What causes high Alkaline phosphatase and low Phosphate?

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

If your Alkaline phosphatase is in between 30 U/L and 120 U/L 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 Alkaline phosphatase and Phosphate 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 Alkaline phosphatase levels include:

• Alcohol abuse
• Ulcerative colitis
• Blockage of the bile ducts.
• Insulin resistance
• Congestive heart failure

Alkaline phosphatase treatment - Click to read 10 GOLDEN ARTICLES on Liver health

Normal range of Alkaline phosphatase : 30 - 120 U/L

Ideal values of Alkaline phosphatase depending on age :

Age	Ideal Alkaline phosphatase value
<5 years	30.529
5-10 years	31.068
10-15 years	31.616
15-20 years	32.174
20-25 years	32.742
25-30 years	33.32
30-35 years	33.908
35-40 years	34.506
40-45 years	35.115
45-50 years	35.734
50-55 years	36.364
55-60 years	37.005
60-70 years	37.658
70-80 years	38.322
80-90 years	38.998
90-100 years	39.686
>100 years	40.386

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

Normal range of Phosphate : 2.4 - 4.5 mg/dL

Ideal values of Phosphate depending on age :

Age	Ideal Phosphate value
<5 years	2.442
5-10 years	2.485
10-15 years	2.529
15-20 years	2.574
20-25 years	2.619
25-30 years	2.665
30-35 years	2.712
35-40 years	2.76
40-45 years	2.809
45-50 years	2.859
50-55 years	2.909
55-60 years	2.96
60-70 years	3.012
70-80 years	3.065
80-90 years	3.119
90-100 years	3.174
>100 years	3.23

High Alkaline phosphatase and low Phosphate can be caused by a lot of reasons. If you take Alkaline phosphatase and Phosphate blood tests and the results are higher than 120 U/L for Alkaline phosphatase 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 Alkaline phosphatase and Phosphate Tests Are Done :

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

Medical References

• Cleveland Clinic – Alkaline Phosphatase (ALP): What It Is, Causes & Treatment
• Mayo Clinic – Alkaline phosphatase (ALP) blood test
• MedlinePlus – Alkaline Phosphatase
• WebMD – Alkaline Phosphatase (ALP): Tests and Results