What Happens During A Blood Glucose Test
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:
- 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 to get a diagnosis.
- An oral glucose tolerance test 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.
Completing Your Blood Sugar Routine
What Is The A1c Test
The A1C test is a simple blood test that measures your average blood sugar levels over the past 2 or 3 months. The test is done at a lab or your doctors office in addition tonot instead ofregular blood sugar testing you do yourself.
A1C testing is part of the ABCs of diabetesimportant steps you can take to prevent or delay health complications down the road:
- A: Get a regular A1C test.
- B: Try to keep your blood pressure below 140/90 mm Hg .
- C: Manage your cholesterol levels.
- s: Stop smoking or dont start.
The A1C goal for most adults with diabetes is between 7% and 8%, but your goal may be different depending on your age, other health conditions, medicines youre taking, and other factors. Work with your doctor to establish a personal A1C goal for you.
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What Are The Target Ranges
Blood glucose targets are individualized based on:
- duration of diabetes
- conditions a person may have
- cardiovascular disease or diabetes complications
- hypoglycemia unawareness
- individual patient considerations
The American Diabetes Association suggests the following targets for most nonpregnant adults with diabetes. A1C targets differ based on age and health. Also, more or less stringent glycemic goals may be appropriate for each individual.
- A1C: Less than 7%A1C may also be reported as eAG: Less than 154 mg/dL
- Before a meal : 80130 mg/dL
- 1-2 hours after beginning of the meal *: Less than 180 mg/dL
What Causes Low Blood Sugar
Low blood sugar has many causes, including missing a meal, taking too much insulin, taking other diabetes medicines, exercising more than normal, and drinking alcohol. Blood sugar below 70 mg/dL is considered low.
Signs of low blood sugar are different for everyone. Common symptoms include:
Know what your individual symptoms are so you can catch low blood sugar early and treat it. If you think you may have low blood sugar, check it even if you dont have symptoms. Low blood sugar can be dangerous and should be treated as soon as possible.
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Why Checking Your Blood Sugar Is Crucial
Monitoring your blood sugar helps your doctor determine if your treatment plan is working and if your medication needs adjusting. Blood sugar thats too high, referred to as hyperglycemia, or too low, known as hypoglycemia can cause health problems such as dizziness, confusion, blurred vision and even coma. The good news: A patient with well-controlled type 2 diabetes whos treated with metformin may only check their glucose a few times a week or month, says Dr. Kohlenberg.
How To Test Blood Sugar
People with diabetes usually check their blood sugar levels themselves. However, its a good idea to have a roommate, friend, or family member also know how to do it if you are sick and cant do it yourself.
To use a blood sugar meter, follow these steps:
If you are interested in CGM, you should talk to your healthcare provider since these are prescription devices. To use CGM, follow these steps:
You will also need to change the sensors on the CGM regularly, usually every one to two weeks.
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Consequences Of Blood Sugar Levels
Whilst most symptoms of low and high blood sugar levels are mild, they can worsen if left untreated and sometimes have long term consequences and/or complications. Overtime, a high blood sugar level is what can cause consequences. Lack of treatment can cause severe damage to the blood vessels and lead to complications such as:
- Damage to the eyes and/or loss of vision
- Nerve problems in the feet leading to infections
To avoid long term consequences and complications, it is advised to take all precautionary measures and treat your blood sugar level so that it can be maintained at your ideal reading. So do so, follow all treatment methods, stay on track with checking your level daily and seeking help if symptoms persist.
If you have any more questions, here are a few of the most frequently asked questions which may answer your concerns:
How To Use A Blood Glucose Meter:
- After washing your hands, insert a test strip into your meter.
- Use your lancing device on the side of your fingertip to get a drop of blood.
- Touch and hold the edge of the test strip to the drop of blood and wait for the result.
- Your blood glucose level will appear on the meter’s display.
Note: All meters are slightly different, so always refer to your user’s manual for specific instructions.
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How To Test Your Blood Sugar At Home
Follow these steps:
How Do I Check
People with diabetes check their blood glucose levels by poking their fingertips and using a blood glucose meter or a continuous glucose monitor to measure the blood glucose level at that moment. Read on to find out how to use a blood glucose meter. To find out more about CGMs, start by talking to your doctor.
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How Does Blood Sugar Level Work
With a lack of nutrients and food that contain glucose, the blood sugar level will begin to decline. This is known as hypoglycemia.
After blood sugar becomes low, the pancreas releases a peptide hormone called glucagon. When this happens, the glucose that is stored in the body for energy is instructed to release due to the liver. This causes the glucose to turn into glycogen, known as the glycogenesis process. This is what can help a body to regain energy as the readily stored glycogen, in the liver and muscles, will release into the body.
On the other hand, the blood sugar can also rise and become too high which is known as hyperglycemia.
When the body does not produce enough of the insulin hormone, blood sugar levels begin to increase. This is because glucose relies on the insulin hormone to help it absorb into the bloodstream. Usually, this occurs when the body cannot produce enough insulin, known as type 1 diabetes, or does not respond to insulin correctly, known as type 2 diabetes.
Eating too many processed foods can also cause your blood sugar level to rise. If there is not enough insulin present in the body, too much bad food can cause your blood sugar level to build up.
For those with a normal blood sugar level, this will be due to eating the right foods and your body being able to produce and respond to insulin.
You may be wondering what exactly causes an imbalance in blood sugar levels, so here is a roundup:
What Can I Expect On The Day Of The Test
A fasting blood glucose test is often done with a common blood draw. A healthcare provider will:
- Clean the area inside your elbow to kill any germs.
- Tie a band around your upper arm, which will help the veins in your arm fill with blood.
- Insert a clean needle into a vein .
- Draw blood into a vial thats attached to the needle and labeled with your personal information.
- Remove the band and then the needle.
- Put pressure on the needle insertion site to stop the bleeding.
- Place a bandage on the area.
After the test, the healthcare provider will send the blood sample to a lab for testing.
In some cases, your healthcare provider may be able to test your blood sugar with a prick on the finger instead of a needle in the vein. The provider uses a blood glucose monitor and test strip to measure your blood glucose level in the office.
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Tests For Gestational Diabetes
Gestational diabetes is diagnosed using blood tests. Youll probably be tested between 24 and 28 weeks of pregnancy. If your risk is higher for getting gestational diabetes , your doctor may test you earlier. Blood sugar thats higher than normal early in your pregnancy may indicate you have type 1 or type 2 diabetes rather than gestational diabetes.
Symptoms Of Diabetes That May Prompt An A1c Test
As mentioned by the , a doctor may recommend an A1C test if a person shows signs of poor glucose control, diabetes, or prediabetes.
Warning signs can include:
- increased urination, especially at night
- increased hunger
- numbness or tingling in the hands or feet
- slow healing sores
- more than 45 years of age
- family history of diabetes
- long-term use of glucocorticoids, antipsychotics, and certain medications for HIV
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If You’re Diagnosed With Diabetes
What the GP will discuss with you during your appointment depends on the diagnosis and the treatment they recommend.
Generally, they’ll talk to you about:
- what diabetes is
- what high blood sugar means for your health
- whether you need to take medicine
- your diet and exercise
- your lifestyle for example, alcohol and smoking
Risk Factors For Diabetes
You may have more likely to get type 1 diabetes if you:
- are a teenager or younger
- have a family member with the condition
- have certain genes that give you a genetic predisposition
Your risk for type 2 diabetes may increase
Research has shown that type 2 diabetes occurs more often in adults with Native American, African American, Hispanic or Latino American, Asian American, or Alaskan or Pacific Islander ancestry than non-Hispanic white adults.
They may also be more likely to experience decreased quality of care and increased barriers to prevention and self-management support due to healthcare disparities.
Checking your blood sugar levels can be done at home or in a doctors office. Read on to learn more about blood sugar tests, who they are for, and what the results mean.
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Causes Of Blood Sugar Levels
Whilst the liver and muscles produce some glucose, most comes from the foods we eat. Food and drinks that are high in carbohydrates are most impactful on blood sugar level. What we eat provides us most of the nutrients our body needs and sometimes, does not need. That is not to say that food is a major cause of blood sugar level increasing or decreasing too dramatically.
Typically, if a person has health conditions or poor nutrition, this will lead to a spike or decline in blood sugar level. The causes differ from high to low blood sugar levels and are as follows:
How Can I Check My Blood Sugar
Use a blood sugar meter or a continuous glucose monitor 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. If you use a CGM, youll still need to test daily with a blood sugar meter to make sure your CGM readings are accurate.
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Make Physical Activity Part Of Your Daily Routine
Set a goal to be more physically active. Try to work up to 30 minutes or more of physical activity on most days of the week.
Brisk walking and swimming are good ways to move more. If you are not active now, ask your health care team about the types and amounts of physical activity that are right for you. Learn more about being physically active with diabetes.
Following your meal plan and being more active can help you stay at or get to a healthy weight. If you are overweight or obese, work with your health care team to create a weight-loss plan that is right for you.
When Would I Need A Blood Glucose Test
There are three main reasons why you may need a blood glucose test:
- Your healthcare provider may have ordered routine bloodwork called a basic metabolic panel or a comprehensive metabolic panel , which both include a glucose blood test.
- You may be having symptoms of high blood sugar or low blood sugar, which could indicate diabetes or another condition.
- If you take a long-term medication that affects your blood sugar levels, such as corticosteroids, you may need routine glucose blood tests to monitor your levels.
The most common use of a blood glucose test is to screen for Type 2 diabetes , which is a common condition. Certain people are at risk for developing Type 2 diabetes. If you have risk factors, your provider will likely recommend regular screening no matter your age. The American Diabetes Association recommends regular screening for anyone age 35 or older.
Your provider will also order a blood glucose test if you have symptoms of high blood sugar or low blood sugar .
Symptoms of diabetes and high blood sugar include:
- Feeling very thirsty .
- Intense hunger.
- Anxiousness or irritability.
You need to consume carbohydrates to treat hypoglycemia, such as a banana or apple juice. Severe hypoglycemia can be life-threatening.
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Why Test Blood Sugar Levels
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 or too high . Its a way of getting to know your body and how it works. 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.
The higher your blood sugar levels are and the longer theyre high for, the more at risk you are.
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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