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

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

High levels of FT3 thyroid and FT4 thyroid in the blood indicate a variety of health problems. If your blood FT3 thyroid level is between 2.3 pg/mL to 4.2 pg/mL and the FT4 thyroid level is between 0.89 pg/mL to 1.76 ng/dL, then your body does not have any underlying health problems. But if FT3 thyroid and FT4 thyroid levels exceed these levels, you should see a doctor immediately.

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 2.45
5-10 years 2.609
10-15 years 2.779
15-20 years 2.96
20-25 years 3.152
25-30 years 3.357
30-35 years 3.575
35-40 years 3.807
40-45 years 4.054
45-50 years 4.037
50-55 years 4.02
55-60 years 4.003
60-70 years 3.986
70-80 years 3.969
80-90 years 3.952
90-100 years 3.935
>100 years 4.191

If you want your blood test report to be interpreted by FT3 thyroid specialist, then 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

Your FT3 thyroid result may be wrong. Click to know the reason in detail

Click here to know Symptoms of High FT3 thyroid

Click here to know Symptoms of High FT4 thyroid

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

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 0.94785
5-10 years 1.00946
10-15 years 1.07507
15-20 years 1.14495
20-25 years 1.21937
25-30 years 1.29863
30-35 years 1.38304
35-40 years 1.47294
40-45 years 1.56868
45-50 years 1.67064
50-55 years 1.66358
55-60 years 1.65655
60-70 years 1.64956
70-80 years 1.75678
80-90 years 1.74936
90-100 years 1.74197
>100 years 1.73461

Click here to know Symptoms of High FT3 thyroid

Click here to know Symptoms of High FT4 thyroid

Click here to upload your blood test report

Click here to consult a doctor for your Low FT3 thyroid problem

High FT3 thyroid and FT4 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 4.2 pg/mL for FT3 thyroid and more than 1.76 ng/dL for FT4 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 FT3 thyroid and FT4 thyroid test. In most hospitals FT3 thyroid and FT4 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

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