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Blood sugar monitoring -

Glucose is a type of sugar. It is your body's main source of energy. A hormone called insulin helps move glucose from your bloodstream into your cells.

Too much or too little glucose in the blood can be a sign of a serious medical condition. High blood glucose levels hyperglycemia may be a sign of diabetes , a disorder that can cause serious, long-term health conditions.

High blood sugar may also be caused by other conditions that can affect insulin or glucose levels in your blood, such as problems with your pancreas or adrenal glands. Low blood glucose levels hypoglycemia are common among people with type 1 diabetes and people with type 2 diabetes who take certain diabetes medicines.

Certain conditions, such as liver disease , may cause low levels of blood glucose in people without diabetes, but this is uncommon.

Without treatment, severe low blood sugar can lead to major health problems, including seizures and brain damage. Other names: blood sugar, self-monitoring of blood glucose SMBG , fasting plasma glucose FPG , fasting blood sugar FBS , fasting blood glucose FBG , random blood sugar, glucose challenge test, oral glucose tolerance test OGTT.

A blood glucose test is used to find out if your blood sugar levels are in a healthy range. It is often used to help diagnose and monitor diabetes. Your health care provider may order a blood glucose test if you have symptoms of high glucose levels or low glucose levels.

You may also need a blood glucose test if you have a high risk for developing type 2 diabetes. You're more likely to develop diabetes if you:.

If you are pregnant, you will likely get a blood glucose test between the 24th and 28th week of your pregnancy to check for gestational diabetes. A health care professional will take a blood sample from a vein in your arm, using a small needle. After the needle is inserted, a small amount of blood will be collected into a test tube or vial.

You may feel a little sting when the needle goes in or out. For some types of glucose blood tests, you will drink a sugary liquid and wait for an hour before your blood sample is taken:.

If your provider orders a fasting blood glucose test or an oral glucose tolerance test, you will need to fast not eat or drink for at least eight hours before the test. Other blood glucose tests don't require any special preparations.

Ask your provider whether you need to fast before your glucose test. There is very little risk to having a blood test. You may have slight pain or bruising at the spot where the needle was put in, but most symptoms go away quickly.

After an oral glucose tolerance test, you may feel light-headed. Your provider may suggest that you plan to have someone take you home. If your results show higher than normal glucose levels , it may mean you have or are at risk for getting diabetes.

High glucose levels may also be a sign of:. If your glucose results are not normal, it doesn't always mean you have a medical condition that needs treatment. Certain medicines and stress can affect glucose levels. To learn what your test results mean, talk with your health care provider.

Learn more about laboratory tests, reference ranges, and understanding results. If you have diabetes, you may need to do blood sugar testing at home every day to help manage your blood glucose levels. There are two ways to do this:. The information on this site should not be used as a substitute for professional medical care or advice.

Contact a health care provider if you have questions about your health. Blood Glucose Test. What is a Blood Glucose Test? What is it used for? Why do I need a blood glucose test? Symptoms of high blood glucose levels include: Increased thirst and urination peeing Blurred vision Fatigue Sores that don't heal Weight loss when you're not trying to lose weight Numbness or tingling in your feet or hands Symptoms of low blood glucose levels include: Feeling shaky or jittery Hunger Fatigue Feeling dizzy , confused, or irritable Headache A fast heartbeat or arrhythmia a problem with the rate or rhythm of your heartbeat Having trouble seeing or speaking clearly Fainting or seizures You may also need a blood glucose test if you have a high risk for developing type 2 diabetes.

You're more likely to develop diabetes if you: Are overweight or have obesity Are age 45 or older Have a family history of diabetes Have high blood pressure Don't exercise enough Have a history of heart disease or stroke Have had gestational diabetes diabetes that happens only during pregnancy If you are pregnant, you will likely get a blood glucose test between the 24th and 28th week of your pregnancy to check for gestational diabetes.

What happens during a blood glucose test? For some types of glucose blood tests, you will drink a sugary liquid and wait for an hour before your blood sample is taken: A glucose challenge test is used to test for gestational diabetes in pregnancy.

If your blood glucose level is higher than normal, you may have gestational diabetes. You'll need an oral glucose tolerance test OGTT to get a diagnosis. An oral glucose tolerance test OGTT is used to diagnose gestational diabetes, and type 2 diabetes and prediabetes in people who aren't pregnant.

A blood sample will be taken before you have a sugary drink and then again, every hour for the next 2 or 3 hours. Will I need to do anything to prepare for the test? If you take certain medication, like insulin or sulphonylureas, checking your blood sugars is a vital part of living with diabetes.

It can help you work out when you need to take more medication, when you need to eat something or for when you want to get up and move around more. Routine checks can help you know when you might be starting to go too low called a hypo or too high called a hyper.

It can help you and your healthcare team spot patterns too. Do you write your results down? You might find that helpful. But importantly, it will help you stay healthy and prevent serious diabetes complications now and in the future. By complications, we mean serious problems in places like your feet and your eyes.

This happens because too much sugar in the blood damages your blood vessels, making it harder for blood to flow around your body. This can lead to very serious problems like sight loss and needing an amputation. Knowing all the facts and speaking to other people can help — contact our helpline or chat to others with diabetes on our online forum.

Watch our video and follow our simple steps on how to test your blood sugars in the right way and safely. New meters come on the market all the time, so it can be tricky choosing the right one.

If you have sight problems, you may not be able to use some meters so your healthcare team can suggest alternatives. Some people can get meters on prescription.

But if you choose to buy your own meter, you might not get a prescription for the test strips it uses. Chat to your healthcare team. If this happens to you, take it up with your GP practice. Finger-prick devices pierce the skin with a needle so that a drop of blood can be taken for testing.

The needle is called a lancet. You can adjust the device to change how far it goes into the skin. Lancets come in different sizes and thicknesses or gauges. A higher-gauge lancet is thinner so is normally less painful, but it might not always give you enough blood.

More and more people with diabetes are choosing to use a flash glucose monitor to check their sugar levels. This is a blood sugar test without a needle. Instead it uses a sensor you wear on your skin and you an do the test without pricking your finger. The main brand is called the FreeStyle Libre.

It measures the amount of sugar in the fluid surrounding your cells, called interstitial fluid. We've been campaigning to make this life-changing technology more easily available — check out our Fight for Flash campaign. As well as regularly testing your own blood sugars, at least once a year your healthcare team will ask you to come in for an HbA1c blood test.

This checks your average blood sugar levels over the last three months and helps your diabetes team and you spot trends over time. A high HbA1c means you have too much sugar in your blood. So it's really important to have this test regularly so that you can make changes and reduce your risk of getting complications.

It may sound obvious, but you must record your readings. Note them down in a diary, a notebook or in your phone calendar. Some meters have software that lets you do this.

Wichtige Zugar zur iOS Version. Apple® wird in der kommenden iOS Digestive health and energy levels den Standby-Modus sugr Blood sugar monitoring Assistive Access-Modus einführen. Diese neuen Modi können sich auf Ihre Erfahrung mit Ihrer FreeStyle Libre 3 App 11 auswirken. Erfahren Sie hierwie Sie potenzielle Probleme vermeiden können. Entdecken Sie das von Menschen mit Diabetes weltweit meistgenutzte Glukose-Sensor-Messsystem. FreeStyle Libre 3 unterstützt Sie täglich bei Ihrem Diabetes­management. We include products we think are useful for our montioring. If you buy Root canal links on this page, zugar may earn a small commission. Healthline only shows you brands and products that we stand behind. Home glucose meters can help you keep tabs on your diabetes. Home glucose meters can help lower your risk of complications from diabetes.