What causes high INR and low Platelet count?

High INR and low Platelet count can be caused by many reasons.

If your INR is in between 0.9 ratio and 1.2 ratio and your Platelet count is in between 150 thou/uL and 450 thou/uL then you need not worry as these are the normal ranges for INR and Platelet count 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	0.945
5-10 years	0.993
10-15 years	1.043
15-20 years	1.095
20-25 years	1.15
25-30 years	1.147
30-35 years	1.144
35-40 years	1.142
40-45 years	1.199
45-50 years	1.196
50-55 years	1.193
55-60 years	1.19
60-70 years	1.187
70-80 years	1.184
80-90 years	1.181
90-100 years	1.178
>100 years	1.175

*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

1,37,160

Total number of patients treated

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 Platelet count : 150 - 450 thou/uL

Ideal values of Platelet count depending on age :

Age	Ideal Platelet count value
<5 years	157.545
5-10 years	165.47
10-15 years	173.793
15-20 years	182.535
20-25 years	191.717
25-30 years	201.36
30-35 years	211.488
35-40 years	222.126
40-45 years	233.299
45-50 years	245.034
50-55 years	257.359
55-60 years	270.304
60-70 years	283.9
70-80 years	298.18
80-90 years	313.178
90-100 years	328.931
>100 years	345.476

High INR and low Platelet count can be caused by a lot of reasons. If you take INR and Platelet count blood tests and the results are higher than 1.2 ratio for INR and lower than 150 thou/uL for Platelet count, 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 Platelet count Tests Are Done :

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