What causes high RDW and low Potassium?

High RDW and low Potassium can be caused by many reasons.

If your RDW is in between 11.6 % and 14 % and your Potassium is in between 3.5 mmol/L and 5.1 mmol/L then you need not worry as these are the normal ranges for RDW and Potassium 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	11.885
5-10 years	12.177
10-15 years	12.477
15-20 years	12.784
20-25 years	13.098
25-30 years	13.42
30-35 years	13.75
35-40 years	13.741
40-45 years	13.733
45-50 years	13.725
50-55 years	13.717
55-60 years	13.708
60-70 years	13.699
70-80 years	13.691
80-90 years	13.683
90-100 years	13.675
>100 years	13.666

*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 Potassium : 3.5 - 5.1 mmol/L

Ideal values of Potassium depending on age :

Age	Ideal Potassium value
<5 years	3.586
5-10 years	3.674
10-15 years	3.764
15-20 years	3.857
20-25 years	3.952
25-30 years	4.049
30-35 years	4.149
35-40 years	4.251
40-45 years	4.356
45-50 years	4.463
50-55 years	4.573
55-60 years	4.685
60-70 years	4.8
70-80 years	4.918
80-90 years	5.039
90-100 years	5.036
>100 years	5.033

High RDW and low Potassium can be caused by a lot of reasons. If you take RDW and Potassium blood tests and the results are higher than 14 % for RDW and lower than 3.5 mmol/L for Potassium, 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 Potassium Tests Are Done :

If your doctor wants RDW and Potassium tests on you, you may need to go through these tests. During the RDW and Potassium 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 Potassium 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