What causes high RDW and low Phosphate?

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

If your RDW is in between 11.6 % and 14 % and your Phosphate is in between 2.4 mg/dL and 4.5 mg/dL then you need not worry as these are the normal ranges for RDW and Phosphate 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	11.906
5-10 years	12.22
10-15 years	12.543
15-20 years	12.874
20-25 years	13.214
25-30 years	13.563
30-35 years	13.921
35-40 years	13.912
40-45 years	13.902
45-50 years	13.892
50-55 years	13.883
55-60 years	13.874
60-70 years	13.864
70-80 years	13.854
80-90 years	13.845
90-100 years	13.836
>100 years	13.826

*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 Phosphate : 2.4 - 4.5 mg/dL

Ideal values of Phosphate depending on age :

Age	Ideal Phosphate value
<5 years	2.463
5-10 years	2.528
10-15 years	2.595
15-20 years	2.664
20-25 years	2.734
25-30 years	2.806
30-35 years	2.88
35-40 years	2.956
40-45 years	3.034
45-50 years	3.114
50-55 years	3.196
55-60 years	3.28
60-70 years	3.367
70-80 years	3.456
80-90 years	3.547
90-100 years	3.641
>100 years	3.737

High RDW and low Phosphate can be caused by a lot of reasons. If you take RDW and Phosphate blood tests and the results are higher than 14 % for RDW and lower than 2.4 mg/dL for Phosphate, 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 Phosphate Tests Are Done :

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