What causes high INR and low RDW CV?

High INR and low RDW CV can be caused by many reasons.

If your INR is in between 0.9 ratio and 1.2 ratio and your RDW CV is in between 11.6 % and 14 % then you need not worry as these are the normal ranges for INR and RDW CV 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	0.951
5-10 years	1.005
10-15 years	1.062
15-20 years	1.122
20-25 years	1.186
25-30 years	1.182
30-35 years	1.178
35-40 years	1.174
40-45 years	1.17
45-50 years	1.167
50-55 years	1.163
55-60 years	1.159
60-70 years	1.155
70-80 years	1.152
80-90 years	1.149
90-100 years	1.145
>100 years	1.141

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

Normal range of RDW CV : 11.6 - 14 %

Ideal values of RDW CV depending on age :

Age	Ideal RDW CV value
<5 years	12.26
5-10 years	12.958
10-15 years	13.695
15-20 years	13.65
20-25 years	13.606
25-30 years	13.562
30-35 years	13.518
35-40 years	13.474
40-45 years	13.431
45-50 years	13.387
50-55 years	13.344
55-60 years	13.301
60-70 years	13.258
70-80 years	13.215
80-90 years	13.967
90-100 years	13.922
>100 years	13.877

High INR and low RDW CV can be caused by a lot of reasons. If you take INR and RDW CV blood tests and the results are higher than 1.2 ratio for INR and lower than 11.6 % for RDW CV, 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 RDW CV Tests Are Done :

If your doctor wants INR and RDW CV tests on you, you may need to go through these tests. During the INR and RDW CV 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 RDW CV 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