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What Happens If The Sugar Level Is High

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What Is Low Blood Glucose

How to bring down high blood sugar levels (hyperglycemia)

Low blood glucose, also called low blood sugar or hypoglycemia, occurs when the level of glucose in your blood drops below what is healthy for you. For many people with diabetes, this means a blood glucose reading lower than 70 milligrams per deciliter .1 Your number might be different, so check with your doctor or health care team to find out what blood glucose level is low for you.

High Blood Sugar Levels

If you have diabetes, you can find out if your blood sugar level is high by having a blood sugar test.

You may have regular tests by your care team or GP surgery, or you may have tests you can do at home.

Types of diabetes test and high blood sugar levels.

Type of testHigh level
Test done by a health professional to check your blood sugar level over the last 2 or 3 months48 mmol/mol or over
Test done by a health professional after not eating for a few hoursOver 7 mmol/L
Home test done after waking up or before eatingOver 7 mmol/L
Home test done at any other timeOver 11 mmol/L

Moderate To Severe High Blood Sugar

You may have moderate to severe symptoms if your blood sugar levels are consistently high. These symptoms include:

  • Blurred vision.
  • Flushed, hot, dry skin.
  • Restlessness, drowsiness, or difficulty waking up.

People with type 1 diabetes and some people with type 2 diabetes produce little or no insulin. These people may also have:

  • Rapid, deep breathing.
  • A fast heart rate and a weak pulse.
  • A strong, fruity breath odor.
  • Loss of appetite, belly pain, and/or vomiting.

If your blood sugar levels continue to rise, you may:

  • Become confused and sluggish.
  • Pass out if your blood sugar levels are very high.

Current as of: April 13, 2022

Author: Healthwise Staff

Medical Review:E. Gregory Thompson MD – Internal Medicine& Adam Husney MD – Family Medicine& Rhonda O’Brien MS, RD, CDE – Certified Diabetes Educator

This information does not replace the advice of a doctor. Healthwise, Incorporated, disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of Use. Learn how we develop our content.

To learn more about Healthwise, visit Healthwise.org.

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Mental Health And Diabetes

Living with and managing either type 1 or type 2 diabetes can lead to stress, anxiety and depression. This can affect your blood glucose levels and how you manage your diabetes in general. Over time, this can affect your health.It is important to talk to your doctor if you are going through times of stress, depression or anxiety. Your doctor can refer you to a counsellor or psychologist by providing a diabetes mental health plan. This is Medicare rebated.Other help is available, including:

  • online resources

Low Blood Sugar Level Causes

Whats The Big Deal on Blood Sugars?

Most low blood sugar level causes are preventable and are caused due to a persons lifestyle and diet habits. Low blood sugar is common among diabetic patients who take medications to increase insulin levels.

All of the above causes are risk factors that may or may not be able to be inhibited. They are important to be aware of and act accordingly to keep yourself from getting a too high or too low blood sugar level.

If a person has medical, lifestyle or diet habits that cause irregular blood sugar levels, symptoms will begin to develop along with the drop or spike in blood sugar, and are as follows:

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Low Blood Glucose During Sleep

Your blood glucose level can drop while you sleep and stay low for several hours, causing serious problems.7 Symptoms of low blood glucose while you sleep can include

  • crying out or having nightmares
  • sweating enough to make your pajamas or sheets damp
  • feeling tired, irritable, or confused after waking up

Although you may not wake up or notice any symptoms, low blood glucose can interfere with your sleep, which may affect your quality of life, mood, and ability to work. Having low blood glucose during sleep can also make you less likely to notice and respond to symptoms of low blood glucose during the day.

What Causes High Blood Sugar Levels

Managing diabetes is like a three-way balancing act because you have to watch:

  • the medicines you take (
  • the food that you eat
  • the amount of exercise you get
  • All three need to be balanced. If any one of these is off, blood sugar levels can be too. In general, higher than normal blood glucose levels can be caused by:

    • not taking your diabetes medicine when you’re supposed to or not taking the right amounts
    • not following the meal plan
    • not getting enough exercise
    • having an illness, like the flu
    • stress
    • taking other kinds of medicines that affect how your diabetes medicines work

    A single high blood sugar reading usually isn’t cause for alarm it happens to everyone with diabetes from time to time. But if you have high blood sugar levels a lot, let your parents and your diabetes health care team know. Insulin or meal plans may need adjusting, or you may have an equipment issue, like an insulin pump that isn’t working right. Whatever the case, make sure you get help so you can get your blood sugar levels back under control.

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    Type 1 Diabetes And Hyperglycemia: Handling High Blood Sugar

    One of the hallmarks of type 1 diabetes is hyperglycemia, or high blood glucose . Theres a very good reason that glucose levels climb high in type 1 diabetes, and thats a lack of insulin. When the pancreas shuts down insulin production, blood glucose levels start to climb. If there is sufficient insulin in the bloodstream, say, from an insulin injection or insulin infusion from a pump, glucose levels return to a safe level. If there is little or no insulin available, the situation becomes serious, both in the short term and the long term.

    To get cutting-edge diabetes news, strategies for blood glucose management, nutrition tips, healthy recipes, and more delivered straight to your inbox, !

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    You’re Noticing Skin Tags And Other Skin Issues

    At What Blood Sugar Level Does the Damage Begin?

    Skin tags and other skin issues can be a sign that something is wrong with your blood glucose levels. People with diabetes frequently have to deal with these types of things because high glucose levels affect the way cells produce collagen, making it difficult for the body to heal itself properly after an injury or wound occurs.

    In addition, high glucose levels can cause blood vessels to become damaged, which leads to skin issues such as spider veins and rosacea. It’s important that you make sure you’re getting enough Vitamin A in your meal plan, so the body has what it needs to keep itself strong and healthy.

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    What Can Happen To My Body If My Sugar Is Higher Than 600 For Many Hours

    Dangerously high blood sugar levels cause ketoacidosis. A blood sugar level over 600 for many hours is considered extremely dangerous and should be treated at a hospital. Hyperglycemia is the medical term for elevated blood sugar levels. According to the American Diabetes Association, blood sugars more than 240 can cause ketoacidosis รข a condition where the body starts using fat for energy. Ketoacidosis can lead to coma and death.

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    When To Call For Medical Advice

    It is important to note that very high blood glucose levels can be dangerous and it is important to be aware of the symptoms and risk factors of the following conditions:

    If you are struggling to keep your blood glucose levels under control, speak to your GP or consultant who can advise you or refer you onto a diabetes education course.

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    Diabetes And Healthy Eating

    If you have diabetes its important to include a wide variety of nutritious and healthy foods in your diet, and to avoid snacking on sugary foods.

    Enjoy a variety of foods from each food group be sure to include foods high in fibre and low in fat and reduce your salt intake. Its helpful to consult with a dietitian to review your current eating plan and provide a guide about food choices and food quantities.

    How Common Is Low Blood Glucose

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    Low blood glucose is common among people with type 1 diabetes and among people with type 2 diabetes who take insulin or some other diabetes medicines. In a large global study of people with diabetes who take insulin, 4 in 5 people with type 1 diabetes and nearly half of those with type 2 diabetes reported a low blood sugar event at least once over a 4-week period.2

    Severely low blood glucose, defined as when your blood glucose level drops so low you cant treat it yourself, is less common. Among U.S. adults with diabetes who take insulin or some diabetes medicines that help the pancreas release insulin into the blood, 2 in 100 may develop severely low blood glucose each year.3

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    Oral Health And Diabetes

    People with poorly managed diabetes are at increased risk of tooth decay and gum infections. This is because the small blood vessels that help nourish your teeth and gums can become damaged. Poor oral care can cause the gums to become inflamed and loosen around your teeth. It’s also strongly linked with an increased risk of heart disease.To reduce your risk of teeth and gum problems:

    • See your dentist regularly for a check-up.
    • Brush your teeth at least twice a day and floss once a day.
    • If you have dentures, make sure you brush your dentures and gums with a soft toothbrush.

    What Are The Complications Of Low Blood Glucose

    Mild-to-moderate low blood glucose can be easily treated. But severely low blood glucose can cause serious complications, including passing out, coma, or death.

    Repeated episodes of low blood glucose can lead to

    • high blood glucose levels, if worry or fear of low blood glucose keeps you from taking the medicines you need to manage your diabetes8
    • hypoglycemia unawareness, a condition in which you dont notice any symptoms of low blood glucose until your blood glucose level has dropped very low

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    What If I Have Severe Low Blood Glucose And Cant Treat Myself

    Glucagona hormone that raises blood glucose levelsis the best way to treat severely low blood glucose. Available as an injection or a nasal spray, glucagon will quickly raise your blood glucose level. Your doctor can prescribe you a glucagon kit for use in case of an emergency.

    If your blood glucose level drops very low, you wont be able to treat it by yourself. Be prepared to address severely low blood glucose by

    • talking with your doctor or health care team about when and how to use a glucagon emergency kit. If you have an emergency kit, regularly check the date on the package to make sure it hasnt expired.
    • teaching your family, friends, and coworkers when and how to give you glucagon. Tell them to call 911 right away after giving you glucagon or if you dont have a glucagon emergency kit with you.
    • wearing a medical alert identification bracelet or pendant. A medical alert ID tells other people that you have diabetes and need care right away. Getting prompt care can help prevent the serious problems that low blood glucose levels can cause.

    Symptoms Signs Causes Of Levels Of High Blood Sugar In The Blood

    7 Alarming Signs Your Blood Sugar Is Too High

    High blood sugar or hyperglycemia is an abnormally high blood sugar level in the blood. Hyperglycemia is a hallmark sign of diabetes and prediabetes.

    Signs and symptoms of hyperglycemia include blurred vision, headaches, hunger, and …

    The normal ranges for blood sugar levels in adults who do not have diabetes while fasting are 72-99 mg/dL. These ranges may increase to 80-130 mg/dL for those being treated for diabetes.

    According to the American Diabetes Association, people with diabetes should have

    • blood sugar levels of 80-130 mg/dL before eating a meal , and
    • less than 180 mg/dL about 1-2 hours after eating a meal

    High blood sugar ranges for people who dont have diabetes begin at 140 mg/dL, while those being treated for diabetes have a high range beginning at 180 mg/dL.

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    High Blood Sugar Treatment

    • Medication change: High blood sugars may be a sign that the person with diabetes needs to take medication, to change medications, or to change the way it is given .
    • Other illness: Other illnesses need to be diagnosed and treated if an illness is causing high blood sugar levels. Infection or illness may need to be treated in the hospital, where health professionals can adjust the plan of care.
    • Other Medications: A number of medications are available to help control blood sugar levels for people with type 2 diabetes. Insulin is also prescribed for people with diabetes .

    What Are The Signs & Symptoms Of Dka

    The symptoms of diabetic ketoacidosis usually don’t develop all at once they usually come on slowly over several hours. People who have DKA may:

    • feel really tired
    • feel really thirsty or pee way more than usual
    • have a dry mouth and signs of dehydration

    These symptoms are caused by the high blood sugar levels that usually happen before someone develops DKA. If the person doesn’t get treatment, these signs of DKA can happen:

    • abdominal pain
    • unconsciousness

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    What Is The Dawn Phenomenon

    Another reason for high nighttime blood sugar levels is the dawn phenomenon. The dawn phenomenon occurs early in the morning when the body naturally signals your liver to produce glucose, giving your body the energy it needs to wake up.

    The hormonal changes associated with the dawn phenomenon happen to people with or without diabetes, though those without diabetes do not experience hyperglycemia. If you take insulin, you may need to try a new basal insulin or adjust the timing and amount of your basal dose or your nighttime basal rates to cover an early morning rise.

    Your Legs And Feet Are Swollen

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    When there’s too much sugar in the system, it can pull water into cells, which will swell up over time if you don’t get these fluids moving through your body regularly.

    The American Diabetes Association claims that people who have diabetes tend to have legs and feet up to five times larger than they should be, which can lead to complications within the circulatory system, including infections and reduced blood flow.

    If you notice your feet and ankles begin to swell up, make sure to keep them elevated when possible. It’s important to treat swelling as soon as possible by elevating your legs higher.

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    Symptoms Of Blood Blood Sugar Levels

    Symptoms of blood sugar levels differ depending on if it is high or low. To determine which way the blood sugar have moved, the symptoms for each are typically:

    High Blood Sugar Symptoms
    Slow healing woundsTurning pale

    If symptoms are left untreated, more extreme circumstances can happen such as fainting, weakness, disorientation, vomiting and dehydration. When you notice symptoms, usually more than one at one time, it is advised to see a doctor right away.

    It is important to get the right treatment so that you can return to a healthy normal blood sugar level and inhibit it from occurring again.

    Treatment methods vary from the severity of the blood sugar level, whether it is high or low and if the patient has existing medical conditions, such as diabetes. Here are ways in which blood sugar levels can be treated:

    Treating Low Blood Sugar

    You are at risk of having a low blood sugar reaction if you:

    • Skip or delay a meal or snack
    • Take too much insulin or eat too few carbohydrates
    • Exercise
    • Drink alcohol, especially without eating carbohydrates

    Check your blood sugar if you have any of these symptoms:

    • Weakness and/or fatigue

    If your blood sugar is less than 70 milligrams per deciliter :

    • Eat 15 to 30 grams of carbohydrate
    • Wait 15 minutes and then recheck your blood sugar
    • If your blood sugar is still less than 100 mg/dl, take another 15 grams of carbohydrate and retest your blood sugar in another 15 minutes. Repeat if necessary.

    Important: If you have frequent low blood sugars speak to your doctor. You may need changes in your medication and/or meal plan.

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    What You Can Do Now

    Your doctor will provide you with clear steps to follow aimed at lowering your blood sugar levels. Its important that you take their recommendations to heart and make any necessary lifestyle changes to improve your health. If left untreated, hyperglycemia can lead to serious, and sometimes life-threatening, complications.

    Your doctor may recommend that you buy a blood glucose meter to use at home. This is a simple and effective way to monitor your blood sugar and act quickly if your levels have spiked to an unsafe level. Being aware of your levels can empower you to take charge of your condition and live a healthy lifestyle.

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