Is FT4 thyroid 1.88 high, normal or dangerous? What does Free thyroxine level 1.88 mean?

Your FT4 thyroid level of 1.88 is a High FT4 thyroid level.

High FT4 thyroid levels may indicate underlying health problems. The normal range is typically between 0.89 ng/dL and 1.76 ng/dL. If your levels are outside this range, it's important to speak with a healthcare provider. Consulting a doctor is recommended to determine the cause and appropriate next steps.

The normal FT4 thyroid range for men is :0.89 - 1.76 ng/dL

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

Age	Ideal FT4 thyroid value
<5 years	0.907
5-10 years	0.924
10-15 years	0.941
15-20 years	0.959
20-25 years	0.977
25-30 years	0.995
30-35 years	1.014
35-40 years	1.033
40-45 years	1.052
45-50 years	1.072
50-55 years	1.092
55-60 years	1.113
60-70 years	1.134
70-80 years	1.155
80-90 years	1.177
90-100 years	1.199
>100 years	1.222

*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 review it. You'll receive a detailed analysis and personalized treatment guidance via email within 12 hours. If you have additional blood test results besides FT4 thyroid, please include those too—an accurate diagnosis often requires a full view of all abnormalities. Upload blood test report now

1,51,150

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	0.907
5-10 years	0.925
10-15 years	0.943
15-20 years	0.961
20-25 years	0.98
25-30 years	0.999
30-35 years	1.018
35-40 years	1.038
40-45 years	1.058
45-50 years	1.078
50-55 years	1.099
55-60 years	1.12
60-70 years	1.142
70-80 years	1.164
80-90 years	1.187
90-100 years	1.21
>100 years	1.233

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 orders a FT4 thyroid test, it involves a straightforward blood draw to measure your FT4 thyroid levels. A pathologist or lab technician will take a small sample of blood from a vein using a needle. Your FT4 thyroid test results are usually available within a few hours.