Imagine that your last hemoglobin A1c result was 5.9. Now it's time for a new test, and the results show that your A1c is 6.1. Does this mean your control has gotten a lot worse?
We have to remember that all these lab tests we get are subject to all kinds of errors. First, they're performed by human beings, and all human beings occasionally make mistakes.
When I was first diagnosed, my hemoglobin A1 (the old test that didn't break down into A1c) was 16. This was equivalent to an A1c of about 13. Obviously not good! I was put on metformin and given the standard dietary advice.
I drastically reduced my food intake, especially starches and sugars, went back for another test in several weeks, and then saw my doctor. He said my A1 hadn't changed. I told him that was impossible. "If it had gone from 16 to 14, I'd believe you, but it's impossible that it hasn't changed when I've changed my diet so much ( read more about dietary changes for diabetes here) . My fastings ...
Read David's first update from the Scientific Sessions here!
San Francisco -- Yesterday I was wearing Band-aids on six of my fingers. I had my A1C tested six times in one day with five different systems. I'm in San Francisco at what is probably the only place in the world
where I could have this bloody experience. It's the annual Scientific
Sessions of the American Diabetes Association. The consistency of the results of these six tests is good news for
people with diabetes. Each of these tests claim to be certified by the National Glycohemoglobin Standardization Program (NGSP) or comparable to it, and the closeness of the results confirm these claims. But my higher numbers from a year ago was bad news for me. At last
year's ADA in Chicago only three booths offered A1C tests. My results
varied from 4.6 with Bayer HealthCare's A1CNow+ to 5.1 with Siemens Healthcare Diagnostics' DCA 2000+ Anaylzer to 5.3 with the Bio-Rad in2it A1C Anaylzer . Those results for a person with typ...
HbA1c is a test that measures the amount of glycated hemoglobin in your blood. Your doctor may order this test if you have diabetes.
Glycated hemoglobin; Glycosylated hemoglobin; Hemoglobin - glycosylated; A1C; GHb; Glycohemoglobin; Diabetic control index
How the test is performed
Blood is drawn from a vein. The vein is usually on the inside of your elbow or the back of your hand. A nurse will clean the site for germs. The nurse then wraps an elastic band around the upper arm. This puts pressure on the area and makes the vein swell with blood.
Next, the needle is gently inserted into your vein. The blood collects into an airtight vial or tube attached to the needle. The elastic band is removed from your arm. Once the blood has been collected, the needle is removed. Then the area is covered to stop any bleeding.
In infants or young children, a sharp tool called a lancet may be used to puncture the skin and make it ble...
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