What causes high RDW SD and low Segmented Neutrophils?

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

If your RDW SD is in between 39 fL and 46 fL and your Segmented Neutrophils is in between 40 % and 80 % then you need not worry as these are the normal ranges for RDW SD and Segmented Neutrophils respectively. But if your levels are lesser or greater than the above values, then there may be some problem in your body.

Some examples of conditions that can increase or decrease RDW SD levels include:

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

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

Normal range of RDW SD : 39 - 46 fL

Ideal values of RDW SD depending on age :

Age	Ideal RDW SD value
<5 years	39.667
5-10 years	40.346
10-15 years	41.036
15-20 years	41.738
20-25 years	42.452
25-30 years	43.178
30-35 years	43.917
35-40 years	44.668
40-45 years	45.432
45-50 years	45.418
50-55 years	45.405
55-60 years	45.392
60-70 years	45.379
70-80 years	45.365
80-90 years	45.352
90-100 years	45.339
>100 years	45.326

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

Normal range of Segmented Neutrophils : 40 - 80 %

Ideal values of Segmented Neutrophils depending on age :

Age	Ideal Segmented Neutrophils value
<5 years	40.684
5-10 years	41.38
10-15 years	42.088
15-20 years	42.808
20-25 years	43.54
25-30 years	44.285
30-35 years	45.043
35-40 years	45.814
40-45 years	46.598
45-50 years	47.395
50-55 years	48.206
55-60 years	49.031
60-70 years	49.87
70-80 years	50.723
80-90 years	51.591
90-100 years	52.474
>100 years	53.372

High RDW SD and low Segmented Neutrophils can be caused by a lot of reasons. If you take RDW SD and Segmented Neutrophils blood tests and the results are higher than 46 fL for RDW SD and lower than 40 % for Segmented Neutrophils, 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 SD and Segmented Neutrophils Tests Are Done :

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

Medical References

• MedlinePlus – RDW (Red Cell Distribution Width)
• Cleveland Clinic – RDW Blood Test: What It Is, Procedure & Results
• NIH – RDW-SD is Superior to RDW-CV in Reflecting Liver Fibrosis Stage in Patients with Chronic Hepatitis B