The glycosylated hemoglobin test (HbA1c) is a blood test for type 2 diabetes and prediabetes. It measures the average level of glucose or blood sugar over the past three months. Doctors may use the HbA1c test alone or in combination with other diabetes tests to make a diagnosis.
They also use HbA1c to see how well you’re managing your diabetes. This test is different from blood sugar checks that people with diabetes do every day.
The result of your HbA1c test is delivered in percentages. The higher the percentage, the higher your blood sugar level:
What does the HbA1c test measure?
The A1c test, also known as the A1c or HbA1c hemoglobin test, is a simple blood test that measures the average blood sugar levels for the past three months
Hba1c blood test results and meaning of numbers, hba1c range
How is the HbA1c blood test performed?
What happens during an HbA1c test? A doctor or health care professional takes a blood sample from a vein in one arm using a small needle. After inserting the needle, draw a small amount of blood and place it in a test tube or bottle.
How many hours of fasting for glycosylated hemoglobin blood analysis?
This test requires a previous fasting period of no less than 8 hours and no more than 16 hours. You can drink water.
What to do if I have hemoglobin Hba1c high?
For slightly elevated levels of hemoglobin in the blood should: Quit smoking. Eat a healthy and balanced diet that allows you to have an adequate weight and with an appropriate consumption of water and liquids. Try to reduce stress.
Is the A1C blood test used during pregnancy?
Health care professionals can use the A1C test early in pregnancy to determine if a woman with risk factors had undiagnosed diabetes before becoming pregnant.
Because the A1C test reflects average blood glucose levels over the past 3 months, early pregnancy tests may include levels that reflect the period before the woman became pregnant. The glucose screening test or oral glucose tolerance test is used to control gestational diabetes, usually between 24 and 28 weeks of pregnancy.
If a woman has gestational diabetes, she should be tested for diabetes no later than 12 weeks after her baby is born. If the blood glucose level is still high, a woman may have type 2 diabetes. Even if the blood glucose level is normal, a woman is even more likely to develop type 2 diabetes in the future and should be tested every 3 years.
6 The Best Tips for Lower A1C Levels
Lowering A1C levels doesn’t have to be difficult. Here are several ways to reduce A1C and that are easy to incorporate into daily life.
Is it possible that the A1C test results in a different diagnosis than blood glucose tests?
Yes. In some people, a blood glucose test may indicate diabetes when an A1C test doesn’t. The opposite may also happen: an A1C test may indicate diabetes even though a blood glucose test does not.
Because of these differences in test results, health care professionals repeat the tests before making a diagnosis.
People who get different test results may be at an early stage of the disease, when blood glucose levels have not risen enough for them to appear on all tests.
In this case, health care professionals may choose to follow up closely with the person and repeat the test in several months.
How accurate is the A1C test?
When repeated, the A1C test result may be slightly higher or lower than the first measurement. This means, for example, that the result of an A1C test indicated as 6.8 percent could be indicated in a range of 6.4 to 7.2 percent in a repeated test of the same blood sample.3 Previously, this range was broader, but newer and stricter quality control standards involve more accurate A1C test results.
Health care professionals can visit the www.ngsp.org find information about the accuracy of the A1C test used by the lab they use.
How is the A1C test used after a diagnosis of diabetes?
Health care professionals can use the A1C test on a person to set treatment goals, modify therapy, and monitor diabetes control.
Experts recommend that people with diabetes get an A1C test at least twice a year.4 Health professionals can take the A1C test more often if treatment goals are not being met.
What A1C goal should a person have?
People will have different HbA1C goals, depending on their diabetes history and their overall health. People should determine their A1C goals by consultation with health professionals.
Studies have shown that some people with diabetes may reduce the risk of diabetes complications by keeping A1C levels below 7 percent.
Controlling blood glucose early in the course of diabetes can provide benefits for many years to come. However, an A1C level that is safe for one person may not be safe for another.
For example, keeping an HbA1C level in your blood below 7 percent may not be safe if it leads to problems with hypoglycemia, also called low blood glucose.
Less stringent blood glucose control, or an A1C Hbbetween 7 and 8 percent or even higher in some circumstances, may be appropriate in people who have
limited life expectancy
diabetes for a long time and difficulty reaching a lower level
severe hypoglycemia or inability to detect hypoglycemia (also called inadvertent hypoglycemia)
complications of advanced diabetes, such as chronic kidney disease, nervous system problems or cardiovascular disease
How often should the Hba1c blood test be performed?
If you have diabetes, you should undergo the HbA1c blood test at least twice a year. For many people with diabetes, the HbA1c target is less than seven. It may be different for you.
See what your goal should be. If your HbA1c result is too high, you may need to change your diabetes care plan.