What causes high FT4 thyroid and low Bilirubin total?

High FT4 thyroid and low Bilirubin total can be caused by many reasons.

If your FT4 thyroid is in between 0.89 ng/dL and 1.76 ng/dL and your Bilirubin total is in between 0.2 mg/dL and 1 mg/dL then you need not worry as these are the normal ranges for FT4 thyroid and Bilirubin total 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 FT4 thyroid : 0.89 - 1.76 ng/dL

Ideal values of FT4 thyroid depending on age :

Age	Ideal FT4 thyroid value
<5 years	0.91839
5-10 years	0.94769
10-15 years	0.97792
15-20 years	1.00912
20-25 years	1.04131
25-30 years	1.07453
30-35 years	1.10881
35-40 years	1.14418
40-45 years	1.18068
45-50 years	1.21834
50-55 years	1.25721
55-60 years	1.29731
60-70 years	1.33869
70-80 years	1.38139
80-90 years	1.42546
90-100 years	1.47093
>100 years	1.51785

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

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

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Some examples of conditions that increase or decrease FT4 thyroid levels include:

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

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

Normal range of Bilirubin total : 0.2 - 1 mg/dL

Ideal values of Bilirubin total depending on age :

Age	Ideal Bilirubin total value
<5 years	0.206
5-10 years	0.213
10-15 years	0.22
15-20 years	0.227
20-25 years	0.234
25-30 years	0.241
30-35 years	0.249
35-40 years	0.257
40-45 years	0.265
45-50 years	0.273
50-55 years	0.282
55-60 years	0.291
60-70 years	0.3
70-80 years	0.31
80-90 years	0.32
90-100 years	0.33
>100 years	0.341

High FT4 thyroid and low Bilirubin total can be caused by a lot of reasons. If you take FT4 thyroid and Bilirubin total blood tests and the results are higher than 1.76 ng/dL for FT4 thyroid and lower than 0.2 mg/dL for Bilirubin total, 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 FT4 thyroid and Bilirubin total Tests Are Done :

If your doctor wants FT4 thyroid and Bilirubin total tests on you, you may need to go through these tests. During the FT4 thyroid and Bilirubin total 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 FT4 thyroid and Bilirubin total Test reports by your pathologist.