What causes high ESR and low RDW SD?

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

If your ESR is in between 0.1 mm/hr and 14 mm/hr and your RDW SD is in between 39 fL and 46 fL then you need not worry as these are the normal ranges for ESR and RDW SD 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 ESR : 0.1 - 14 mm/hr

Ideal values of ESR depending on age :

Age	Ideal ESR value
<5 years	2.021
5-10 years	2.043
10-15 years	2.065
15-20 years	2.087
20-25 years	2.109
25-30 years	2.132
30-35 years	2.155
35-40 years	2.178
40-45 years	2.201
45-50 years	2.225
50-55 years	2.249
55-60 years	2.273
60-70 years	2.297
70-80 years	2.322
80-90 years	2.347
90-100 years	2.372
>100 years	2.397

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

If you want your blood test report to be interpreted by ESR specialist, then you can upload your report. Our ESR expert will provide you with the most accurate interpretation of your blood test results and treatment within 12 hours. Upload blood test report now

1,37,160

Total number of patients treated

Some examples of conditions that increase or decrease ESR levels include:

• Rheumatic fever
• Vascular disease
• Autoimmune diseases
• Inflammatory bowel disease
• Heart disease

If you want your blood test report to be interpreted by ESR specialist, you can upload your report. Our ESR 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 RDW SD : 39 - 46 fL

Ideal values of RDW SD depending on age :

Age	Ideal RDW SD value
<5 years	39.417
5-10 years	39.839
10-15 years	40.265
15-20 years	40.696
20-25 years	41.131
25-30 years	41.571
30-35 years	42.016
35-40 years	42.466
40-45 years	42.92
45-50 years	43.379
50-55 years	43.843
55-60 years	44.312
60-70 years	44.786
70-80 years	45.265
80-90 years	45.749
90-100 years	45.744
>100 years	45.738

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

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

Medical References

• MedlinePlus – Erythrocyte Sedimentation Rate (ESR)
• Cleveland Clinic – Sedimentation Rate (ESR): What It Is & Normal Range
• Mayo Clinic – Sed rate (erythrocyte sedimentation rate)