What does high FT4 thyroid and FT3 thyroid mean in blood test?

High FT4 thyroid and FT3 thyroid can be caused by numerous problems.

High levels of FT4 thyroid and FT3 thyroid 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 FT3 thyroid level is between 2.3 ng/dL to 4.2 pg/mL, then your body does not have any underlying health problems. But if FT4 thyroid and FT3 thyroid 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 0.94776
5-10 years 1.00927
10-15 years 1.07477
15-20 years 1.14452
20-25 years 1.2188
25-30 years 1.2979
30-35 years 1.38213
35-40 years 1.47183
40-45 years 1.56735
45-50 years 1.66907
50-55 years 1.66204
55-60 years 1.65504
60-70 years 1.64807
70-80 years 1.75503
80-90 years 1.74764
90-100 years 1.74028
>100 years 1.73295

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

Your FT4 thyroid result may be wrong. Click to know the reason in detail

Click here to know Symptoms of High FT4 thyroid

Click here to know Symptoms of High FT3 thyroid

Besides Lab test failures, there are many other reasons for inaccurate blood results. Know the common reasons for inaccurate blood test results

Normal FT3 thyroid range : 2.3 - 4.2 pg/mL

Age-wise ideal FT3 thyroid level in blood:
Age Ideal FT3 thyroid value
<5 years 2.449
5-10 years 2.608
10-15 years 2.777
15-20 years 2.957
20-25 years 3.149
25-30 years 3.353
30-35 years 3.571
35-40 years 3.803
40-45 years 4.05
45-50 years 4.033
50-55 years 4.016
55-60 years 3.999
60-70 years 3.983
70-80 years 3.966
80-90 years 3.949
90-100 years 3.932
>100 years 4.187

Click here to know Symptoms of High FT4 thyroid

Click here to know Symptoms of High FT3 thyroid

Click here to upload your blood test report

Click here to consult a doctor for your Low FT4 thyroid problem

High FT4 thyroid and FT3 thyroid 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 4.2 pg/mL for FT3 thyroid, 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 FT3 thyroid test. In most hospitals FT4 thyroid and FT3 thyroid 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.

Click here to upload your blood test report

Click here to consult a doctor for your Low FT4 thyroid problem

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