What does high FT4 thyroid and Ferritin mean in blood test?

High FT4 thyroid and Ferritin can be caused by numerous problems.

High levels of FT4 thyroid and Ferritin in the blood indicate a variety of health problems. If your blood FT4 thyroid level is between 0.89 ng/dL to 1.76 ng/dL and the Ferritin level is between 22 ng/dL to 322 ng/mL, then your body does not have any underlying health problems. But if FT4 thyroid and Ferritin levels exceed these levels, you should see a doctor immediately.

Normal FT4 thyroid range : 0.89 - 1.76 ng/dL

Age-wise ideal FT4 thyroid level in blood:

Age	Ideal FT4 thyroid value
<5 years	0.94616
5-10 years	1.00586
10-15 years	1.06933
15-20 years	1.1368
20-25 years	1.20853
25-30 years	1.28479
30-35 years	1.36586
35-40 years	1.45205
40-45 years	1.54367
45-50 years	1.64108
50-55 years	1.74463
55-60 years	1.73769
60-70 years	1.73077
70-80 years	1.72388
80-90 years	1.71702
90-100 years	1.71018
>100 years	1.70337

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

If you want your blood test report to be interpreted by FT4 thyroid specialist, then you can upload your report. Our FT4 thyroid expert will provide you with the most accurate interpretation of your blood test results and treatment within 12 hours. Upload blood test report now

1,37,160

Total number of patients treated

Some examples of conditions that increase or decrease FT4 thyroid levels include:

• Autoimmune disease
• A non-functioning thyroid gland
• Thyroiditis
• Diabetes
• Liver disease

If you want your blood test report to be interpreted by FT4 thyroid specialist, you can upload your report. Our FT4 thyroid 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 Ferritin range : 22 - 322 ng/mL

Age-wise ideal Ferritin level in blood:

Age	Ideal Ferritin value
<5 years	23.388
5-10 years	24.864
10-15 years	26.433
15-20 years	28.101
20-25 years	29.874
25-30 years	31.759
30-35 years	33.763
35-40 years	35.893
40-45 years	38.158
45-50 years	40.566
50-55 years	43.126
55-60 years	45.847
60-70 years	48.74
70-80 years	51.815
80-90 years	55.085
90-100 years	58.561
>100 years	62.256

High FT4 thyroid and Ferritin levels in the blood can cause a number of health problems. Your GP may recommend follow-up tests to get an important picture of your overall health and well-being. If the results are greater than 1.76 ng/dL for FT4 thyroid and more than 322 ng/mL for Ferritin, you may also need some follow-up tests that will help detect the underlying disease early.

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How is a blood test performed in the lab?

Depending on the symptoms you are experiencing, your doctor may order a FT4 thyroid and Ferritin test. In most hospitals FT4 thyroid and Ferritin results can be obtained within three to six hours after blood is taken. The blood is usually drawn from a vein on the inside of the elbow or the back of the hand. Drink plenty of water before your appointment. If you experience any symptoms that you are concerned about are out of the ordinary, call your doctor immediately.