Common

High Blood Sugar and Diabetes

Blood sugar control is at the center of any diabetes treatment plan. High blood sugar, or hyperglycemia, is a major concern, and can affect people with both type 1 and type 2 diabetes . There are two main kinds:

 

Fasting hyperglycemia. This is blood sugar that’s higher than 130 mg/dL (milligrams per deciliter) after not eating or drinking for at least 8 hours.

 

Postprandial or after-meal hyperglycemia. This is blood sugar that’s higher than 180 mg/dL 2 hours after you eat. People without diabetes rarely have blood sugar levels over 140 mg/dL after a meal, unless it’s really large.

 

Frequent or ongoing high blood sugar can cause damage to your nerves, blood vessels, and organs. It can also lead to other serious conditions. People with type 1 diabetes are prone to a build-up of acids in the blood called ketoacidosis.

 

If you have type 2 diabetes or if you’re at risk for it, extremely high blood sugar can lead to a potentially deadly condition in which your body can’t process sugar. It’s called hyperglycemic hyperosmolar nonketotic syndrome (HHNS). You’ll pee more often at first, and then less often later on, but your urine may become dark and you could get severely dehydrated.

 

It’s important to treat symptoms of high blood sugar right away to help prevent complications.

Causes

Your blood sugar may rise if you:

Symptoms

Early signs include:

Ongoing high blood sugar may cause:

How Is It Treated?

If you have diabetes and notice any of the early signs of high blood sugar, test your blood sugar and call the doctor. He may ask you for the results of several readings. He could recommend the following changes:

Call your doctor if your blood sugar is running higher than your treatment goals.

How to Prevent It

If you work to keep your blood sugar under control — follow your meal plan, exercise program, and medicine schedule — you shouldn’t have to worry about hyperglycemia. You can also:

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Ongoing high blood sugar may cause: