What causes high GGT and low Bilirubin direct?

High GGT and low Bilirubin direct can be caused by many reasons.

If your GGT is in between 15 U/L and 85 U/L and your Bilirubin direct is in between 0.1 mg/dL and 0.2 mg/dL then you need not worry as these are the normal ranges for GGT and Bilirubin direct 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	15.787
15-20 years	16.059
20-25 years	16.335
25-30 years	16.616
30-35 years	16.902
35-40 years	17.193
40-45 years	17.489
45-50 years	17.79
50-55 years	18.096
55-60 years	18.407
60-70 years	18.724
70-80 years	19.046
80-90 years	19.374
90-100 years	19.707
>100 years	20.046

*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 Bilirubin direct : 0.1 - 0.2 mg/dL

Ideal values of Bilirubin direct depending on age :

Age	Ideal Bilirubin direct value
<5 years	0.11189
5-10 years	0.11381
10-15 years	0.11577
15-20 years	0.11776
20-25 years	0.11979
25-30 years	0.12185
30-35 years	0.12395
35-40 years	0.12608
40-45 years	0.12825
45-50 years	0.13046
50-55 years	0.1327
55-60 years	0.13498
60-70 years	0.1373
70-80 years	0.13966
80-90 years	0.14206
90-100 years	0.1445
>100 years	0.14699

High GGT and low Bilirubin direct can be caused by a lot of reasons. If you take GGT and Bilirubin direct blood tests and the results are higher than 85 U/L for GGT and lower than 0.1 mg/dL for Bilirubin direct, 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 Bilirubin direct Tests Are Done :

If your doctor wants GGT and Bilirubin direct tests on you, you may need to go through these tests. During the GGT and Bilirubin direct 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 Bilirubin direct 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