What causes high Phosphate and low RDW SD?

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

If your Phosphate is in between 2.4 mg/dL and 4.5 mg/dL and your RDW SD is in between 39 fL and 46 fL then you need not worry as these are the normal ranges for Phosphate and RDW SD 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	2.489
5-10 years	2.581
10-15 years	2.676
15-20 years	2.775
20-25 years	2.878
25-30 years	2.984
30-35 years	3.094
35-40 years	3.208
40-45 years	3.327
45-50 years	3.45
50-55 years	3.578
55-60 years	3.71
60-70 years	3.847
70-80 years	3.989
80-90 years	4.137
90-100 years	4.29
>100 years	4.449

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

Normal range of RDW SD : 39 - 46 fL

Ideal values of RDW SD depending on age :

Age	Ideal RDW SD value
<5 years	40.443
5-10 years	41.939
10-15 years	43.491
15-20 years	45.1
20-25 years	45.039
25-30 years	44.977
30-35 years	44.915
35-40 years	44.854
40-45 years	44.793
45-50 years	44.731
50-55 years	44.67
55-60 years	44.609
60-70 years	44.548
70-80 years	44.487
80-90 years	44.426
90-100 years	44.365
>100 years	44.305

High Phosphate and low RDW SD can be caused by a lot of reasons. If you take Phosphate and RDW SD blood tests and the results are higher than 4.5 mg/dL for Phosphate and lower than 39 fL for RDW SD, 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 SD Tests Are Done :

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