What causes high GGT and low BUN?

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

If your GGT is in between 15 U/L and 85 U/L and your BUN is in between 6 mg/dL and 20 mg/dL then you need not worry as these are the normal ranges for GGT and BUN 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	15.261
5-10 years	15.527
10-15 years	15.797
15-20 years	16.072
20-25 years	16.352
25-30 years	16.637
30-35 years	16.927
35-40 years	17.222
40-45 years	17.522
45-50 years	17.827
50-55 years	18.137
55-60 years	18.453
60-70 years	18.774
70-80 years	19.101
80-90 years	19.434
90-100 years	19.772
>100 years	20.116

*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 BUN : 6 - 20 mg/dL

Ideal values of BUN depending on age :

Age	Ideal BUN value
<5 years	6.104
5-10 years	6.21
10-15 years	6.318
15-20 years	6.428
20-25 years	6.54
25-30 years	6.654
30-35 years	6.77
35-40 years	6.888
40-45 years	7.008
45-50 years	7.13
50-55 years	7.254
55-60 years	7.38
60-70 years	7.508
70-80 years	7.639
80-90 years	7.772
90-100 years	7.907
>100 years	8.045

High GGT and low BUN can be caused by a lot of reasons. If you take GGT and BUN blood tests and the results are higher than 85 U/L for GGT and lower than 6 mg/dL for BUN, 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 BUN Tests Are Done :

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