About Hemoglobin A1c Test
Learn about the disease, illness and/or condition Hemoglobin A1c Test including: symptoms, causes, treatments, contraindications and conditions at ClusterMed.info.
Hemoglobin A1c Test
Hemoglobin A1c Test |
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Hemoglobin A1c Test InformationHemoglobin A1c conversion chart (HbA1c chart)While there are no guidelines to use hemoglobin A1c test levels as a screening tool, it gives a health-care professional a good idea that someone may be have diabetes if the value is elevated; however, it is used as a standard tool to determine blood sugar control in patients known to have diabetes.The correlation between hemoglobin A1c levels and average blood sugar levels is presented in the following conversion chart:A1c(%)Mean blood sugar (mg/dl)6135717082059240102751131012345The American Diabetes Association currently recommends an A1c goal of less than 7.0%, while other groups such as the American Association of Clinical Endocrinologists recommend a goal of less than 6.5%.Studies have shown there is a 10% decrease in relative risk for microvascular complications for every 1% reduction in hemoglobin A1c. So, if a person with diabetes has an initial hemoglobin A1c level of 10.7 and drops to 8.2, though they are not yet at goal (about 6.5%), they have managed to decrease their risk of microvascular complications by about 20%. The closer to normal the hemoglobin A1c, the lower the absolute risk for microvascular complications. Hemoglobin A1c definition and facts
How often does a person with diabetes need to have their hemoglobin A1c levels checked?The American Diabetes Association (ADA) suggests if people with diabetes want to reduce their hemoglobin A1c levels quickly, they should get their hemoglobin A1c levels checked every three months until they reach their treatment goals.People with diabetes who are meeting treatment goals and have stable blood control are recommended to check their hemoglobin A1c every six months according to the ADA.Tracking hemoglobin A1c levels allows an individual and their health-care professional to determine how well the person is controlling their blood sugar (glucose) levels over time. However, they are not a substitute for daily glucose monitoring. What are normal and elevated ranges for hemoglobin A1c?
What is a hemoglobin A1c?To explain what hemoglobin A1c is, think in simple terms. Sugar sticks to things, and when it has been stuck to something for a long time it's harder to the get sugar (glucose) off. In the body, sugar sticks too, particularly to proteins. The red blood cells that circulate in the body live for about three months before they die. When sugar (glucose) sticks to these red blood cells by binding to hemoglobin A1c, it gives us an idea of how much glucose has been around in the blood for the preceding three months. Hemoglobin A1c is a minor component of hemoglobin to which glucose binds. Hemoglobin A1c levels depend on blood glucose concentrations. The higher the sugar concentration in the blood, the higher the detectable hemoglobin A1c levels. At any point in time, hemoglobin A1c levels represent the average blood sugar concentrations in the person with diabetes for approximately the preceding 3 months. What makes a person's hemoglobin A1c levels high or low?Hemoglobin A1c levels can be altered by
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