What causes high RDW SD and low Bilirubin indirect?

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

If your RDW SD is in between 39 fL and 46 fL and your Bilirubin indirect is in between 0.1 mg/dL and 1 mg/dL then you need not worry as these are the normal ranges for RDW SD and Bilirubin indirect 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	39.671
5-10 years	40.354
10-15 years	41.048
15-20 years	41.754
20-25 years	42.473
25-30 years	43.204
30-35 years	43.948
35-40 years	44.704
40-45 years	45.473
45-50 years	45.46
50-55 years	45.446
55-60 years	45.432
60-70 years	45.419
70-80 years	45.406
80-90 years	45.392
90-100 years	45.378
>100 years	45.365

*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 Bilirubin indirect : 0.1 - 1 mg/dL

Ideal values of Bilirubin indirect depending on age :

Age	Ideal Bilirubin indirect value
<5 years	0.10172
5-10 years	0.10347
10-15 years	0.10525
15-20 years	0.10706
20-25 years	0.1089
25-30 years	0.11077
30-35 years	0.11268
35-40 years	0.11462
40-45 years	0.11659
45-50 years	0.1186
50-55 years	0.12064
55-60 years	0.12272
60-70 years	0.12483
70-80 years	0.12698
80-90 years	0.12917
90-100 years	0.13139
>100 years	0.13365

High RDW SD and low Bilirubin indirect can be caused by a lot of reasons. If you take RDW SD and Bilirubin indirect blood tests and the results are higher than 46 fL for RDW SD and lower than 0.1 mg/dL for Bilirubin indirect, 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 Bilirubin indirect Tests Are Done :

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