What causes high RDW and low Alkaline phosphatase?

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

If your RDW is in between 11.6 % and 14 % 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 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 : 11.6 - 14 %

Ideal values of RDW depending on age :

Age	Ideal RDW value
<5 years	11.864
5-10 years	12.134
10-15 years	12.411
15-20 years	12.694
20-25 years	12.983
25-30 years	13.279
30-35 years	13.582
35-40 years	13.892
40-45 years	13.885
45-50 years	13.878
50-55 years	13.87
55-60 years	13.863
60-70 years	13.856
70-80 years	13.849
80-90 years	13.842
90-100 years	13.835
>100 years	13.827

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

If you want your blood test report to be interpreted by RDW specialist, then you can upload your report. Our RDW 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 levels include:

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

If you want your blood test report to be interpreted by RDW specialist, you can upload your report. Our RDW 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	30.684
5-10 years	31.384
10-15 years	32.1
15-20 years	32.832
20-25 years	33.581
25-30 years	34.347
30-35 years	35.13
35-40 years	35.931
40-45 years	36.75
45-50 years	37.588
50-55 years	38.445
55-60 years	39.322
60-70 years	40.219
70-80 years	41.136
80-90 years	42.074
90-100 years	43.033
>100 years	44.014

High RDW and low Alkaline phosphatase can be caused by a lot of reasons. If you take RDW and Alkaline phosphatase blood tests and the results are higher than 14 % for RDW 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 and Alkaline phosphatase Tests Are Done :

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

Medical References

• Cleveland Clinic – RDW Blood Test: What It Is, Procedure & Results
• MedlinePlus – RDW (Red Cell Distribution Width)
• NIH – High red blood cell distribution width is closely associated with risk of carotid artery atherosclerosis