What causes high GGT and low HbA1c?

High GGT and low HbA1c can be caused by many reasons.

If your GGT is in between 15 U/L and 85 U/L and your HbA1c is in between 4 % and 5.7 % then you need not worry as these are the normal ranges for GGT and HbA1c 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 GGT : 15 - 85 U/L

Ideal values of GGT depending on age :

Age	Ideal GGT value
<5 years	15.258
5-10 years	15.52
10-15 years	15.786
15-20 years	16.057
20-25 years	16.333
25-30 years	16.613
30-35 years	16.898
35-40 years	17.188
40-45 years	17.483
45-50 years	17.783
50-55 years	18.088
55-60 years	18.399
60-70 years	18.715
70-80 years	19.036
80-90 years	19.363
90-100 years	19.695
>100 years	20.033

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

If you want your blood test report to be interpreted by GGT specialist, then you can upload your report. Our GGT 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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Some examples of conditions that increase or decrease GGT levels include:

• Blockage of the bile ducts.
• Cardiovascular disease
• Liver diseases
• Alcohol abuse
• Congestive heart failure

If you want your blood test report to be interpreted by GGT specialist, you can upload your report. Our GGT 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 HbA1c : 4 - 5.7 %

Ideal values of HbA1c depending on age :

Age	Ideal HbA1c value
<5 years	4.069
5-10 years	4.139
10-15 years	4.21
15-20 years	4.282
20-25 years	4.356
25-30 years	4.431
30-35 years	4.507
35-40 years	4.584
40-45 years	4.663
45-50 years	4.743
50-55 years	4.824
55-60 years	4.907
60-70 years	4.991
70-80 years	5.077
80-90 years	5.164
90-100 years	5.253
>100 years	5.343

High GGT and low HbA1c can be caused by a lot of reasons. If you take GGT and HbA1c blood tests and the results are higher than 85 U/L for GGT and lower than 4 % for HbA1c, 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 GGT and HbA1c Tests Are Done :

If your doctor wants GGT and HbA1c tests on you, you may need to go through these tests. During the GGT and HbA1c 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 GGT and HbA1c Test reports by your pathologist.

Medical References

• MedlinePlus – Gamma-glutamyl Transferase (GGT) Test
• Cleveland Clinic – Gamma-Glutamyl Transferase (GGT) Test: What It Is & Results
• WebMD – Gamma-Glutamyl Transpeptidase (GGT) Test