Hba1c Test For Diabetes Diagnosis
An HbA1c test does not directly measure the level of blood glucose, however, the result of the test is influenced by how high or low your blood glucose levels have tended to be over a period of 2 to 3 months.
Indications of diabetes or prediabetes are given under the following conditions:
- Normal: Below 42 mmol/mol
- Prediabetes: 42 to 47 mmol/mol
- Diabetes: 48 mmol/mol
There are two types of blood sugar levels that may be measured. The first is the blood glucose level we get from doing finger prick blood glucose tests. These give us a reading of how high our levels are at that very point in time.
The second is the HbA1c reading, which gives a good idea of our average control over a period of 2 to 3 months. The target blood glucose levels vary a little bit depending on your type of diabetes and between adults and children.
Where possible, try to achieve levels of between 4 and 7 mmol/L before meals and under 8.5 mmol/L after meals. The target level for HbA1c is under 48 mmol/mol .
Research has shown that high blood glucose levels over time can lead to organ and circulation damage.
Keeping blood glucose above 4 mmol/l for people on insulin or certain medications for type 2 diabetes is important to prevent hypos occurring, which can be dangerous.
Your doctor may give you different targets. Children, older people and those at particular risk of hypoglycemia may be given wider targets.
FREE blood glucose level chart
Diabetes Tracking And Treatment
- Follow your diabetes treatment plan: Understand the treatment plan before leaving the healthcare providers office and discuss barriers that could prevent you from following the program. Attend all follow-up visits.
- Consistently take prescribed medications: If a healthcare provider has prescribed medications to reduce blood sugar levels, take them regularly. Some people only take medication when they arent feeling well, but these medications dont work unless taken consistently.
- Monitor and track blood sugar: Regular blood sugar monitoring is the most important step in diabetes management, according to the CDC. Healthcare providers can inform patients of different types of meters and help patients find the best one for them. Providers can also tell patients how often to check their blood sugar and what their target blood sugar range is.Keep a log of your blood sugar levels to look for patterns and triggers for blood sugar spikes and lows. If you wear a continuous glucose monitor, you can use the data. Learning what causes blood sugar to rise or decrease can help you create a plan to keep it consistent.
High And Low Blood Sugar Levels In Diabetes
The chart below shows the concerning values of blood sugar levels for diabetic patients. Red levels are indicators that require emergency treatment, while yellow levels indicate medical attention but not an emergency.
| Chart of High and Low Blood Sugar Levels in Diabetes |
|---|
| Blood sugar level status |
| 71 to 90 mg/dL |
High Blood Sugar Levels Range
Low Blood Sugar Levels Range
Summary
High blood sugar range is between 180 to 250 mg/dL, while below 70 mg/dl is low. Above 250 mg/dL and under 50 mg/dL requires immediate medical attention.
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Controlling Blood Glucose Levels
Uncontrolled blood sugar can result in regular episodes of hyperglycemia . This can cause a variety of symptoms including:
- Dry mouth
- Nausea
- Fatigue
These symptoms are uncomfortable to experience but there are things you can do at home to reduce your blood sugar. In terms of drinks, water is the best as it will help to maintain hydration and dilute excess sugar in the blood. Also, try to add more fiber to your diet to reduce your blood sugar apples, bananas, oranges, and strawberries are all fibrous fruits.
However, uncontrolled blood sugar levels can also lead to more severe, long term disease. Poorly managed diabetes leads to vision loss, kidney problems, nerve damage, heart attack, and stroke. Therefore, if your blood sugar level reaches 16.7mmol/L, this could be dangerous and you need to seek immediate medical attention.
What Should I Do After I Check My Blood Glucose
Write the blood glucose number in a log book or on a log sheet , and:
- Include all of your blood glucose numbers.
- Write a comment if there is a reason the blood glucose is above or below target.
- Take your blood glucose meter with you when you are away from home.
- Know your blood glucose numbers when you call the clinic or the doctor.
- Bring your blood glucose meter and blood glucose records to all your appointments.
- Bring a list of any questions that you may have.
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Blood Sugar Levels After Eating
Blood sugar fluctuates throughout the day, but the biggest changes happen around mealtimes. Before eating, a healthy sugar level is between 3.9-5.5mmol/L. Around 1-2 hours after eating, expect blood sugar to rise to 5-10mmol/L.
If your blood sugar doesn’t stick within these ranges, the body may have stopped regulating blood sugar effectively which can lead to prediabetes and diabetes.
Can You Have High A1c And Not Be Diabetic
According to one 2009 study, 3.8% of people without a history of diabetes have an elevated A1C level . This group is more likely to have other risk factors for Type 2 diabetes and cardiovascular disease. Researchers found that the following groups were more likely to have an elevated A1C without having a diagnosis of diabetes:
- Older
- Obesity
- Higher C-reactive protein levels
A high A1C result might signal that there is a problem. Even a modest increase in your blood sugar, above normal levels, can increase your risk of heart disease, even when you dont have full-blown diabetes, says Dr. Bellatoni. A physician can review test results and talk to patients about risk factors and lifestyle changes to improve blood sugar levels.
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Can Other Blood Glucose Tests Be Used To Diagnose Type 2 Diabetes And Prediabetes
Yes. Health care professionals also use the fasting plasma glucose test and the OGTT to diagnose type 2 diabetes and prediabetes. For these blood glucose tests used to diagnose diabetes, you must fast at least 8 hours before you have your blood drawn. If you have symptoms of diabetes, your doctor may use the random plasma glucose test, which doesnt require fasting. In some cases, health care professionals use the A1C test to help confirm the results of another blood glucose test.
Still Frustrated With Your Blood Sugar And A1c Results
Your blood sugars and your insulin or medication needs never stay in one place. If you gain weight or lose weight, your insulin and medication needs will change. If you become more active or less active, your needs will change. If you make drastic or even small changes to your nutrition, your needs will change!
Working with your diabetes healthcare team, and diabetes coaches who can teach you how to make changes in your overall diabetes management plan are essential. Diabetes is a lifelong learning process.
Take a deep breath and be patient. If you dont like what youre seeing on your glucose meter, dont get madget studying! Take good notes and work with your team to make changes to reach your goals.
Read more about improving your A1c in DiabetesStrongs guide, How to Lower Your A1c.
If you liked this guide to normal blood sugar levels, please sign up for our newsletter using the form below. We send out a weekly newsletter with the latest posts and recipes from Diabetes Strong.
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The 411 On A1c: Normal A1c Levels And 15 Ways To Lower High A1c
The hemoglobin A1C test is the closest thing to a diabetes scorecard you can find. Whether someone has had diabetes mellitus for years or if they have just been diagnosed, they have probably heard about this test. Unlike blood sugar meters people use at home, the A1C measures an average blood sugar level over the past several months by analyzing how many of a patients hemoglobin cells have glucose attached to them. The test results keep track of how well a person is managing his or her diabetes.
Guide To Prediabetes: Symptoms Causes And Treatments
Approximately one in three Americans have prediabetes, according to the CDC. However, the majority of cases go undiagnosed and untreated. Prediabetes is when your blood sugar levels are higher than normal, but not yet high enough to be classified as diabetes. Prediabetes symptoms often go undetected, and without prediabetes treatment, blood vessels and nerves can be damaged. This can lead to heart disease and stroke, and eventually, develop into type 2 diabetes.
Type 2 diabetes, the next stage after prediabetes, is when your body cannot regulate blood sugar levels correctly because you can no longer produce or properly use the hormone insulin. When your body cannot properly use insulin, its known as insulin resistance. Without the proper use of insulin, blood glucose levels can get dangerously high. This is because insulin is a hormone that helps your cells use and process glucose.
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What Is Considered A Normal Blood Sugar Level
The normal blood sugar level for a healthy, non-diabetic adult is determined by when and how blood sugar levels are tested.
The below information describes what normal blood sugar levels are prior to and after meals and what the recommended HbA1c and Haemoglobin A1c levels are for those with and without diabetes.
If you are diabetic, it is advisable to consult with your doctor in order for appropriate blood sugar level targets to be set based on your age, the severity of your condition, medications taken and overall health status.
How To Check Your Own Blood Sugar Level
One way to check ones own sugar level is by pricking a finger with a lancet and placing the blood that comes out onto a test strip, then inserting the strip into a glucose monitor. A meter can tell you what your levels are in about 5 seconds. Another option is by taking an oral glucose tolerance test , which takes longer but may also provide more accurate results. A persons individual level will depend on many factors including how old they are, their ethnicity, their weight and height, and the activity theyve performed recently. Blood sugar levels can be checked by pricking a finger to get a drop of blood and putting it on a glucose meter.
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Translating Your A1c To A Blood Sugar Level
Using this easy calculator from the ADA, you can translate your most recent A1C result to an eAG or estimate average glucose level.
You can also use this translation when working to improve your A1c and achieving closer to normal blood sugar levels. If you know an A1c of 6.5 is an average blood sugar level of 126 mg/dL or a range of 100 to 152 mg/dL, then you can look at your current blood sugar results on your CGM and meter and pinpoint which time of day youre frequently higher than this range.12% = 298 mg/dL or range of 240 347 11% = 269 mg/dL or range of 217 31410% = 240 mg/dL or range of 193 2829% = 212 mg/dL or range of 170 2498% = 183 mg/dL or range of 147 2177% = 154 mg/dL or range of 123 1856% = 126 mg/dL or range of 100 1525% = 97 mg/dL or range of 76 120
Normal blood sugar levels in a person without diabetes can result in an A1c as low as 4.6 or 4.7 percent and as high as 5.6 percent.
Just a decade or two ago, it was rare for a person with type 1 diabetes to achieve an A1c result below 6 percent. Thanks to new and improved insulin and better technology like continuous glucose monitors and smarter insulin pumps, more people with diabetes are able to safely achieve A1c levels in the higher 5 percent range.
Track Your Highs And Lows:
Writing down your results will help you learn how things like meals, activity and medication affect your blood glucose. Is your glucose often low before breakfast? Or after you work out? With time, youll be able to recognize results that are out of range and learn how to spot any patterns.
Taking an active role in your diabetes care empowers you to make the right choices to reach your targets and better manage your diabetes.
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Normal Blood Sugar Levels After Eating For Diabetics
The American Diabetes Association recommends that the blood sugar 1 to 2 hours after the beginning of a meal be less than 180 mg/dl for most nonpregnant adults with diabetes. This is typically the peak, or highest, blood sugar level in someone with diabetes. Again, this target may need to be individualized for certain people based on such factors as duration of diabetes, age and life expectancy, cognitive status, other health conditions, cardiovascular complications, and hypoglycemia unawareness. Its important that people with diabetes discuss their target blood sugar goals with their healthcare provider.
Why The Test Is Performed
Your doctor may order this test if you have signs of diabetes . More than likely, the doctor will order a fasting blood sugar test.
The blood glucose test is also used to monitor people who already have diabetes.
The test may also be done if you have:
- An increase in how often you need to urinate
- Recently gained a lot of weight
- Blurred vision
SCREENING FOR DIABETES
This test may also be used to screen a person for diabetes.
High blood sugar and diabetes may not cause symptoms in the early stages. A fasting blood sugar test is almost always done to screen for diabetes.
If you are over age 45, you should be tested every 3 years.
If you’re overweight and have any of the risk factors below, ask your health care provider about getting tested at an earlier age and more often:
- High blood sugar level on a previous test
- Blood pressure of 140/90 mm Hg or higher, or unhealthy cholesterol levels
- History of heart disease
- Member of a high-risk ethnic group
- Woman who has been diagnosed with gestational diabetes
- Polycystic ovary disease
- Close relative with diabetes
- Not physically active
Children age 10 and older who are overweight and have at least two of the risk factors listed above should be tested for type 2 diabetes every 3 years, even if they have no symptoms.
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What Are Blood Sugar Levels
Your blood sugar levels, also known as blood glucose levels, are a measurement that show how much glucose you have in your blood. Glucose is a sugar that you get from food and drink. Your blood sugar levels go up and down throughout the day and for people living with diabetes these changes are larger and happen more often than in people who don’t have diabetes.
Different Levels And What They Mean
The ranges of safe levels of blood glucose depend on factors such as what time of day it is and when you last ate. Safe levels of blood sugar are high enough to supply your organs with the sugar they need, but low enough to prevent symptoms of hyperglycemia or complications of diabetes which follow the National Institute of Diabetes and Digestive and Kidney Diseases guides. Dangerous levels of blood glucose are outside of this range.
The target levels can also vary if you have diabetes. For example, if you are diabetic and are monitoring your blood sugar, you might get a reading of 65 mg/dl. That is considered to be mild hypoglycemia, and you would be wise to eat 15 grams of fast-acting carbohydrates and retest your blood sugar in 15 minutes.
If you were not diabetic, you probably would not know that your sugar was low because you would not test and because you would not symptoms, and you would not act.
That is fine because your body is capable, under normal circumstances, of raising your blood glucose to healthy levels when needed, even if you have not eaten. It is important to keep them in control to help prevent issues like heart disease or nerve damage.
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How Food Affects Blood Sugar
When you eat food, your body breaks it down into essential parts:
- Carbohydrates
- Fats
- Vitamins and minerals
All parts are necessary in a healthy diet, but the three types of carbohydrates are particularly important when it comes to your blood glucose level. While the general rule is that the more carbohydrates you eat, the higher your blood sugar level, not all three types of carbohydrates convert to blood sugar at the same rate.
The foods that fit into each carb category include:
- Starches, or complex carbohydrates: Starchy vegetables, dried beans, and grains
- Sugars: Fruits, baked goods, beverages, and processed food items like cereals or granola bars
- Fiber: Whole wheat products, chickpeas, lentils, berries, pears, and brussels sprouts
The glycemic index helps you find out which foods can increase or help decrease blood sugar levels. Based on a scale ranging from 0 to 100, high-indexed foods are rapidly digested, absorbed, and metabolized, resulting in marked fluctuations in blood sugar levels, while low-indexed foods produce smaller fluctuations in your blood glucose.
The American Diabetes Association advises adding lean sources of protein and heart-healthy fats to help reduce the overall glycemic impact of a meal or snack.