What causes high RDW SD and low GGT?

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

If your RDW SD is in between 39 fL and 46 fL and your GGT is in between 15 U/L and 85 U/L then you need not worry as these are the normal ranges for RDW SD and GGT 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 SD : 39 - 46 fL

Ideal values of RDW SD depending on age :

Age	Ideal RDW SD value
<5 years	39.674
5-10 years	40.36
10-15 years	41.058
15-20 years	41.768
20-25 years	42.49
25-30 years	43.225
30-35 years	43.972
35-40 years	44.732
40-45 years	45.505
45-50 years	45.492
50-55 years	45.479
55-60 years	45.465
60-70 years	45.451
70-80 years	45.438
80-90 years	45.425
90-100 years	45.411
>100 years	45.397

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

If you want your blood test report to be interpreted by RDW SD specialist, then you can upload your report. Our RDW SD 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 SD levels include:

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

If you want your blood test report to be interpreted by RDW SD specialist, you can upload your report. Our RDW SD 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 GGT : 15 - 85 U/L

Ideal values of GGT depending on age :

Age	Ideal GGT value
<5 years	15.259
5-10 years	15.523
10-15 years	15.791
15-20 years	16.064
20-25 years	16.342
25-30 years	16.625
30-35 years	16.912
35-40 years	17.204
40-45 years	17.501
45-50 years	17.804
50-55 years	18.112
55-60 years	18.425
60-70 years	18.744
70-80 years	19.068
80-90 years	19.398
90-100 years	19.733
>100 years	20.074

High RDW SD and low GGT can be caused by a lot of reasons. If you take RDW SD and GGT blood tests and the results are higher than 46 fL for RDW SD and lower than 15 U/L for GGT, 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 GGT Tests Are Done :

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