the urine. Water and sugar-free drinks are best. Avoid caffeinated drinks and alcohol. Also avoid regular soda pop, fruit juice, and other liquids that contain a lot of sugar.


Credits for Treating High Blood Sugar

Current as of: July 28, 2021

Author: Healthwise Staff
Medical Review:
E. Gregory Thompson MD - Internal Medicine
Adam Husney MD - Family Medicine
Kathleen Romito MD - Family Medicine
Rhonda O'Brien MS, RD, CDE - Certified Diabetes Educator


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