What causes high Cystatin c and low Calcium?

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

If your Cystatin c is in between 0.62 mg/L and 1.03 mg/L and your Calcium is in between 8.5 mg/dL and 10.1 mg/dL then you need not worry as these are the normal ranges for Cystatin c and Calcium 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	0.662
10-15 years	0.684
15-20 years	0.707
20-25 years	0.73
25-30 years	0.754
30-35 years	0.779
35-40 years	0.805
40-45 years	0.832
45-50 years	0.86
50-55 years	0.889
55-60 years	0.919
60-70 years	0.95
70-80 years	0.982
80-90 years	1.015
90-100 years	1.014
>100 years	1.013

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

Normal range of Calcium : 8.5 - 10.1 mg/dL

Ideal values of Calcium depending on age :

Age	Ideal Calcium value
<5 years	8.782
5-10 years	9.074
10-15 years	9.375
15-20 years	9.686
20-25 years	10.008
25-30 years	9.997
30-35 years	9.986
35-40 years	9.975
40-45 years	9.964
45-50 years	9.953
50-55 years	9.942
55-60 years	9.931
60-70 years	9.92
70-80 years	9.909
80-90 years	9.898
90-100 years	9.887
>100 years	9.876

High Cystatin c and low Calcium can be caused by a lot of reasons. If you take Cystatin c and Calcium blood tests and the results are higher than 1.03 mg/L for Cystatin c and lower than 8.5 mg/dL for Calcium, 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 Calcium Tests Are Done :

If your doctor wants Cystatin c and Calcium tests on you, you may need to go through these tests. During the Cystatin c and Calcium 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 Calcium 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