Diabetes what is high blood sugar level

diabetes what is high blood sugar level

Manage Blood Sugar

Oct 25, †Ј This is blood sugar that's higher than mg/dL 2 hours after you eat. People without diabetes rarely have blood sugar levels over mg/dL after . If youТre ill and your blood sugar is mg/dL or above, use an over-the-counter ketone test kit to check your urine for ketones and call your doctor if your ketones are high. High ketones can be an early sign of diabetic ketoacidosis, which is a medical emergency and needs to be treated immediately.

High blood sugar hyperglycemia affects people who have diabetes. Several factors can contribute to hyperglycemia in people with diabetes, including food and physical activity choices, illness, nondiabetes medications, or skipping or not taking enough glucose-lowering medication. It's important to treat hyperglycemia, because if left untreated, hyperglycemia can become severe and lead to serious complications requiring emergency care, such as a diabetic coma.

In the how to make a bookshelf term, persistent hyperglycemia, even if not severe, can lead to complications affecting your eyes, kidneys, nerves and heart.

Symptoms of hyperglycemia develop slowly over several days or weeks. The longer blood sugar levels stay high, the more serious the symptoms become. However, some people who've what is a holosystolic murmur type 2 diabetes for a long time may not show any symptoms despite elevated blood sugar levels.

Recognizing early signs and symptoms of hyperglycemia can help you treat the condition promptly. Watch for:. If hyperglycemia goes untreated, it can cause toxic acids ketones to build up in your blood and urine ketoacidosis. Signs and symptoms include:.

During digestion, your body breaks down carbohydrates from foods Ч such as bread, rice and pasta Ч into various sugar molecules. One of these sugar molecules is glucose, a main energy source for your body. Glucose is absorbed directly into your bloodstream after you eat, but it can't enter the cells of most of your tissues without the help of insulin Ч a hormone secreted by your pancreas.

When the glucose level in your blood rises, it signals your pancreas to release insulin. The insulin unlocks your cells so that glucose can enter and provide the fuel your cells need to function properly. Any extra glucose is stored in your liver and muscles in the form of glycogen. This process lowers the amount of glucose in your bloodstream and prevents it from reaching dangerously high levels. As your blood doabetes level returns to normal, so does the secretion of insulin from your pancreas.

Diabetes drastically lowers insulin's effects on your body. This may be because your pancreas is unable to produce insulin type 1 diabetesor it may be because your body is resistant to the effects of insulin or doesn't produce enough insulin to maintain a normal glucose level type 2 diabetes.

As a result, glucose tends to build up in your bloodstream hyperglycemia and may reach dangerously high levels if not treated properly.

Insulin or other drugs are used to lower blood sugar levels. Illness or stress can trigger suar because hormones produced to combat illness or stress can also cause your blood sugar to rise.

Even people who don't have diabetes may develop transient hyperglycemia during severe illness. But people with diabetes may need to take extra diabetes medication to keep blood glucose near normal during illness or stress. Shgar your blood sugar in a healthy range can help prevent many diabetes-related complications.

Long-term complications of untreated hyperglycemia can include:. Leveel blood sugar rises high enough or for a prolonged period of time, it can lead to two serious conditions. Diabetic ketoacidosis.

Diabetic ketoacidosis develops when you don't have enough insulin in your body. When this happens, sugar glucose can't enter your cells for energy. Your blood sugar level rises, and your body begins to break down fat for energy. This process produces toxic acids known as ketones. Excess ketones accumulate in the blood and eventually "spill over" into the urine.

Diabetees untreated, diabetic xugar can lead to a diabetic coma and be life-threatening. Hyperglycemic hyperosmolar state. This condition occurs when people produce insulin, but it doesn't work properly.

Because insulin is present but not working properly, the body can't use either glucose or fat for energy. Glucose is then spilled into the urine, causing increased urination. Left untreated, diabetic hyperglycemic hyperosmolar state can lead to life-threatening dehydration and coma. Prompt medical care is essential. Mayo Clinic does not id companies or products.

Advertising revenue supports our not-for-profit mission. Don't delay your care at Mayo Clinic Schedule your appointment now for safe in-person care. This content does not have an English version. This content does not have an Arabic version. Overview High blood sugar hyperglycemia affects people who have diabetes. Request an Appointment at Mayo Clinic.

Share on: Facebook Twitter. Show references Hyperglycemia high blood glucose. American Diabetes Association. Accessed June 5, What is diabetes?

McCulloch DK. Management of persistent hyperglycemia in type 2 diabetes mellitus. Kitabchi AE, et al. Diabetic ketoacidosis and hyperosmolar hyperglycemic state in adults: Treatment.

Know your blood sugar numbers: Use them to manage your diabetes. Accessed May 30, Glycemic control and vascular complications in type 2 diabetes mellitus. Accessed June 6, Standards of Medical Diabetss in Diabetes Ч Diabetes Care. The big picture: Checking your blood glucose. Accessed June 8, Castro MR expert opinion. Mayo Clinic, Rochester, Minn.

July 7, Related Associated Procedures A1C test. Mayo Clinic Marketplace Check how to make cinnamon whipped cream these best-sellers and special offers on books and newsletters from Mayo Clinic.

When should I check my blood sugar?

Aug 27, †Ј High blood sugar or hyperglycemia is an abnormally high blood sugar (blood glucose) level in the blood. Hyperglycemia is a hallmark sign of diabetes (both type 1 diabetes and type 2 diabetes) and prediabetes. Signs and symptoms of hyperglycemia include .

Your blood sugar target is the range you try to reach as much as possible. Staying in your target range can also help improve your energy and mood. Find answers below to common questions about blood sugar for people with diabetes. Use a blood sugar meter also called a glucometer or a continuous glucose monitor CGM to check your blood sugar. A blood sugar meter measures the amount of sugar in a small sample of blood, usually from your fingertip.

A CGM uses a sensor inserted under the skin to measure your blood sugar every few minutes. How often you check your blood sugar depends on the type of diabetes you have and if you take any diabetes medicines. A blood sugar target is the range you try to reach as much as possible. These are typical targets:. Your blood sugar targets may be different depending on your age, any additional health problems you have, and other factors.

Be sure to talk to your health care team about which targets are best for you. Low blood sugar also called hypoglycemia has many causes, including missing a meal, taking too much insulin, taking other diabetes medicines, exercising more than normal, and drinking alcohol.

Know what your individual symptoms are so you can catch low blood sugar early and treat it. Low blood sugar can be dangerous and should be treated as soon as possible. Driving with low blood sugar can be dangerous, so be sure to check your blood sugar before you get behind the wheel. Carry supplies for treating low blood sugar with you. If you feel shaky, sweaty, or very hungry or have other symptoms, check your blood sugar. Wait for 15 minutes and then check your blood sugar again.

If you have problems with low blood sugar, ask your doctor if your treatment plan needs to be changed. Many things can cause high blood sugar hyperglycemia , including being sick, being stressed, eating more than planned, and not giving yourself enough insulin. Over time, high blood sugar can lead to long-term, serious health problems. Symptoms of high blood sugar include:.

If you get sick , your blood sugar can be hard to manage. You may not be able to eat or drink as much as usual, which can affect blood sugar levels. High ketones can be an early sign of diabetic ketoacidosis, which is a medical emergency and needs to be treated immediately.

Ketones are a kind of fuel produced when fat is broken down for energy. When too many ketones are produced too fast, they can cause diabetic ketoacidosis, or DKA.

DKA is very serious and can cause a coma or even death. Diabetic ketoacidosis external icon , or DKA, is a life-threatening diabetes complication that can happen when fat is broken down for energy and ketones are produced too quickly and build up in the body. Common symptoms of DKA include:. If you think you may have DKA, test your urine for ketones. Follow the test kit directions, checking the color of the test strip against the color chart in the kit to see your ketone level.

If your ketones are high, call your health care provider right away. DKA requires treatment in a hospital. Talk to your doctor about how to keep your blood sugar levels within your target range. Your doctor may suggest the following:.

Carbs in food make your blood sugar levels go higher after you eat them than when you eat proteins or fats. You can still eat carbs if you have diabetes. The amount you can have and stay in your target blood sugar range depends on your age, weight, activity level, and other factors.

Counting carbs in foods and drinks is an important tool for managing blood sugar levels. Make sure to talk to your health care team about the best carb goals for you.

The A1C test is a simple blood test that measures your average blood sugar levels over the past 2 or 3 months. A1C testing is part of the ABCs of diabetesЧimportant steps you can take to prevent or delay health complications down the road:.

Work with your doctor to establish a personal A1C goal for you. Eating a healthy diet with plenty of fruit and vegetables, maintaining a healthy weight , and getting regular physical activity can all help. Other tips include:. Medicare external icon , Medicaid, and most private insurance plans pay for the A1C test and fasting blood sugar test as well as some diabetes supplies. Check your plan or ask your health care team for help finding low-cost or free supplies, and see How to Save Money on Diabetes Care for more resources.

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