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What Happens When Your Blood Sugar Rises


Blood Sugar Spike Symptoms

Understanding BLOOD SUGAR & CORTISOL Levels During & After EXERCISE! High & Low Glucose from Workout

Learning to recognize the symptoms of hyperglycemia can help you keep your diabetes in control. Some people with diabetes immediately feel the symptoms of high blood sugar, but others go undiagnosed for years because their symptoms are mild or vague.

Symptoms of hyperglycemia typically begin when your blood glucose goes above 250 milligrams per deciliter . Symptoms get worse the longer you go untreated.

Symptoms of a blood sugar spike include:

  • frequent urination

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.

Why Is My Blood Sugar Level High

The clinical term for high blood sugar is hyperglycemia. The most common cause of high blood sugar is Diabetes Mellitus or DM. It is a condition where the body cannot absorb glucose due to any abnormality in the production or action of a hormone called Insulin. Diabetes is mainly of two types: Type 1 and Type 2. Majority of diabetics are suffering from type 2 diabetes, caused by reduced action of Insulin.

However, blood sugar can be high for various other reasons. Illness or injury, hormone disorders, overeating, obesity, some medications can increase blood sugar levels.

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Faq: What Causes Blood Sugar To Drop Rapidly

Blood sugar levels rise and fall as the body does its business. Insulin is responsible for lowering blood sugar. This is the basic and common answer as to what causes blood sugar to drop rapidly: insulin.


Of course, this basic answer doesnt explain why blood sugar levels might drop more quickly than normal, or what else influences the body in its glycemic descent.

Lets take a closer look!

How Do I Know If I’m At Risk

Background

Testing your urine with a urine test strip will reveal the presence of ketones in your urine high levels of these chemicals are a potential signal of diabetic ketoacidosis. Your doctor will tell you when you should perform the test, but the ADA says that, in general, you may want to check your urine for ketones when your blood sugar levels hit more than 240 mg/dL.

Other symptoms of diabetic ketoacidosis include nausea, difficulty breathing, an altered mental state and a fruity odor on the breath.

“In our clinic, if a person has blood sugar levels of over 300 mg/dL, we will check for urine ketones,” says Susan Spratt, MD, an endocrinologist and associate professor of medicine at Duke University School of Medicine. “If their blood sugar levels are over 300 mg/dL and certainly over 400 mg/dL we’re concerned that they may be going into diabetic ketoacidosis.”


If your urine test reveals that ketones are present, call your doctor, who can give you further instructions. You may need to go to the emergency room to seek treatment right away. The ADA says that if you have ketones present in the body, you shouldn’t exercise. In this case, exercise can cause your blood sugar levels to spike even higher.

Read more:What Is a Healthy Blood Sugar Reading in the Morning?

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How To Prevent Hyperglycaemia

There are simple ways to reduce your risk of severe or prolonged hyperglycaemia:

  • Be careful what you eat be particularly aware of how snacking and eating sugary foods or carbohydrates can affect your blood sugar level.
  • Stick to your treatment plan remember to take your insulin or other diabetes medications as recommended by your care team.
  • Be as active as possible getting regular exercise can help stop your blood sugar level rising, but you should check with your doctor first if you’re taking diabetes medication, as some medicines can lead to hypoglycaemia if you exercise too much.
  • Take extra care when you’re ill your care team can provide you with some “sick day rules” that outline what you can do to keep your blood sugar level under control during an illness.
  • Monitor your blood sugar level your care team may suggest using a device to check your level at home so you can spot an increase early and take steps to stop it.

Page last reviewed: 08 August 2018 Next review due: 08 August 2021


What If It Goes Untreated

Hyperglycemia can be a serious problem if you don’t treat it, so it’s important to treat as soon as you detect it. If you fail to treat hyperglycemia, a condition called ketoacidosis could occur. Ketoacidosis develops when your body doesn’t have enough insulin. Without insulin, your body can’t use glucose for fuel, so your body breaks down fats to use for energy.

When your body breaks down fats, waste products called ketones are produced. Your body cannot tolerate large amounts of ketones and will try to get rid of them through the urine. Unfortunately, the body cannot release all the ketones and they build up in your blood, which can lead to ketoacidosis.

Ketoacidosis is life-threatening and needs immediate treatment. Symptoms include:

  • Shortness of breath

Talk to your doctor about how to handle this condition.

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What Is High Blood Sugar

The is the amount of glucose in the blood. Glucose is a sugar that comes from the foods we eat, and it’s also formed and stored inside the body. It’s the main source of energy for the cells of our body, and it’s carried to each cell through the bloodstream.

Hyperglycemia is the medical word for high blood sugar levels. High blood sugar levels happen when the body either can’t make insulin or can’t respond to insulin properly . The body needs insulin so glucose in the blood can enter the cells of the body where it can be used for energy. In people who have developed diabetes, glucose builds up in the blood, resulting in hyperglycemia.

Having too much sugar in the blood for long periods of time can cause serious health problems if it’s not treated. Hyperglycemia can damage the vessels that supply blood to vital organs, which can increase the risk of heart disease and stroke, kidney disease, vision problems, and nerve problems. These problems don’t usually show up in kids or teens who have had the disease for only a few years. But they can happen in adulthood in some people with diabetes, particularly if they haven’t managed or controlled their diabetes well.

Blood sugar levels are considered high when they’re above your target range. Your diabetes health care team will let you know what your target blood sugar levels are.

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Sleep Habits And Diabetes

What happens to your blood sugar when you work out?

While diet and obesity are big contributors to your odds of having diabetes, studies have found that sleep habits are, too, probably because over time, they can affect how well your cells respond to insulin.


In one study, more than 4,000 people reported the amount of sleep they got each night. Those who got less than 6 hours were twice as likely to have cells that were less sensitive to insulin or to have full-blown diabetes. This was true even after the researchers took other lifestyle habits into account.

Other sleep disruptions and disorders, such as sleep apnea, also seem to raise a personâs odds of having diabetes.

But the risk goes up at the other end of the spectrum, too. For reasons that arenât clear, people who sleep too much — more than 9 hours a night — might also have higher chances of getting diabetes.

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Caution: Birth Control Pills

Types that have estrogen can affect the way your body handles insulin. Still, oral contraceptives are safe for women with diabetes. The American Diabetes Association suggests a combination pill with norgestimate and synthetic estrogen. The group also says birth control shots and implants are safe for women with the condition, though they can affect your blood sugar levels.


How To Test For Ketones

You can use a urine test strip or blood ketone meter and ketone test strip to test for ketones at home. Testing either urine or blood is important, but when possible, a blood test is preferred because it gives you and your care team more precise information about your ketone levels. Because urine may have been in the bladder for some time, the results from these tests may show levels that are either higher or lower than the ketone levels that are actually circulating in your body. It is also very important to know that urine test trips degrade over time, so if you are using this method, you need to look at expiration dates carefully.

Your diabetes care team can give you specific directions about when you should check for ketones, but in general, you should check for them when your blood glucose is 240 mg/dL or higher. You should also check for ketones if you notice any of the DKA symptoms listed above or if you are sick it is possible to have ketones while your blood glucose levels are within range .

At-home urine test strips will change color to show the level of ketones in the urine. They typically report results as negative, trace, small, moderate or large. Blood ketone meters will provide a number that indicates the ketone levels. The following ranges are generally used:

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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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Planning For Sick Days

Chapter 12 Homeostasis

Your body releases stress hormones when you are sick, which can cause hyperglycemia. Keep taking your insulin and other diabetes medications, even if you are throwing up. If you have ketones and your blood sugar is above 240 mg/dL, call your doctor. They might also want you to call if:

  • You have diarrhea that lasts more than 6 hours
  • You are throwing up
  • You have a high fever or trouble breathing
  • You feel very sleepy or confused

Continue checking your blood sugar levels and keep track of the results.

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Why Does Blood Sugar Go Up At Night

There are many factors that can cause your blood sugar to increase at night. For example: what food you ate during the day, how much and when you exercised, whether you ate snacks before bed, the timing of your insulin doses, and your stress level. You can experience different patterns of high blood sugar at night. You may start with high glucose when you go to bed, start the night in range but go high several hours later, or spend most of the night in range until the hours just before you wake up. By identifying your bodys patterns, you can figure out what is causing your high blood sugar and how to address it.

Common causes of a glucose increase at night include:


/5how To Tell The Difference

The major difference between the two is that the Somogyi effect leads to hypoglycemia followed by hyperglycemia. One of the easiest ways to find out if the spike in the blood sugar level is due to the Somogyi effect is to check blood sugar levels at bedtime and after waking up. If the blood sugar level is low at night then it is due to the Somogyi effect. In case it is normal or high it can be due to the dawn phenomenon. Another point to keep in mind is that the Somogyi effect can occur any time of the day when your body has a high blood sugar level.

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Tingling Hands And Feet

Over the years, hyperglycemia can begin to impact nerve function and eventually cause nerve damage, called neuropathy, Dr. Hatipoglu says. The most common kind of neuropathy is peripheral, according to the NIDDK, which affects the extremities. You might start noticing feelings of tingling, numbness, or burning in your hands, feet, arms, and legs, per the Mayo Clinic.

Why Blood Sugar Levels Rise Overnight

why does blood sugar rise without eating

When you go to bed, your blood sugar reading is 110, but when you wake up in the morning, it has shot up to 150. Why does this happen?

To understand how blood sugar levels can rise overnight without your eating anything, we have to look at where glucose comes from and where it goes while we sleep.


During the day, the carbohydrates we eat are digested into glucose and absorbed into the bloodstream. Some of this glucose goes to the liver, where it is stored for later use.

At night, while we are asleep, the liver releases glucose into the bloodstream. The liver acts as our glucose warehouse and keeps us supplied until we eat breakfast. The amount of glucose being used is matched by the amount of glucose being released by the liver, so blood sugar levels should remain constant.

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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. They may ask you for the results of several readings. They could recommend the following changes:

Drink more water. Water helps remove excess sugar from your blood through urine, and it helps you avoid dehydration.


Exercise more. Working out can help lower your blood sugar. But under certain conditions, it can make blood sugar go even higher. Ask your doctor what kind of exercise is right for you.

Caution: If you have type 1 diabetes and your blood sugar is high, you need to check your urine for ketones. When you have ketones, do NOT exercise. If you have type 2 diabetes and your blood sugar is high, you must also be sure that you have no ketones in your urine and that you are well-hydrated. Then your doctor might give you the OK to exercise with caution as long as you feel up to it.

Change your eating habits. You may need to meet with a dietitian to change the amount and types of foods you eat.

Switch medications. Your doctor may change the amount, timing, or type of diabetes medications you take. Donât make changes without talking to them first.

If you have type 1 diabetes and your blood sugar is more than 250 mg/dL, your doctor may want you to test your urine or blood for ketones.


The Blood Sugar Level Regulation Mechanism

When you eat rice, bread, or any other typical food high in carbohydrates, it is digested by the stomach and small intestine, where it is absorbed into the blood as glucose. Figure 1 shows how it is absorbed into the body.

Figure 1: Absorption of glucose

  • 1The sugar in food is absorbed into the blood as glucose.
  • 2The pancreas secretes insulin in reaction to the increase in glucose.
  • 3Because the glucose is absorbed into the liver, muscle, adipose tissue and other cells, the blood sugar level drops to the level it was before anything was eaten. This is the mechanism found in healthy people.
  • When glucose enters the bloodstream, insulin facilitates its uptake into the body’s cells. When an excess of glucose is ingested, insulin over secretion occurs. Insulin increases the biosynthesis of fat and suppresses its breakdown. Thus, it becomes easier for fat to accumulate in body tissues.

    Blood sugar level will not drop if the sugar in the blood is not properly processed due to, for example, too little insulin being secreted, or resistance to the action of insulin. If blood sugar levels have not decreased several hours after eating on a regular basis, this indicates a susceptibility to diabetes. To avoid this and stay healthy, we should eat types of foods that will not cause a sudden, extreme rise in blood sugar levels.

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    • Fasting blood sugar level 99mg/dL
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    Insulin And Blood Sugar

    Insulin is an important hormone that helps regulate your blood sugar levels. The pancreas makes insulin. It helps control your blood sugar levels by assisting the cells that absorb sugar from the bloodstream.

    If you have type 1 diabetes, your body doesnt make insulin. This means you have to inject insulin every day.

    If diet and exercise arent enough to manage blood sugar, those with type 2 diabetes may be prescribed medications to help keep blood sugar levels within target ranges.

    If you have type 2 diabetes, your body produces insulin, but may not use it properly or produce enough of it. Your cells dont respond to insulin, so more sugar keeps circulating in the blood.

    Exercise can help the cells respond better and be more sensitive to insulin. The proper diet can also help you avoid spikes in blood sugar. This can help keep your pancreas functioning well since high blood sugar levels decrease pancreatic function.

    Type 1 Diabetes High Blood Sugar Symptoms

    9 Warning Signs That Your Blood Sugar Levels Are High

    Wondering about the signs and symptoms of hyperglycemiaor high blood sugar? High blood sugar occurs in type 1 diabetes when the body has too much glucose/food or not enough insulin. Having hyperglycemia symptoms doesnt immediately put you in danger but regular high blood-sugar levels over time does. Thats because they can lead to complications including blindness, heart disease, kidney failure and amputation. What are the symptoms of high blood sugar? Thirst Frequent urination Stomach pain Blurry vision Increased Hunger Other signs of hyperglycemia With high blood sugar, you may also experience drowsiness, exhaustion, nausea or vomiting, confusion, fruity or sweet-smelling breath, impaired concentration and sweating. And, having very high blood-glucose levels for an extended period can lead to diabetic ketoacidosis . DKA happens when the body starts to burn fat and body tissue for energy. This releases toxic acids called ketones that build up in the blood and urineand can lead to a diabetic coma. So if youre experiencing any of the above signs or symptoms, its important to get checked out by your doctor. The earlier high blood-sugar issues are treated, the better. Your support is more critical than everContinue reading > >

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