What causes high FT3 thyroid and low Bilirubin direct?

High FT3 thyroid and low Bilirubin direct can be caused by many reasons.

If your FT3 thyroid is in between 2.3 pg/mL and 4.2 pg/mL and your Bilirubin direct is in between 0.1 mg/dL and 0.2 mg/dL then you need not worry as these are the normal ranges for FT3 thyroid and Bilirubin direct respectively. But if your levels are lesser or greater than the above values, then there may be some problem in your body.

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

Ideal values of FT3 thyroid depending on age :

Age	Ideal FT3 thyroid value
<5 years	2.374
5-10 years	2.45
10-15 years	2.528
15-20 years	2.609
20-25 years	2.692
25-30 years	2.778
30-35 years	2.867
35-40 years	2.959
40-45 years	3.054
45-50 years	3.152
50-55 years	3.253
55-60 years	3.357
60-70 years	3.464
70-80 years	3.575
80-90 years	3.689
90-100 years	3.807
>100 years	3.929

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

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

1,37,160

Total number of patients treated

Some examples of conditions that increase or decrease FT3 thyroid levels include:

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

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

Normal range of Bilirubin direct : 0.1 - 0.2 mg/dL

Ideal values of Bilirubin direct depending on age :

Age	Ideal Bilirubin direct value
<5 years	0.11352
5-10 years	0.11715
10-15 years	0.1209
15-20 years	0.12477
20-25 years	0.12876
25-30 years	0.13288
30-35 years	0.13713
35-40 years	0.14152
40-45 years	0.14605
45-50 years	0.15072
50-55 years	0.15554
55-60 years	0.16052
60-70 years	0.16566
70-80 years	0.17096
80-90 years	0.17643
90-100 years	0.18208
>100 years	0.18791

High FT3 thyroid and low Bilirubin direct can be caused by a lot of reasons. If you take FT3 thyroid and Bilirubin direct blood tests and the results are higher than 4.2 pg/mL for FT3 thyroid and lower than 0.1 mg/dL for Bilirubin direct, your physician may recommend more tests to figure out the problem. You might also get these tests if your physician thinks you have some other disease.

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How the FT3 thyroid and Bilirubin direct Tests Are Done :

If your doctor wants FT3 thyroid and Bilirubin direct tests on you, you may need to go through these tests. During the FT3 thyroid and Bilirubin direct blood tests, a pathologist will put a needle into your veins and take out a small quantity of blood. A pathologist is a physician in the medical field who thoroughly studies the causes and effects of disease. Within a few hours you will get your FT3 thyroid and Bilirubin direct Test reports by your pathologist.

Medical References

• MedlinePlus – Triiodothyronine (T3) Tests
• Cleveland Clinic – Triiodothyronine (T3) Test: What It Is, Function & Levels
• MedlinePlus – T3 test
• WebMD – T3 Tests: T3 Uptake Levels, Common Thyroid Conditions, and More
• NIH – How to interpret thyroid function tests