What causes high HbA1c and low FT3 thyroid?

High HbA1c and low FT3 thyroid can be caused by many reasons.

If your HbA1c is in between 4 % and 5.7 % and your FT3 thyroid is in between 2.3 pg/mL and 4.2 pg/mL then you need not worry as these are the normal ranges for HbA1c and FT3 thyroid respectively. But if your levels are lesser or greater than the above values, then there may be some problem in your body.

Normal range of HbA1c : 4 - 5.7 %

Ideal values of HbA1c depending on age :

Age	Ideal HbA1c value
<5 years	4.396
5-10 years	4.831
10-15 years	5.309
15-20 years	5.257
20-25 years	5.205
25-30 years	5.154
30-35 years	5.664
35-40 years	5.609
40-45 years	5.554
45-50 years	5.5
50-55 years	5.447
55-60 years	5.393
60-70 years	5.34
70-80 years	5.288
80-90 years	5.237
90-100 years	5.185
>100 years	5.698

*Ideal values are calculated based on our database of patient records

If you want your blood test report to be interpreted by HbA1c specialist, then you can upload your report. Our HbA1c expert will provide you with the most accurate interpretation of your blood test results and treatment within 12 hours. Upload blood test report now

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HbA1c treatment - Click to read 10 GOLDEN ARTICLES on Diabetes

Long-term complications of diabetes develop gradually. The longer you have diabetes the higher the risk of complications. Eventually, diabetes complications may be disabling or even life-threatening. Possible complications include:

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If you want your blood test report to be interpreted by HbA1c specialist, you can upload your report. Our HbA1c expert will provide you with the most accurate interpretation of your blood test results and treatment within 12 hours. Upload blood test report now

Normal range of FT3 thyroid : 2.3 - 4.2 pg/mL

Ideal values of FT3 thyroid depending on age :

Age	Ideal FT3 thyroid value
<5 years	2.528
5-10 years	2.778
10-15 years	3.053
15-20 years	3.355
20-25 years	3.687
25-30 years	4.052
30-35 years	4.012
35-40 years	3.973
40-45 years	3.934
45-50 years	3.895
50-55 years	3.857
55-60 years	3.819
60-70 years	4.197
70-80 years	4.156
80-90 years	4.115
90-100 years	4.074
>100 years	4.034

High HbA1c and low FT3 thyroid can be caused by a lot of reasons. If you take HbA1c and FT3 thyroid blood tests and the results are higher than 5.7 % for HbA1c and lower than 2.3 pg/mL for FT3 thyroid, your physician may recommend more tests to figure out the problem. You might also get these tests if your physician thinks you have some other disease.

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How the HbA1c and FT3 thyroid Tests Are Done :

If your doctor wants HbA1c and FT3 thyroid tests on you, you may need to go through these tests. During the HbA1c and FT3 thyroid blood tests, a pathologist will put a needle into your veins and take out a small quantity of blood. A pathologist is a physician in the medical field who thoroughly studies the causes and effects of disease. Within a few hours you will get your HbA1c and FT3 thyroid Test reports by your pathologist.