Is RDW 21.4 high, normal or dangerous? What does Red cell distribution width level 21.4 mean?

RDW 21.4

Your RDW level of 21.4 is a High RDW level.

High RDW levels can be a sign of health issues. The typical range for normal levels is between 11.6 % and 14 %. If your levels fall outside this range, it's important to consult a doctor. Seeking medical advice for abnormal creatinine levels is suggested.

Important - Go to the end of this article and read how our patients treated their high RDW levels 

Contact a doctor

Normal range of RDW found among men :11.6 - 14 %

Ideal values of RDW depending on age (male) :
Age Ideal RDW value
<5 years 11.848
5-10 years 12.102
10-15 years 12.361
15-20 years 12.626
20-25 years 12.896
25-30 years 13.172
30-35 years 13.454
35-40 years 13.742
40-45 years 13.736
45-50 years 13.73
50-55 years 13.724
55-60 years 13.718
60-70 years 13.712
70-80 years 13.705
80-90 years 13.998
90-100 years 13.992
>100 years 13.985

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

Get Advice via Email : Send us your blood test report, and our RDW experts will review it. Within 12 hours, you'll receive a detailed analysis and precise treatment guidance via email. If you have other blood test results besides RDW, please upload those as well. A comprehensive diagnosis often depends on evaluating all abnormalities for an accurate assessment. Upload blood test report now

1,51,150

Total number of patients treated

Important - Read more questions about high RDW levels after this video message 

A video message on the treatment of your high RDW level

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

Important - At the end of this article read how our patients treated their high RDW levels 

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
Contact a doctor

Receive world-class medical opinion about your high RDW levels over email.Upload blood test report now

Important - At the end of this article read how our patients treated their high RDW levels 

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Normal range of RDW found among women :11.6-14 %

Ideal values of RDW depending on age (female) :
Age Ideal RDW value
<5 years 11.856
5-10 years 12.117
10-15 years 12.384
15-20 years 12.657
20-25 years 12.936
25-30 years 13.221
30-35 years 13.512
35-40 years 13.81
40-45 years 13.803
45-50 years 13.796
50-55 years 13.789
55-60 years 13.782
60-70 years 13.776
70-80 years 13.77
80-90 years 13.764
90-100 years 13.757
>100 years 13.75
Chest pain

Can Low or High RDW cause Heart Problems?

Read on to know how abnormal RDW affects heart

Know more

If you take a RDW blood test and the results are not in the normal range (11.6-14 %), your physician may recommend more tests to figure out the problem. You might also get this test if your physician thinks you have some other disease.

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How the RDW Test Is Done :

When your doctor recommends a RDW test, you'll likely undergo a simple blood draw specifically to measure RDW levels. A pathologist, a specialist in disease study, will collect a small blood sample from your veins using a needle. Your RDW test results are typically available within a few hours after the procedure.

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Dr. Dwayne Michaels
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Dr. Dwayne Michaels
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