What causes high Phosphate and low RDW?

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

If your Phosphate is in between 2.4 mg/dL and 4.5 mg/dL and your RDW is in between 11.6 % and 14 % then you need not worry as these are the normal ranges for Phosphate and RDW respectively. But if your levels are lesser or greater than the above values, then there may be some problem in your body.

Some examples of conditions that can increase or decrease Phosphate levels include:

• Kidney failure
• Rickets and osteomalacia (due to vitamin D deficiencies)
• Diabetic ketoacidosis (after treatment)
• Increased blood calcium
• Liver disease

Normal range of Phosphate : 2.4 - 4.5 mg/dL

Ideal values of Phosphate depending on age :

Age	Ideal Phosphate value
<5 years	2.474
5-10 years	2.55
10-15 years	2.629
15-20 years	2.71
20-25 years	2.793
25-30 years	2.879
30-35 years	2.968
35-40 years	3.059
40-45 years	3.153
45-50 years	3.25
50-55 years	3.35
55-60 years	3.453
60-70 years	3.559
70-80 years	3.669
80-90 years	3.782
90-100 years	3.898
>100 years	4.018

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

Normal range of RDW : 11.6 - 14 %

Ideal values of RDW depending on age :

Age	Ideal RDW value
<5 years	11.957
5-10 years	12.325
10-15 years	12.705
15-20 years	13.096
20-25 years	13.499
25-30 years	13.915
30-35 years	13.902
35-40 years	13.889
40-45 years	13.876
45-50 years	13.862
50-55 years	13.849
55-60 years	13.836
60-70 years	13.823
70-80 years	13.81
80-90 years	13.797
90-100 years	13.784
>100 years	13.771

High Phosphate and low RDW can be caused by a lot of reasons. If you take Phosphate and RDW blood tests and the results are higher than 4.5 mg/dL for Phosphate and lower than 11.6 % for RDW, 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 Phosphate and RDW Tests Are Done :

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

Medical References

• MedlinePlus – Phosphate in Blood
• WebMD – Phosphate Blood Test: Purpose, High vs. Low vs. Normal Levels
• MedlinePlus – Phosphate in Urine