Is FT3 thyroid 4.5 high, normal or dangerous? What does Free triiodothyronine level 4.5 mean?

Your FT3 thyroid level of 4.5 is a High FT3 thyroid level.

High FT3 thyroid levels could indicate health issues. Typically, levels between 2.3 pg/mL to 4.2 pg/mL suggest no concerns. However, deviations from this range warrant prompt medical attention. Consulting a doctor for abnormal levels is advisable.

Normal range of FT3 thyroid found among men :2.3 - 4.2 pg/mL

Ideal values of FT3 thyroid depending on age (male) :

Age	Ideal FT3 thyroid value
<5 years	2.404
5-10 years	2.512
10-15 years	2.625
15-20 years	2.743
20-25 years	2.866
25-30 years	2.995
30-35 years	3.13
35-40 years	3.271
40-45 years	3.418
45-50 years	3.572
50-55 years	3.733
55-60 years	3.901
60-70 years	4.077
70-80 years	4.068
80-90 years	4.06
90-100 years	4.052
>100 years	4.043

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

Get Advice via Email : Send us your blood test report, and our FT3 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 FT3 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 FT3 thyroid level

If you want your blood test report to be interpreted by FT3 thyroid specialist, you can upload your report. Our FT3 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 FT3 thyroid levels include:

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

Receive world-class medical opinion about your high FT3 thyroid levels over email.Upload blood test report now

Normal range of FT3 thyroid found among women :2.3-4.2 pg/mL

Ideal values of FT3 thyroid depending on age (female) :

Age	Ideal FT3 thyroid value
<5 years	2.407
5-10 years	2.519
10-15 years	2.636
15-20 years	2.758
20-25 years	2.886
25-30 years	3.02
30-35 years	3.16
35-40 years	3.306
40-45 years	3.459
45-50 years	3.619
50-55 years	3.787
55-60 years	3.963
60-70 years	4.147
70-80 years	4.138
80-90 years	4.129
90-100 years	4.12
>100 years	4.111

If you take a FT3 thyroid blood test and the results are not in the normal range (2.3-4.2 pg/mL), 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 FT3 thyroid Test Is Done :

When your doctor recommends a FT3 thyroid test, you'll likely undergo a simple blood draw specifically targeting the measurement of FT3 thyroid. A pathologist, a specialist in studying diseases, will collect a small blood sample from your veins using a needle. Your FT3 thyroid test results will typically be available within a few hours after this procedure.