What causes high RDW and low BUN Creatinine ratio?

High RDW and low BUN Creatinine ratio can be caused by many reasons.

If your RDW is in between 11.6 % and 14 % and your BUN Creatinine ratio is in between 5 Ratio and 15 Ratio then you need not worry as these are the normal ranges for RDW and BUN Creatinine ratio 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 : 11.6 - 14 %

Ideal values of RDW depending on age :

Age	Ideal RDW value
<5 years	11.882
5-10 years	12.171
10-15 years	12.467
15-20 years	12.77
20-25 years	13.08
25-30 years	13.398
30-35 years	13.724
35-40 years	13.715
40-45 years	13.707
45-50 years	13.699
50-55 years	13.691
55-60 years	13.683
60-70 years	13.674
70-80 years	13.666
80-90 years	13.998
90-100 years	13.99
>100 years	13.982

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

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

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

If you want your blood test report to be interpreted by RDW specialist, you can upload your report. Our RDW 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 BUN Creatinine ratio : 5 - 15 Ratio

Ideal values of BUN Creatinine ratio depending on age :

Age	Ideal BUN Creatinine ratio value
<5 years	5.122
5-10 years	5.246
10-15 years	5.373
15-20 years	5.504
20-25 years	5.638
25-30 years	5.775
30-35 years	5.915
35-40 years	6.059
40-45 years	6.206
45-50 years	6.357
50-55 years	6.511
55-60 years	6.669
60-70 years	6.831
70-80 years	6.997
80-90 years	7.167
90-100 years	7.341
>100 years	7.519

High RDW and low BUN Creatinine ratio can be caused by a lot of reasons. If you take RDW and BUN Creatinine ratio blood tests and the results are higher than 14 % for RDW and lower than 5 Ratio for BUN Creatinine ratio, 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 and BUN Creatinine ratio Tests Are Done :

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

Medical References

• Cleveland Clinic – RDW Blood Test: What It Is, Procedure & Results
• MedlinePlus – RDW (Red Cell Distribution Width)
• NIH – High red blood cell distribution width is closely associated with risk of carotid artery atherosclerosis