What causes high Phosphate and low Alkaline phosphatase?

High Phosphate and low Alkaline phosphatase can be caused by many reasons.

If your Phosphate is in between 2.4 mg/dL and 4.5 mg/dL and your Alkaline phosphatase is in between 30 U/L and 120 U/L then you need not worry as these are the normal ranges for Phosphate and Alkaline phosphatase 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 Phosphate : 2.4 - 4.5 mg/dL

Ideal values of Phosphate depending on age :

Age	Ideal Phosphate value
<5 years	2.479
5-10 years	2.56
10-15 years	2.644
15-20 years	2.731
20-25 years	2.821
25-30 years	2.914
30-35 years	3.01
35-40 years	3.109
40-45 years	3.211
45-50 years	3.316
50-55 years	3.425
55-60 years	3.537
60-70 years	3.653
70-80 years	3.773
80-90 years	3.897
90-100 years	4.025
>100 years	4.157

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

If you want your blood test report to be interpreted by Phosphate specialist, then you can upload your report. Our Phosphate expert will provide you with the most accurate interpretation of your blood test results and treatment within 12 hours. Upload blood test report now

1,37,160

Total number of patients treated

Some examples of conditions that 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

If you want your blood test report to be interpreted by Phosphate specialist, you can upload your report. Our Phosphate 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 Alkaline phosphatase : 30 - 120 U/L

Ideal values of Alkaline phosphatase depending on age :

Age	Ideal Alkaline phosphatase value
<5 years	30.984
5-10 years	32
10-15 years	33.05
15-20 years	34.134
20-25 years	35.254
25-30 years	36.41
30-35 years	37.604
35-40 years	38.837
40-45 years	40.111
45-50 years	41.427
50-55 years	42.786
55-60 years	44.189
60-70 years	45.638
70-80 years	47.135
80-90 years	48.681
90-100 years	50.278
>100 years	51.927

High Phosphate and low Alkaline phosphatase can be caused by a lot of reasons. If you take Phosphate and Alkaline phosphatase blood tests and the results are higher than 4.5 mg/dL for Phosphate and lower than 30 U/L for Alkaline phosphatase, 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 Alkaline phosphatase Tests Are Done :

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