Use of glycated haemoglobin in the diagnosis of diabetes mellitus. Each way usually needs to be repeated on a second day to diagnose diabetes.
Who has published several guidelines for the diagnosis of diabetes since 1965 7 10.
Diabetes hba1c diagnosis. The hba1c test also known as the haemoglobin a1c or glycated haemoglobin test is an important blood test that gives a good indication of how well your diabetes is being controlled together with the fasting plasma glucose test the hba1c test is one of the main ways in which type 2 diabetes is diagnosed. A report published in 2009 by an international expert committee on the role of hba1c in the diagnosis of diabetes recommended that hba1c can be used to diagnose diabetes and that the diagnosis can be made if the hba1c level is 65. A rare type of diabetes that can occur in babies called monogenic diabetes can also be mistaken for type 1 diabetes.
The hba1c test should greatly simplify the diagnostic pathway negating the need for oral glucose tolerance tests in the majority of patients. The ngsp formerly called the national glycohemoglobin standardization program certifies that makers of a1c tests provide results that are consistent and comparable with those used in the diabetes control and complications trial. An hba1c of 48 mmolmol 65 or greater has now been recommended in australia for diagnosis of type 2 diabetes.
Hba1c 48 mmolmol can be used to diagnose diabetes in most situations. August 2014 minor update to reflect additional caution of history of pancreatitis for saxagliptin and vildagliptin based on the manufacturers spcs. The potential utility of hba1c in diabetes care is first mentioned in the 1985.
Diabetes uk supports the diagnostic criteria published by the who in 2006. Definition and diagnosis of diabetes mellitus and intermediate hyperglycaemiadiabetes uk also welcomes the 2011 decision by the who to accept the use of hba1c testing in diagnosing diabetes. World health organisation who recommendations.
Treatment depends on the type of diabetes so knowing which type you have is important. To find out if your diabetes is type 1 your health care professional may look for certain autoantibodies. Both diagnosis and classification were reviewed in 1999 and were published as the guidelines for the definition diagnosis and classification of diabetes mellitus1.
When using the a1c test for diagnosis your doctor will send your blood sample taken from a vein to a lab that uses an ngsp certified method. Testing should be carried out in a health care setting such as your doctors office or a lab. Confirm a point of care diabetes diagnosis with laboratory venous hba1c.
In patients without symptoms but with an hba1c 48 mmolmol repeat venous hba1c in the same lab within 2 weeks to confirm result and exclude any samplinganalytical error. Diagnosis should be confirmed with a repeat hba1c test unless clinical symptoms and plasma glucose levels 11. The world health organization who recommendation to use hba1c to confirm the diagnosis of diabetes type 2 has been included.
If your doctor determines that your blood sugar level is very high or if you have classic symptoms of high blood. July 2014 two minor updates. There are several ways to diagnose diabetes.