What causes high HbA1c and low RDW SD?

High HbA1c and low RDW SD can be caused by many reasons.

If your HbA1c is in between 4 % and 5.7 % and your RDW SD is in between 39 fL and 46 fL then you need not worry as these are the normal ranges for HbA1c 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 HbA1c : 4 - 5.7 %

Ideal values of HbA1c depending on age :

Age	Ideal HbA1c value
<5 years	4.048
5-10 years	4.097
10-15 years	4.146
15-20 years	4.196
20-25 years	4.246
25-30 years	4.297
30-35 years	4.349
35-40 years	4.401
40-45 years	4.454
45-50 years	4.507
50-55 years	4.561
55-60 years	4.616
60-70 years	4.671
70-80 years	4.727
80-90 years	4.784
90-100 years	4.841
>100 years	4.899

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

If you want your blood test report to be interpreted by HbA1c specialist, then you can upload your report. Our HbA1c 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

HbA1c treatment - Click to read 10 GOLDEN ARTICLES on Diabetes

Long-term complications of diabetes develop gradually. The longer you have diabetes the higher the risk of complications. Eventually, diabetes complications may be disabling or even life-threatening. Possible complications include:

• Kidney damage
• Eye damage
• Foot damage
• Alzheimer's disease
• Heart and blood vessel disease

If you want your blood test report to be interpreted by HbA1c specialist, you can upload your report. Our HbA1c 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	39.468
5-10 years	39.942
10-15 years	40.421
15-20 years	40.906
20-25 years	41.397
25-30 years	41.894
30-35 years	42.397
35-40 years	42.906
40-45 years	43.421
45-50 years	43.942
50-55 years	44.469
55-60 years	45.003
60-70 years	45.543
70-80 years	45.537
80-90 years	45.53
90-100 years	45.523
>100 years	45.516

High HbA1c and low RDW SD can be caused by a lot of reasons. If you take HbA1c and RDW SD blood tests and the results are higher than 5.7 % for HbA1c 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 HbA1c and RDW SD Tests Are Done :

If your doctor wants HbA1c and RDW SD tests on you, you may need to go through these tests. During the HbA1c 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 HbA1c and RDW SD Test reports by your pathologist.

Medical References

• MedlinePlus – Hemoglobin A1C (HbA1c) Test
• NIH – The A1C Test & Diabetes
• Mayo Clinic – A1C test