What causes high Cystatin c and low Uric acid?

High Cystatin c and low Uric acid can be caused by many reasons.

If your Cystatin c is in between 0.62 mg/L and 1.03 mg/L and your Uric acid is in between 3.5 mg/dL and 7.2 mg/dL then you need not worry as these are the normal ranges for Cystatin c and Uric acid 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 Cystatin c levels include:

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

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	0.641
5-10 years	0.663
10-15 years	0.686
15-20 years	0.71
20-25 years	0.734
25-30 years	0.759
30-35 years	0.785
35-40 years	0.812
40-45 years	0.84
45-50 years	0.869
50-55 years	0.899
55-60 years	0.93
60-70 years	0.962
70-80 years	0.995
80-90 years	1.029
90-100 years	1.027
>100 years	1.025

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

Normal range of Uric acid : 3.5 - 7.2 mg/dL

Ideal values of Uric acid depending on age :

Age	Ideal Uric acid value
<5 years	3.62
5-10 years	3.745
10-15 years	3.874
15-20 years	4.007
20-25 years	4.145
25-30 years	4.288
30-35 years	4.436
35-40 years	4.589
40-45 years	4.747
45-50 years	4.91
50-55 years	5.079
55-60 years	5.254
60-70 years	5.435
70-80 years	5.622
80-90 years	5.815
90-100 years	6.015
>100 years	6.222

High Cystatin c and low Uric acid can be caused by a lot of reasons. If you take Cystatin c and Uric acid blood tests and the results are higher than 1.03 mg/L for Cystatin c and lower than 3.5 mg/dL for Uric acid, 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 Uric acid Tests Are Done :

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

Medical References

• Cleveland Clinic – Estimated Glomerular Filtration Rate (eGFR): Test & Levels
• MedlinePlus – Glomerular Filtration Rate (GFR) Test
• NIH – Serum cystatin C as a marker of renal function in detection of early acute kidney injury
• NIH – Incorporation of Cystatin C Testing in Clinical Practice: Real World Experience in Sweden