What causes high FT3 thyroid and low Direct LDL cholesterol?

High FT3 thyroid and low Direct LDL cholesterol can be caused by many reasons.

If your FT3 thyroid is in between 2.3 pg/mL and 4.2 pg/mL and your Direct LDL cholesterol is in between 40 mg/dL and 100 mg/dL then you need not worry as these are the normal ranges for FT3 thyroid and Direct LDL cholesterol 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	2.377
5-10 years	2.457
10-15 years	2.54
15-20 years	2.625
20-25 years	2.713
25-30 years	2.804
30-35 years	2.898
35-40 years	2.995
40-45 years	3.096
45-50 years	3.2
50-55 years	3.308
55-60 years	3.419
60-70 years	3.534
70-80 years	3.653
80-90 years	3.776
90-100 years	3.903
>100 years	4.034

*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 Direct LDL cholesterol : 40 - 100 mg/dL

Ideal values of Direct LDL cholesterol depending on age :

Age	Ideal Direct LDL cholesterol value
<5 years	5.168
5-10 years	5.168
10-15 years	5.168
15-20 years	5.168
20-25 years	5.168
25-30 years	5.168
30-35 years	5.168
35-40 years	5.168
40-45 years	5.168
45-50 years	5.168
50-55 years	5.168
55-60 years	5.168
60-70 years	5.168
70-80 years	5.168
80-90 years	5.168
90-100 years	5.168
>100 years	5.168

High FT3 thyroid and low Direct LDL cholesterol can be caused by a lot of reasons. If you take FT3 thyroid and Direct LDL cholesterol blood tests and the results are higher than 4.2 pg/mL for FT3 thyroid and lower than 40 mg/dL for Direct LDL cholesterol, 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 Direct LDL cholesterol Tests Are Done :

If your doctor wants FT3 thyroid and Direct LDL cholesterol tests on you, you may need to go through these tests. During the FT3 thyroid and Direct LDL cholesterol 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 Direct LDL cholesterol 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