What causes high Alkaline phosphatase and low CRP?

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

If your Alkaline phosphatase is in between 30 U/L and 120 U/L and your CRP is in between 0.1 mg/L and 3 mg/L then you need not worry as these are the normal ranges for Alkaline phosphatase and CRP 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	30.526
5-10 years	31.061
10-15 years	31.605
15-20 years	32.159
20-25 years	32.723
25-30 years	33.297
30-35 years	33.881
35-40 years	34.475
40-45 years	35.079
45-50 years	35.694
50-55 years	36.32
55-60 years	36.957
60-70 years	37.605
70-80 years	38.264
80-90 years	38.935
90-100 years	39.618
>100 years	40.313

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

Normal range of CRP : 0.1 - 3 mg/L

Ideal values of CRP depending on age :

Age	Ideal CRP value
<5 years	0.11193
5-10 years	0.11389
10-15 years	0.11589
15-20 years	0.11792
20-25 years	0.11999
25-30 years	0.12209
30-35 years	0.12423
35-40 years	0.12641
40-45 years	0.12863
45-50 years	0.13088
50-55 years	0.13317
55-60 years	0.1355
60-70 years	0.13788
70-80 years	0.1403
80-90 years	0.14276
90-100 years	0.14526
>100 years	0.14781

High Alkaline phosphatase and low CRP can be caused by a lot of reasons. If you take Alkaline phosphatase and CRP blood tests and the results are higher than 120 U/L for Alkaline phosphatase and lower than 0.1 mg/L for CRP, 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 CRP Tests Are Done :

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