What causes high RDW and low Packed cell volume?

High RDW and low Packed cell volume can be caused by many reasons.

If your RDW is in between 11.6 % and 14 % and your Packed cell volume is in between 41 % and 49.5 % then you need not worry as these are the normal ranges for RDW and Packed cell volume 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	11.904
5-10 years	12.216
10-15 years	12.536
15-20 years	12.864
20-25 years	13.201
25-30 years	13.547
30-35 years	13.902
35-40 years	13.892
40-45 years	13.882
45-50 years	13.873
50-55 years	13.863
55-60 years	13.853
60-70 years	13.844
70-80 years	13.835
80-90 years	13.825
90-100 years	13.815
>100 years	13.806

*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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RDW treatment - Click to read 10 GOLDEN ARTICLES on Anemia

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 Packed cell volume : 41 - 49.5 %

Ideal values of Packed cell volume depending on age :

Age	Ideal Packed cell volume value
<5 years	42.074
5-10 years	43.176
10-15 years	44.307
15-20 years	45.468
20-25 years	46.659
25-30 years	47.881
30-35 years	49.135
35-40 years	49.101
40-45 years	49.067
45-50 years	49.034
50-55 years	49.001
55-60 years	48.968
60-70 years	48.934
70-80 years	48.9
80-90 years	48.866
90-100 years	48.832
>100 years	48.798

High RDW and low Packed cell volume can be caused by a lot of reasons. If you take RDW and Packed cell volume blood tests and the results are higher than 14 % for RDW and lower than 41 % for Packed cell volume, 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 Packed cell volume Tests Are Done :

If your doctor wants RDW and Packed cell volume tests on you, you may need to go through these tests. During the RDW and Packed cell volume 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 Packed cell volume 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