What causes high RDW and low Ferritin?

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

If your RDW is in between 11.6 % and 14 % and your Ferritin is in between 22 ng/mL and 322 ng/mL then you need not worry as these are the normal ranges for RDW and Ferritin 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	11.868
5-10 years	12.142
10-15 years	12.422
15-20 years	12.709
20-25 years	13.003
25-30 years	13.303
30-35 years	13.61
35-40 years	13.924
40-45 years	13.917
45-50 years	13.909
50-55 years	13.901
55-60 years	13.893
60-70 years	13.886
70-80 years	13.879
80-90 years	13.872
90-100 years	13.864
>100 years	13.856

*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 Ferritin : 22 - 322 ng/mL

Ideal values of Ferritin depending on age :

Age	Ideal Ferritin value
<5 years	22.508
5-10 years	23.028
10-15 years	23.56
15-20 years	24.104
20-25 years	24.661
25-30 years	25.231
30-35 years	25.814
35-40 years	26.41
40-45 years	27.02
45-50 years	27.644
50-55 years	28.283
55-60 years	28.936
60-70 years	29.604
70-80 years	30.288
80-90 years	30.988
90-100 years	31.704
>100 years	32.436

High RDW and low Ferritin can be caused by a lot of reasons. If you take RDW and Ferritin blood tests and the results are higher than 14 % for RDW and lower than 22 ng/mL for Ferritin, 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 Ferritin Tests Are Done :

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