Is FT4 thyroid 1.59 normal, high or low? What does Free thyroxine level 1.59 mean?

Your FT4 thyroid level of 1.59 is a Normal FT4 thyroid level.

Normal 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	0.90415
5-10 years	0.91853
10-15 years	0.93313
15-20 years	0.94797
20-25 years	0.96304
25-30 years	0.97835
30-35 years	0.99391
35-40 years	1.00971
40-45 years	1.02576
45-50 years	1.04207
50-55 years	1.05864
55-60 years	1.07547
60-70 years	1.09257
70-80 years	1.10994
80-90 years	1.12759
90-100 years	1.14552
>100 years	1.16373

*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 normal 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 normal 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	0.90458
5-10 years	0.91939
10-15 years	0.93445
15-20 years	0.94975
20-25 years	0.9653
25-30 years	0.98111
30-35 years	0.99718
35-40 years	1.01351
40-45 years	1.03011
45-50 years	1.04698
50-55 years	1.06413
55-60 years	1.08156
60-70 years	1.09927
70-80 years	1.11727
80-90 years	1.13557
90-100 years	1.15417
>100 years	1.17307

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.