Fasting Blood Sugar & A1C

Q: Hello,

Thank you for addressing my question!

I have done a few home fasting glucose tests after many evenings of going to the bathroom and came out with different numbers each time. One morning it was 121, the next morning 97, another 105, and this morning 80. Here's my question, when I have my cholesterol and thyroid test done this week they will be doing an A1C. With the numbers up and down, will this one test be able to determine if I'm pre-diabetic or not? My test will be at 9:45 am after an evening fast. I know an A1C gives an average, however if there isn't any previous A1C, what do they compare this one to? I'm thinking if I'm running under 100 the day of the test, how can the test determine weather or not my sugar was elevated on the two previous occasions.

Thanks,
M.

A: M., What great questions!

Lets start with the fasting glucose readings you have done. Normal is generally 70-100. Prediabetes is occuring when fasting numbers are between 100-126. Diabetes is diagnosed when fasting numbers are above 126 on two occasions. You and your physician will talk about your fasting readings, your AIC test and together will decide about a diagnosis of prediabetes and what kind of treatment you may need. There are options of exercise, diet changes and medications.

You are right, the AIC test is an average of all your glucose readings. It is an average of the readings over the past 3 months. The results are given in a percent, with 4-6% being normal. The test is looking at how much of the red blood cells are coated with sugar or glucose. The higher the average glucose has been, the greater the percent of the red blood cell membrane is coated in glucose. In addition to the AIC percent reading, the tests are now coming with a calculated average glucose reading too. Here is an example:

Your AIC is 4.4%. That means only 4.4% of each red blood cell membrane is coated in sugar or glucose. That is a very normal amount. To find your average glucose reading with a AIC of 4.4%, we multiple the AIC by 28.7 which equals 126.28. Now we subtract 46.7 which equals 79.58, which means that over the past 3 months, your average glucose readings were 79. Each day the readings may change a little, but if there isn't a diagnosis of Diabetes, the swings are usually very small.

Please take care and be sure and discuss your test results throughly with your physician, ginny

Agent Orange & Diabetes

Q:ginny,

my diabetes has been determined to be related to my exposure to agent orange in Viet-Nam.... My treatment consists of Metformin, glypicide and of course, exercise, a controlled diet, and closely monitering my blood sugar..

What is my long term prognosis if I closely follow my treatment program?

My concern is,,,,,, Will a committment to such treatment be effective if agent orange is the cause of diabetes or will agent orange demand different treatment?

A: J., There are no guarantees with any treatment, but whatever you do to keep your blood sugars in the normal range, keep your lipids in the normal range and your blood pressure normal will give you the best chance for a healthy life. I do not know how agent orange is thought to affect human bodies in regards to diabetes, but I will begin to check. Give me a chance to check with an endocrinologist and get more information to you.

It is sometimes difficult to control blood sugars, blood pressure and blood cholesterols but the treatment of medications, a healthy diet and exercise will help with all of them.

I will post any information about agent orange as soon as I can. Please take care, ginny

Q:Thank you Ginny,

I only asked my questions inregards to agent orange because I have no known diabetes history in my family and all treatment for diabetes seems to be the same without regard to causation..... this seems peculiar to me for I believe there are some health issues that treatment is somewhat different when considering the cause of the illness...

It just seems the medical profession is only treating the symptoms of diabetes and not the particular cause suffered by individual cases..

But........ I must admit to harboring some anger at having this darn disease and I have no choice but to endure it and am the last person qualified to tell my doctor what to do...

Thank you again for your response and I look forward to hearing from you again...

J.