What causes high RBC and low RDW SD?

High RBC and low RDW SD can be caused by many reasons.

If your RBC is in between 4.5 mil/uL and 5.5 mil/uL and your RDW SD is in between 39 fL and 46 fL then you need not worry as these are the normal ranges for RBC and RDW SD 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 4.545
5-10 years 4.59
10-15 years 4.636
15-20 years 4.682
20-25 years 4.729
25-30 years 4.776
30-35 years 4.824
35-40 years 4.872
40-45 years 4.921
45-50 years 4.97
50-55 years 5.02
55-60 years 5.07
60-70 years 5.121
70-80 years 5.172
80-90 years 5.224
90-100 years 5.276
>100 years 5.329

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

Your RBC result may be wrong. Click to know the reason in detail

Click here to know Symptoms of High RBC

Click here to know Symptoms of Low RDW SD

Besides Lab test failures, there are many other reasons for inaccurate blood results. Know the common reasons for inaccurate blood test results

Can Low or High RBC cause Heart Attack? Click here to know

Normal range of RBC found among women : - mil/uL

Ideal values of RDW SD depending on age :
Age Ideal RDW SD value
<5 years 39.39
5-10 years 39.784
10-15 years 40.182
15-20 years 40.584
20-25 years 40.99
25-30 years 41.4
30-35 years 41.814
35-40 years 42.232
40-45 years 42.654
45-50 years 43.081
50-55 years 43.512
55-60 years 43.947
60-70 years 44.386
70-80 years 44.83
80-90 years 45.278
90-100 years 45.731
>100 years 45.726

Click here to know Symptoms of High RBC

Click here to know Symptoms of Low RDW SD

Can Low or High RBC cause Heart Attack? Click here to know

Click here to upload your blood test report

Click here to consult a doctor for your Low RBC problem

High RBC and low RDW SD can be caused by a lot of reasons. If you take RBC and RDW SD blood tests and the results are higher than 5.5 mil/uL for RBC and lower than 39 fL for RDW SD, 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 RDW SD Tests Are Done :

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

Click here to upload your blood test report

Click here to consult a doctor for your Low RBC problem

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