What causes high FT3 thyroid and low Alkaline phosphatase?

High FT3 thyroid and low Alkaline phosphatase can be caused by many reasons.

If your FT3 thyroid is in between 2.3 pg/mL and 4.2 pg/mL and your Alkaline phosphatase is in between 30 U/L and 120 U/L then you need not worry as these are the normal ranges for FT3 thyroid and Alkaline phosphatase 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	2.375
5-10 years	2.453
10-15 years	2.533
15-20 years	2.616
20-25 years	2.702
25-30 years	2.791
30-35 years	2.883
35-40 years	2.978
40-45 years	3.076
45-50 years	3.177
50-55 years	3.281
55-60 years	3.389
60-70 years	3.5
70-80 years	3.615
80-90 years	3.734
90-100 years	3.856
>100 years	3.982

*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 Alkaline phosphatase : 30 - 120 U/L

Ideal values of Alkaline phosphatase depending on age :

Age	Ideal Alkaline phosphatase value
<5 years	30.984
5-10 years	32
10-15 years	33.05
15-20 years	34.134
20-25 years	35.254
25-30 years	36.41
30-35 years	37.604
35-40 years	38.837
40-45 years	40.111
45-50 years	41.427
50-55 years	42.786
55-60 years	44.189
60-70 years	45.638
70-80 years	47.135
80-90 years	48.681
90-100 years	50.278
>100 years	51.927

High FT3 thyroid and low Alkaline phosphatase can be caused by a lot of reasons. If you take FT3 thyroid and Alkaline phosphatase blood tests and the results are higher than 4.2 pg/mL for FT3 thyroid and lower than 30 U/L for Alkaline phosphatase, 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 Alkaline phosphatase Tests Are Done :

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