What does high RDW and Cystatin c mean in blood test?

High RDW and Cystatin c can be caused by numerous problems.

High levels of RDW and Cystatin c in the blood indicate a variety of health problems. If your blood RDW level is between 11.6 % to 14 % and the Cystatin c level is between 0.62 % to 1.03 mg/L, then your body does not have any underlying health problems. But if RDW and Cystatin c levels exceed these levels, you should see a doctor immediately.

Normal RDW range : 11.6 - 14 %

Age-wise ideal RDW level in blood:

Age	Ideal RDW value
<5 years	12.248
5-10 years	12.933
10-15 years	13.656
15-20 years	13.613
20-25 years	13.57
25-30 years	13.528
30-35 years	13.486
35-40 years	13.444
40-45 years	13.402
45-50 years	13.36
50-55 years	13.318
55-60 years	13.276
60-70 years	13.234
70-80 years	13.974
80-90 years	13.93
90-100 years	13.887
>100 years	13.843

*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 Cystatin c range : 0.62 - 1.03 mg/L

Age-wise ideal Cystatin c level in blood:

Age	Ideal Cystatin c value
<5 years	0.655
5-10 years	0.692
10-15 years	0.731
15-20 years	0.772
20-25 years	0.815
25-30 years	0.861
30-35 years	0.909
35-40 years	0.96
40-45 years	1.014
45-50 years	1.011
50-55 years	1.008
55-60 years	1.005
60-70 years	1.002
70-80 years	0.999
80-90 years	0.996
90-100 years	0.993
>100 years	0.99

High RDW and Cystatin c levels in the blood can cause a number of health problems. Your GP may recommend follow-up tests to get an important picture of your overall health and well-being. If the results are greater than 14 % for RDW and more than 1.03 mg/L for Cystatin c, you may also need some follow-up tests that will help detect the underlying disease early.

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How is a blood test performed in the lab?

Depending on the symptoms you are experiencing, your doctor may order a RDW and Cystatin c test. In most hospitals RDW and Cystatin c results can be obtained within three to six hours after blood is taken. The blood is usually drawn from a vein on the inside of the elbow or the back of the hand. Drink plenty of water before your appointment. If you experience any symptoms that you are concerned about are out of the ordinary, call your doctor immediately.