What causes high Cystatin c and low RDW SD?

High Cystatin c and low RDW SD can be caused by many reasons.

If your Cystatin c is in between 0.62 mg/L and 1.03 mg/L and your RDW SD is in between 39 fL and 46 fL then you need not worry as these are the normal ranges for Cystatin c and RDW SD 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 Cystatin c : 0.62 - 1.03 mg/L

Ideal values of Cystatin c depending on age :

Age	Ideal Cystatin c value
<5 years	0.643
5-10 years	0.667
10-15 years	0.692
15-20 years	0.718
20-25 years	0.745
25-30 years	0.773
30-35 years	0.802
35-40 years	0.832
40-45 years	0.863
45-50 years	0.895
50-55 years	0.928
55-60 years	0.962
60-70 years	0.998
70-80 years	0.997
80-90 years	0.996
90-100 years	0.995
>100 years	0.994

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

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

• Impaired kidney function
• Diabetes
• Obstructive sleep apnea
• Metabolic syndrome
• Heart disease

If you want your blood test report to be interpreted by Cystatin c specialist, you can upload your report. Our Cystatin c 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 RDW SD : 39 - 46 fL

Ideal values of RDW SD depending on age :

Age	Ideal RDW SD value
<5 years	40.443
5-10 years	41.939
10-15 years	43.491
15-20 years	45.1
20-25 years	45.039
25-30 years	44.977
30-35 years	44.915
35-40 years	44.854
40-45 years	44.793
45-50 years	44.731
50-55 years	44.67
55-60 years	44.609
60-70 years	44.548
70-80 years	44.487
80-90 years	44.426
90-100 years	44.365
>100 years	44.305

High Cystatin c and low RDW SD can be caused by a lot of reasons. If you take Cystatin c and RDW SD blood tests and the results are higher than 1.03 mg/L for Cystatin c and lower than 39 fL for RDW SD, 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 Cystatin c and RDW SD Tests Are Done :

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