What causes high Cystatin c and low FT3 thyroid?

High Cystatin c and low FT3 thyroid can be caused by many reasons.

If your Cystatin c is in between 0.62 mg/L and 1.03 mg/L and your FT3 thyroid is in between 2.3 pg/mL and 4.2 pg/mL then you need not worry as these are the normal ranges for Cystatin c and FT3 thyroid 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	0.642
5-10 years	0.664
10-15 years	0.687
15-20 years	0.711
20-25 years	0.736
25-30 years	0.762
30-35 years	0.789
35-40 years	0.817
40-45 years	0.846
45-50 years	0.876
50-55 years	0.907
55-60 years	0.939
60-70 years	0.972
70-80 years	1.006
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

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 FT3 thyroid : 2.3 - 4.2 pg/mL

Ideal values of FT3 thyroid depending on age :

Age	Ideal FT3 thyroid value
<5 years	2.38
5-10 years	2.463
10-15 years	2.549
15-20 years	2.638
20-25 years	2.73
25-30 years	2.825
30-35 years	2.924
35-40 years	3.026
40-45 years	3.132
45-50 years	3.241
50-55 years	3.354
55-60 years	3.471
60-70 years	3.592
70-80 years	3.717
80-90 years	3.847
90-100 years	3.981
>100 years	4.12

High Cystatin c and low FT3 thyroid can be caused by a lot of reasons. If you take Cystatin c and FT3 thyroid blood tests and the results are higher than 1.03 mg/L for Cystatin c and lower than 2.3 pg/mL for FT3 thyroid, 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 FT3 thyroid Tests Are Done :

If your doctor wants Cystatin c and FT3 thyroid tests on you, you may need to go through these tests. During the Cystatin c and FT3 thyroid 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 FT3 thyroid Test reports by your pathologist.