What causes high RDW and low PCV?

High RDW and low PCV can be caused by many reasons.

If your RDW is in between 11.6 % and 14 % and your PCV is in between 39 % and 51 % then you need not worry as these are the normal ranges for RDW and PCV 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 RDW : 11.6 - 14 %

Ideal values of RDW depending on age :

Age	Ideal RDW value
<5 years	11.898
5-10 years	12.204
10-15 years	12.518
15-20 years	12.84
20-25 years	13.17
25-30 years	13.508
30-35 years	13.855
35-40 years	13.846
40-45 years	13.837
45-50 years	13.828
50-55 years	13.818
55-60 years	13.809
60-70 years	13.8
70-80 years	13.791
80-90 years	13.781
90-100 years	13.772
>100 years	13.763

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

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

• Crohn's disease
• Chronic liver disease
• Thalassemia, an inherited blood disorder
• An iron or vitamin deficiency
• Heart disease

If you want your blood test report to be interpreted by RDW specialist, you can upload your report. Our RDW 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 PCV : 39 - 51 %

Ideal values of PCV depending on age :

Age	Ideal PCV value
<5 years	40.002
5-10 years	41.03
10-15 years	42.084
15-20 years	43.166
20-25 years	44.275
25-30 years	45.413
30-35 years	46.58
35-40 years	47.777
40-45 years	49.005
45-50 years	50.264
50-55 years	50.231
55-60 years	50.198
60-70 years	50.165
70-80 years	50.132
80-90 years	50.099
90-100 years	50.066
>100 years	50.033

High RDW and low PCV can be caused by a lot of reasons. If you take RDW and PCV blood tests and the results are higher than 14 % for RDW and lower than 39 % for PCV, 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 RDW and PCV Tests Are Done :

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

Medical References

• Cleveland Clinic – RDW Blood Test: What It Is, Procedure & Results
• MedlinePlus – RDW (Red Cell Distribution Width)
• NIH – High red blood cell distribution width is closely associated with risk of carotid artery atherosclerosis