Is INR 3.8 high, normal or dangerous? What does INR level 3.8 mean?

Your INR level of 3.8 is a High INR level.

High INR levels may indicate underlying health problems. The normal range is typically between 0.9 ratio and 1.2 ratio. If your levels are outside this range, it's important to speak with a healthcare provider. Consulting a doctor is recommended to determine the cause and appropriate next steps.

The normal INR range for men is :0.9 - 1.2 ratio

Ideal values of INR depending on age (male) :

Age	Ideal INR value
<5 years	0.934
5-10 years	0.969
10-15 years	1.006
15-20 years	1.044
20-25 years	1.084
25-30 years	1.125
30-35 years	1.168
35-40 years	1.166
40-45 years	1.164
45-50 years	1.162
50-55 years	1.16
55-60 years	1.158
60-70 years	1.156
70-80 years	1.2
80-90 years	1.199
90-100 years	1.198
>100 years	1.197

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

Get Advice via Email : Send us your blood test report, and our INR experts will review it. You'll receive a detailed analysis and personalized treatment guidance via email within 12 hours. If you have additional blood test results besides INR, please include those too—an accurate diagnosis often requires a full view of all abnormalities. 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)

Receive world-class medical opinion about your high INR levels over email.Upload blood test report now

Normal range of INR found among women :0.9-1.2 ratio

Ideal values of INR depending on age (female) :

Age	Ideal INR value
<5 years	0.935
5-10 years	0.972
10-15 years	1.01
15-20 years	1.05
20-25 years	1.091
25-30 years	1.134
30-35 years	1.178
35-40 years	1.176
40-45 years	1.174
45-50 years	1.172
50-55 years	1.17
55-60 years	1.168
60-70 years	1.166
70-80 years	1.165
80-90 years	1.164
90-100 years	1.163
>100 years	1.162

If you take a INR blood test and the results are not in the normal range (0.9-1.2 ratio), your physician may recommend more tests to figure out the problem. You might also get this test if your physician thinks you have some other disease.

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How the INR Test Is Done :

When your doctor orders a INR test, it involves a straightforward blood draw to measure your INR levels. A pathologist or lab technician will take a small sample of blood from a vein using a needle. Your INR test results are usually available within a few hours.