What causes high Ferritin and low FT4 thyroid?

High Ferritin and low FT4 thyroid can be caused by many reasons.

If your Ferritin is in between 22 ng/mL and 322 ng/mL and your FT4 thyroid is in between 0.89 ng/dL and 1.76 ng/dL then you need not worry as these are the normal ranges for Ferritin and FT4 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 Ferritin : 22 - 322 ng/mL

Ideal values of Ferritin depending on age :

Age	Ideal Ferritin value
<5 years	22.385
5-10 years	22.777
10-15 years	23.176
15-20 years	23.582
20-25 years	23.995
25-30 years	24.415
30-35 years	24.842
35-40 years	25.277
40-45 years	25.719
45-50 years	26.169
50-55 years	26.627
55-60 years	27.093
60-70 years	27.567
70-80 years	28.049
80-90 years	28.54
90-100 years	29.039
>100 years	29.547

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

If you want your blood test report to be interpreted by Ferritin specialist, then you can upload your report. Our Ferritin 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 Ferritin levels include:

• Iron overload or iron poisoning
• Adult Still's disease
• Liver disease
• Iron deficiency anemia
• Hemachromatosis

If you want your blood test report to be interpreted by Ferritin specialist, you can upload your report. Our Ferritin 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 FT4 thyroid : 0.89 - 1.76 ng/dL

Ideal values of FT4 thyroid depending on age :

Age	Ideal FT4 thyroid value
<5 years	0.90558
5-10 years	0.92143
10-15 years	0.93756
15-20 years	0.95397
20-25 years	0.97066
25-30 years	0.98765
30-35 years	1.00493
35-40 years	1.02252
40-45 years	1.04041
45-50 years	1.05862
50-55 years	1.07715
55-60 years	1.096
60-70 years	1.11518
70-80 years	1.1347
80-90 years	1.15456
90-100 years	1.17476
>100 years	1.19532

High Ferritin and low FT4 thyroid can be caused by a lot of reasons. If you take Ferritin and FT4 thyroid blood tests and the results are higher than 322 ng/mL for Ferritin and lower than 0.89 ng/dL for FT4 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 Ferritin and FT4 thyroid Tests Are Done :

If your doctor wants Ferritin and FT4 thyroid tests on you, you may need to go through these tests. During the Ferritin and FT4 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 Ferritin and FT4 thyroid Test reports by your pathologist.

Medical References

• Cleveland Clinic – Ferritin Test: Levels & Test Results
• Mayo Clinic – Ferritin test
• MedlinePlus – Ferritin Blood Test