What causes high Cystatin c and low ALT SGPT?

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

If your Cystatin c is in between 0.62 mg/L and 1.03 mg/L and your ALT SGPT is in between 21 U/L and 72 U/L then you need not worry as these are the normal ranges for Cystatin c and ALT SGPT 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	0.64
5-10 years	0.661
10-15 years	0.683
15-20 years	0.705
20-25 years	0.728
25-30 years	0.752
30-35 years	0.777
35-40 years	0.802
40-45 years	0.828
45-50 years	0.855
50-55 years	0.883
55-60 years	0.912
60-70 years	0.942
70-80 years	0.973
80-90 years	1.005
90-100 years	1.004
>100 years	1.003

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

Normal range of ALT SGPT : 21 - 72 U/L

Ideal values of ALT SGPT depending on age :

Age	Ideal ALT SGPT value
<5 years	21.687
5-10 years	22.396
10-15 years	23.128
15-20 years	23.884
20-25 years	24.665
25-30 years	25.472
30-35 years	26.305
35-40 years	27.165
40-45 years	28.053
45-50 years	28.97
50-55 years	29.917
55-60 years	30.895
60-70 years	31.905
70-80 years	32.948
80-90 years	34.025
90-100 years	35.138
>100 years	36.287

High Cystatin c and low ALT SGPT can be caused by a lot of reasons. If you take Cystatin c and ALT SGPT blood tests and the results are higher than 1.03 mg/L for Cystatin c and lower than 21 U/L for ALT SGPT, 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 ALT SGPT Tests Are Done :

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