What causes high RBC and low INR?

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

If your RBC is in between 4.5 mil/uL and 5.5 mil/uL and your INR is in between 0.9 ratio and 1.2 ratio then you need not worry as these are the normal ranges for RBC and INR 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 RBC : 4.5 - 5.5 mil/uL

Ideal values of RBC depending on age :

Age	Ideal RBC value
<5 years	4.547
5-10 years	4.594
10-15 years	4.642
15-20 years	4.69
20-25 years	4.739
25-30 years	4.788
30-35 years	4.838
35-40 years	4.888
40-45 years	4.939
45-50 years	4.99
50-55 years	5.042
55-60 years	5.094
60-70 years	5.147
70-80 years	5.201
80-90 years	5.255
90-100 years	5.31
>100 years	5.365

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

If you want your blood test report to be interpreted by RBC specialist, then you can upload your report. Our RBC 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 RBC levels include:

• Sudden (acute) or chronic bleeding from the digestive tract
• Kidney failure—severe and chronic kidney diseases lead to decreased production of erythropoietin
• Bone marrow damage
• Conditions that cause red blood cells to be destroyed, such as hemolytic anemia caused by autoimmunity or defects in the red cell itself
• Chronic bleeding from the digestive tract

If you want your blood test report to be interpreted by RBC specialist, you can upload your report. Our RBC 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 INR : 0.9 - 1.2 ratio

Ideal values of INR depending on age :

Age	Ideal INR value
<5 years	0.909
5-10 years	0.918
10-15 years	0.928
15-20 years	0.938
20-25 years	0.948
25-30 years	0.958
30-35 years	0.968
35-40 years	0.978
40-45 years	0.988
45-50 years	0.998
50-55 years	1.008
55-60 years	1.018
60-70 years	1.029
70-80 years	1.04
80-90 years	1.051
90-100 years	1.062
>100 years	1.073

High RBC and low INR can be caused by a lot of reasons. If you take RBC and INR blood tests and the results are higher than 5.5 mil/uL for RBC and lower than 0.9 ratio for INR, 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 RBC and INR Tests Are Done :

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