What causes high FT4 thyroid and low Phosphate?

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

If your FT4 thyroid is in between 0.89 ng/dL and 1.76 ng/dL and your Phosphate is in between 2.4 mg/dL and 4.5 mg/dL then you need not worry as these are the normal ranges for FT4 thyroid and Phosphate 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	0.9224
5-10 years	0.95598
10-15 years	0.99078
15-20 years	1.02684
20-25 years	1.06422
25-30 years	1.10296
30-35 years	1.14311
35-40 years	1.18472
40-45 years	1.22784
45-50 years	1.27253
50-55 years	1.31885
55-60 years	1.36686
60-70 years	1.41661
70-80 years	1.46817
80-90 years	1.52161
90-100 years	1.577
>100 years	1.6344

*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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Total number of patients treated

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 Phosphate : 2.4 - 4.5 mg/dL

Ideal values of Phosphate depending on age :

Age	Ideal Phosphate value
<5 years	2.487
5-10 years	2.578
10-15 years	2.672
15-20 years	2.769
20-25 years	2.87
25-30 years	2.974
30-35 years	3.082
35-40 years	3.194
40-45 years	3.31
45-50 years	3.43
50-55 years	3.555
55-60 years	3.684
60-70 years	3.818
70-80 years	3.957
80-90 years	4.101
90-100 years	4.25
>100 years	4.405

High FT4 thyroid and low Phosphate can be caused by a lot of reasons. If you take FT4 thyroid and Phosphate blood tests and the results are higher than 1.76 ng/dL for FT4 thyroid and lower than 2.4 mg/dL for Phosphate, 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 Phosphate Tests Are Done :

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