What Is Diabetic Ketoacidosis
When the body doesn’t have enough insulin, glucose stays in the blood and can’t get into the body’s cells to be used for energy. This can happen, for example, when someone skips doses of insulin or when the need for insulin suddenly increases and the doses are not adjusted.
When the body can’t use glucose for fuel, it starts to use fat. When this happens, chemicals called ketones are released into the blood. Some of these ketones, like extra glucose, pass out of the body through the urine.
High levels of ketones in the blood can be a problem because they cause the blood to become acidic. Too much acid in the blood throws off the body’s chemical balance and causes the symptoms listed below. In people with diabetes, this problem is called diabetic , or DKA. DKA is a very serious condition that can lead to coma or death if it’s not treated. The good news, though, is that it’s preventable and can be treated.
DKA happens more often in people with type 1 diabetes, but can sometimes also happen to those with type 2 diabetes.
Is Having High Blood Glucose Dangerous
In short, it can be. Zanini says that untreated high blood glucose can lead to a wide range of health issuesâsome of the most common being chronic inflammation, heart disease, vision impairment, kidney disease, nerve damage, tooth decay, damaged blood vessels, and periodontal disease.
Having high blood glucose also puts us at risk of mitochondrial dysfunction and oxidative stress. The former is a condition in which mitochondria fail to produce energy for cells. The latter occurs when free radicals outnumber antioxidants in the body and increase the risk of disease and other damage.
Phipps notes to avoid these risks, catching high blood glucose early on, then taking action to treat it is extremely important.
How Is Hyperglycemia Diagnosed
If you have diabetes and notice a sudden change in your blood sugar levels during your home monitoring, you should alert your doctor of your symptoms. The increase in blood sugar may affect your treatment plan.
Regardless of whether you have diabetes, if you begin experiencing any symptoms of hyperglycemia, you should speak to your doctor. Before going to your appointment, you should note what symptoms youre experiencing. You should also consider these questions:
- Has your diet changed?
- Have you had enough water to drink?
- Are you under a lot of stress?
- Were you just in the hospital for surgery?
- Were you involved in an accident?
Once at your doctors appointment, your doctor will discuss all of your concerns. Theyll perform a brief physical exam and discuss your family history. Your doctor will also discuss your target blood sugar level.
If youre age 59 or younger, a safe blood sugar range is generally between 80 and 120 milligrams per deciliter . This is also the projected range for people who dont have any underlying medical conditions.
People who are age 60 or older and those who have other medical conditions or concerns may have levels between 100 and 140 mg/dL.
Your doctor may conduct an A1C test to determine what your average blood sugar level has been in recent months. This is done by measuring the amount of blood sugar attached to the oxygen-carrying protein hemoglobin in your red blood cells.
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When To See A Doctor
If youre experiencing one or many of these symptoms enough for it to raise a mental red flag or affect your life , thats a sign that you should talk to a doctor about your concerns. An expert like a primary care provider can help determine if high blood sugar due to diabetes or prediabetes is the cause of your symptoms. Even if youre not sure thats exactly whats going on, its still worth having a conversation with your doctor about hyperglycemia and other possible causes behind your symptoms.
How Does Hyperglycemia Happen

Insulin is a hormone that lets your body use the sugar in your blood, which comes primarily from carbohydrates in the food that you eat. Hyperglycemia happens when your body has too little insulin to use the sugar in your blood.
People with type 1 diabetes can have episodes of hyperglycemia every day. Although this can be frustrating, it rarely creates a medical emergency. Not taking enough insulin can lead to hyperglycemia .
Other things that can cause hyperglycemia include:
- Caffeine
- Having trouble seeing or concentrating
- Experiencing stomach pain, nausea, or vomiting
- Having sweet-smelling or fruity breath
- Cuts or sores that do not heal, infections, and unexplained weight loss may also be signs of long-term hyperglycemia.
If you notice any of these symptoms, you should check your blood sugar. If your blood sugar is very high, you should also test for ketones in either your blood or urine.
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Only Diabetics Get High Glucose Values
While a high glucose value can indicate diabetes, nondiabetics can also have higher values than normal. When researchers studied people wearing a continuous glucose monitor who did not have a diabetes diagnosis, they found 93% of individuals reached glucose levels that are considered dangerous, with 10% spending over 2 hours per day in these dangerous levels. Traditional glucose measurements, like a single point in time blood glucose value, are unable to capture these abnormalities.
There are actually several causes of high blood sugar unrelated to diabetes that the CDC recognizes. These include certain foods, like artificial sweeteners and coffee. Other factors like stress can do it, too. If you live with an endocrine or pancreatic condition, had surgery recently, or are experiencing intense physical stress , you may also see your glucose value rise.
Whats Considered High Glucose In A Blood Test
If your doctor asked you to avoid eating and drinking for several hours before your blood test, you likely had what’s called a fasting blood sugar test. According to Mayo, a fasting blood glucose test result of less than 100 milligrams per deciliter is considered normal. If your result was between 100 and 125, your doctor may evaluate you for prediabetes, and if your result was 126 or higher, your doctor likely will evaluate you for diabetes.
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Can Hyperglycemia Be Treated
Your doctor may recommend a low-impact exercise program as your first line of defense. If youre already following a fitness plan, they may recommend that you increase your overall level of activity.
Your doctor may also suggest that you reduce glucose-rich food intake. Its important to maintain a balanced diet and stick to healthy food portions. If you arent sure where to begin, your doctor can refer you to a dietician or nutritionist who can help you establish a diet plan.
If these changes dont help lower your high blood sugar, your doctor may prescribe medication. If you have diabetes, your doctor may prescribe oral medications or change the amount or type of insulin youve already been prescribed.
Early Signs And Symptoms Of Diabetes
1. Frequent urination
When your blood sugar is high, your kidneys expel the excess blood sugar, causing you to urinate more frequently. One of the early warning signs of diabetes is frequent urination that is urgent enough to wake you up to go to the bathroom during sleep.
2. Increased thirst
While your kidneys are working overtime and youre urinating more frequently, valuable fluids will be pulled from your tissues. Frequent urination will make you feel constantly thirsty.
3. Fatigue
When your blood sugar is high, your body works hard to get rid of the excess sugar. Not only does this process take a toll on your body, but it also alters the way that your body uses glucose for energy. Excessively high blood sugar, or hyperglycemia, has fatiguing effects among other symptoms. Additionally, the dehydration that accompanies more frequent urination is a common cause of fatigue in diabetics.
4. Blurred vision
High blood sugar can cause damage to the small blood vessels of the eye, resulting in a swollen lens that can cause blurred vision. As blood sugar levels rise and lower, your vision may return to normal or worsen, respectively.
5. Increased hunger
When you have high blood sugar, your body is actively looking to get rid of it. Because your body expels so much of the glucose you’re getting from your food, you may have increased feelings of hunger.
6. Unexplained weight loss
7. Slow healing cuts and wounds
8. Tingling or numbness in the hands or feet
9. Skin discoloration
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High Blood Sugar And Albumin
Elevated albumin in blood. albumin is in charge of preventing a leak of the blood from the blood vessels. albumin also facilitates growth of the tissues and hastens healing of tissue injury. by and large, albumin testing is done in liver and kidney diseases. normal level of albumin is in the range of 3.4 to 5.4 g/dl.. Albumin. albumin is found in such substances as blood, milk, and egg whites. in humans it has special relevance to people with diabetes because its presence in urine is a marker of diabetic kidney disease. the job of the kidneys is to filter protein by-products and water from the bloodstream and to maintain the proper balance. Albumin in urine in type 2 diabetes. the tiny blood vessels act as filters in kidneys and can filter out extra fluid and wastes from body.in right condition, the albumin is too big to pass through the tiny blood vessels and will stay in blood. however, long-term high blood sugar can impair the tiny blood vessels and damage.
What Causes High Morning Blood Sugars
Two main culprits prompt morning highs: the dawn phenomenon and waning insulin. A third, much rarer cause, known as the Somogyi effect, may also be to blame.
The occasional morning high will have little impact on your A1C, a measure of your average blood sugar levels over time that indicates how well managed your diabetes is. But if those highs become consistent, they could push your A1C up into dangerous territory.
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How Can I Treat And Manage Hyperglycemia
People with both type 1 and type 2 diabetes can manage hyperglycemia by eating healthy, being active, and managing stress. In addition, insulin is a critical part of managing hyperglycemia for people with type 1 diabetes, while people with type 2 diabetes may need oral medications and eventually insulin to help them manage hyperglycemia.
If you dont have diabetes and have any of the signs and symptoms of hyperglycemia, call your healthcare provider. Together you can work to manage your hyperglycemia.
What Are The Recommended Targets For Blood Glucose Levels

Many people with diabetes aim to keep their blood glucose at these normal levels:
- Before a meal: 80 to 130 mg/dL
- About 2 hours after a meal starts: less than 180 mg/dL
Talk with your health care team about the best target range for you. Be sure to tell your health care professional if your glucose levels often go above or below your target range.
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Urgent Advice: Call Your Care Team Immediately Or Get Help From Nhs 111 If:
You think you have high blood sugar and:
- you’re feeling sick, being sick or have stomach pain
- you’re breathing more quickly than usual or your heart is beating faster than usual
- you feel drowsy or are struggling to stay awake
- your breath has a fruity smell
- you feel confused or have difficulty concentrating
- you have a high level of ketones in your blood or pee
These could be signs you’re becoming seriously unwell.
You can call 111 or get help from 111 online.
Page last reviewed: 26 May 2022 Next review due: 26 May 2025
Check Your Blood Glucose Levels
For many people with diabetes, checking their blood glucose level each day is an important way to manage their diabetes. Monitoring your blood glucose level is most important if you take insulin. The results of blood glucose monitoring can help you make decisions about food, physical activity, and medicines.
The most common way to check your blood glucose level at home is with a blood glucose meter. You get a drop of blood by pricking the side of your fingertip with a lancet. Then you apply the blood to a test strip. The meter will show you how much glucose is in your blood at the moment.
Ask your health care team how often you should check your blood glucose levels. Make sure to keep a record of your blood glucose self-checks. You can print copies of this glucose self-check chart. Take these records with you when you visit your health care team.
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If You Regularly Have High Blood Sugar Levels
Having high blood sugar levels regularly is not something you should live with. This is because in the long-term it can increase your risk of developing diabetes complications, such as neuropathy and retinopathy.
If you notice that your blood sugar levels are often high, you should contact your diabetes healthcare team. They will review your treatment and provide you with advice on how to get your blood sugar levels back within your target range. This advice may include increasing your medication.
In the video below, Lynsey talks to Khalida about feeling anxious after getting a high blood sugar level reading. If youre finding it hard to deal with similar feelings, weve got information on emotional health that you may find helpful.
Swollen Or Bleeding Gums Which Increase Your Infection Risk
Gum disease is a complication of diabetes, notes the National Institute of Diabetes and Digestive and Kidney Disease. It can also make diabetes harder to control, because the bodys response to infection is to release more glucose into the bloodstream, according to the ADA.
Your saliva contains glucose and the more it contains, the more there is to feed the bacteria that combine with food in your mouth to form plaque and cause gum disease. Symptoms can include red or inflamed gums at first. If they are unaddressed, they can progress to periodontitis, which can cause your gums to pull away from your teeth, the appearance of pus or ulcers, or even tooth loss, notes the Mayo Clinic. Get your blood sugar under control and see a dental professional to prevent damage to your gums and teeth.
Additional reporting by Diana Rodriguez and Andrea Peirce.
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Hyperglycemia Prediabetes And Diabetes
Glycosuria can result from hyperglycemia, which is high blood sugar. Prediabetes, which occurs before Type 2 diabetes, as well as diabetes, which is a long-term condition marked by high blood sugar levels, can also trigger glycosuria.
Diabetes affects the hormone insulin and the bodys ability to store and use sugar as energy. With uncontrolled diabetes and high blood sugar levels, the kidneys aren’t able to absorb all of the sugar. The kidneys then get rid of the excess sugar from the body through the urine.
While glycosuria may not cause symptoms, if you have uncontrolled diabetes or high blood sugar levels, you may experience other symptoms like:
- Excessive thirst
How Are High Blood Sugar Levels Treated
Treating high blood sugar levels involves fixing what caused them in the first place. Your diabetes health care team will give you specific advice on how to keep your blood sugar levels in a healthy range. But here are some ways to manage the common causes of high blood sugar levels:
Reason for High Blood Sugar Level | What to Do |
---|---|
Not getting enough insulin or other diabetes medicine |
|
Not following the meal plan |
|
Not getting enough exercise |
|
Illness or stress |
|
Use of other medicines that can increase blood sugar |
|
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What Are The Signs & Symptoms Of High Blood Sugar Levels
Signs of high blood sugar levels include:
- Peeing a lot: The kidneys respond by flushing out the extra glucose in urine. People with high blood sugar need to pee more often and in larger amounts.
- Drinking a lot: Someone losing so much fluid from peeing that often can get very thirsty.
- Losing weight even though your appetite has stayed the same: If there isn’t enough insulin to help the body use glucose, the body breaks down muscle and stored fat instead in an attempt to provide fuel to hungry cells.
- Feeling tired: Because the body can’t use glucose for energy properly, a person may feel unusually tired.
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