Science Fair Project Encyclopedia
The HbA1c level is proportional to average blood glucose concentration over the previous two to four weeks (it was previously thought to average over approximately three months). The mapping between HbA1c and blood glucose average is shown in the table below.
|A1C (%)||Avg. Blood Sugar (mg/dl)|
Endocrinologists currently believe that HbA1c values below 6.5% (American College of Endocrinology: The AACE System of Intensive Diabetes Self-Management — 2002 Update) are acceptable and indicate good control; normal is 3-6%. Interpreting results is somewhat difficult because (1) laboratory results can differ depending on the analytical technique and (2) biological variation between individuals can be up to 1% (i.e. two individuals with the same average blood sugar can have A1C values that differ by up to 1%).
The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details