What causes high RDW SD and low Alkaline phosphatase?

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

If your RDW SD is in between 39 fL and 46 fL 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 RDW SD 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 RDW SD : 39 - 46 fL

Ideal values of RDW SD depending on age :

Age	Ideal RDW SD value
<5 years	39.674
5-10 years	40.36
10-15 years	41.057
15-20 years	41.766
20-25 years	42.488
25-30 years	43.222
30-35 years	43.969
35-40 years	44.729
40-45 years	45.502
45-50 years	45.488
50-55 years	45.474
55-60 years	45.461
60-70 years	45.448
70-80 years	45.434
80-90 years	45.42
90-100 years	45.407
>100 years	45.394

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

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

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Some examples of conditions that increase or decrease RDW SD levels include:

• Thalassemia, an inherited blood disorder
• Crohn's disease
• Chronic liver disease
• An iron or vitamin deficiency
• Heart disease

If you want your blood test report to be interpreted by RDW SD specialist, you can upload your report. Our RDW SD 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	30.518
5-10 years	31.045
10-15 years	31.581
15-20 years	32.127
20-25 years	32.682
25-30 years	33.247
30-35 years	33.822
35-40 years	34.406
40-45 years	35.001
45-50 years	35.606
50-55 years	36.221
55-60 years	36.847
60-70 years	37.484
70-80 years	38.132
80-90 years	38.791
90-100 years	39.461
>100 years	40.143

High RDW SD and low Alkaline phosphatase can be caused by a lot of reasons. If you take RDW SD and Alkaline phosphatase blood tests and the results are higher than 46 fL for RDW SD 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 RDW SD and Alkaline phosphatase Tests Are Done :

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