Is FT4 thyroid 2.23 high, normal or dangerous? What does Free thyroxine level 2.23 mean?

Your FT4 thyroid level of 2.23 is a High FT4 thyroid level.

High FT4 thyroid levels could indicate health issues. Typically, levels between 0.89 ng/dL to 1.76 ng/dL suggest no concerns. However, deviations from this range warrant prompt medical attention. Consulting a doctor for abnormal levels is advisable.

Normal range of FT4 thyroid found among men :0.89 - 1.76 ng/dL

Ideal values of FT4 thyroid depending on age (male) :

Age	Ideal FT4 thyroid value
<5 years	0.90985
5-10 years	0.93014
10-15 years	0.95088
15-20 years	0.97208
20-25 years	0.99376
25-30 years	1.01592
30-35 years	1.03858
35-40 years	1.06174
40-45 years	1.08542
45-50 years	1.10962
50-55 years	1.13436
55-60 years	1.15966
60-70 years	1.18552
70-80 years	1.21196
80-90 years	1.23899
90-100 years	1.26662
>100 years	1.29487

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

Get Advice via Email : Send us your blood test report, and our FT4 thyroid experts will check it. Within 12 hours, expect a detailed analysis and precise treatment guidance delivered to your email. If you've had additional blood tests apart from FT4 thyroid, please upload those too. A thorough diagnosis often relies on assessing all abnormalities for an accurate assessment. Upload blood test report now

1,37,160

Total number of patients treated

A video message on the treatment of your high FT4 thyroid level

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

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

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

Receive world-class medical opinion about your high FT4 thyroid levels over email.Upload blood test report now

Normal range of FT4 thyroid found among women :0.89-1.76 ng/dL

Ideal values of FT4 thyroid depending on age (female) :

Age	Ideal FT4 thyroid value
<5 years	0.91044
5-10 years	0.93135
10-15 years	0.95274
15-20 years	0.97462
20-25 years	0.99701
25-30 years	1.01991
30-35 years	1.04334
35-40 years	1.0673
40-45 years	1.09181
45-50 years	1.11689
50-55 years	1.14254
55-60 years	1.16878
60-70 years	1.19563
70-80 years	1.22309
80-90 years	1.25118
90-100 years	1.27992
>100 years	1.30932

If you take a FT4 thyroid blood test and the results are not in the normal range (0.89-1.76 ng/dL), your physician may recommend more tests to figure out the problem. You might also get this test if your physician thinks you have some other disease.

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How the FT4 thyroid Test Is Done :

When your doctor recommends a FT4 thyroid test, you'll likely undergo a simple blood draw specifically targeting the measurement of FT4 thyroid. A pathologist, a specialist in studying diseases, will collect a small blood sample from your veins using a needle. Your FT4 thyroid test results will typically be available within a few hours after this procedure.