What causes high INR and low TIBC?

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

If your INR is in between 0.9 ratio and 1.2 ratio and your TIBC is in between 250 mcg/dL and 450 mcg/dL then you need not worry as these are the normal ranges for INR and TIBC 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 INR : 0.9 - 1.2 ratio

Ideal values of INR depending on age :

Age	Ideal INR value
<5 years	0.951
5-10 years	1.005
10-15 years	1.062
15-20 years	1.123
20-25 years	1.187
25-30 years	1.183
30-35 years	1.18
35-40 years	1.176
40-45 years	1.172
45-50 years	1.168
50-55 years	1.164
55-60 years	1.16
60-70 years	1.156
70-80 years	1.152
80-90 years	1.148
90-100 years	1.145
>100 years	1.141

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

If you want your blood test report to be interpreted by INR specialist, then you can upload your report. Our INR 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 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)

If you want your blood test report to be interpreted by INR specialist, you can upload your report. Our INR 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 TIBC : 250 - 450 mcg/dL

Ideal values of TIBC depending on age :

Age	Ideal TIBC value
<5 years	264.275
5-10 years	279.365
10-15 years	295.317
15-20 years	312.18
20-25 years	330.005
25-30 years	348.848
30-35 years	368.767
35-40 years	389.824
40-45 years	412.083
45-50 years	435.613
50-55 years	434.193
55-60 years	432.777
60-70 years	431.366
70-80 years	429.96
80-90 years	428.558
90-100 years	427.161
>100 years	425.768

High INR and low TIBC can be caused by a lot of reasons. If you take INR and TIBC blood tests and the results are higher than 1.2 ratio for INR and lower than 250 mcg/dL for TIBC, 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 INR and TIBC Tests Are Done :

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