What causes high INR and low GGT?

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

If your INR is in between 0.9 ratio and 1.2 ratio and your GGT is in between 15 U/L and 85 U/L then you need not worry as these are the normal ranges for INR and GGT respectively. But if your levels are lesser or greater than the above values, then there may be some problem in your body.

Some examples of conditions that can increase or decrease INR levels include:

• Liver disease
• Vitamin K abnormality
• Decreased or defective factor I (fibrinogen), II (prothrombin), V or X
• Hemophilia A and hemophilia B
• Autoantibody against a specific factor (e.g., factor VIII)

Normal range of INR : 0.9 - 1.2 ratio

Ideal values of INR depending on age :

Age	Ideal INR value
<5 years	0.948
5-10 years	0.998
10-15 years	1.051
15-20 years	1.107
20-25 years	1.166
25-30 years	1.163
30-35 years	1.16
35-40 years	1.156
40-45 years	1.153
45-50 years	1.15
50-55 years	1.147
55-60 years	1.144
60-70 years	1.141
70-80 years	1.137
80-90 years	1.197
90-100 years	1.193
>100 years	1.19

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

Normal range of GGT : 15 - 85 U/L

Ideal values of GGT depending on age :

Age	Ideal GGT value
<5 years	15.794
5-10 years	16.63
10-15 years	17.51
15-20 years	18.436
20-25 years	19.411
25-30 years	20.438
30-35 years	21.519
35-40 years	22.657
40-45 years	23.856
45-50 years	25.118
50-55 years	26.447
55-60 years	27.846
60-70 years	29.319
70-80 years	30.87
80-90 years	32.503
90-100 years	34.222
>100 years	36.032

High INR and low GGT can be caused by a lot of reasons. If you take INR and GGT blood tests and the results are higher than 1.2 ratio for INR and lower than 15 U/L for GGT, 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.

This page has got the maximum number of views from the below mentioned cities (traffic in last 30 days):

How the INR and GGT Tests Are Done :

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

Medical References

• MedlinePlus – Prothrombin Time Test and INR (PT/INR)
• Mayo Clinic – Prothrombin time test
• Cleveland Clinic – Prothrombin Time (PT/INR) Test