What causes high FT3 thyroid and low Potassium?

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

If your FT3 thyroid is in between 2.3 pg/mL and 4.2 pg/mL and your Potassium is in between 3.5 mmol/L and 5.1 mmol/L then you need not worry as these are the normal ranges for FT3 thyroid and Potassium 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	2.38
5-10 years	2.462
10-15 years	2.547
15-20 years	2.635
20-25 years	2.726
25-30 years	2.82
30-35 years	2.918
35-40 years	3.019
40-45 years	3.123
45-50 years	3.231
50-55 years	3.343
55-60 years	3.459
60-70 years	3.579
70-80 years	3.703
80-90 years	3.831
90-100 years	3.964
>100 years	4.101

*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 Potassium : 3.5 - 5.1 mmol/L

Ideal values of Potassium depending on age :

Age	Ideal Potassium value
<5 years	3.621
5-10 years	3.746
10-15 years	3.876
15-20 years	4.01
20-25 years	4.149
25-30 years	4.293
30-35 years	4.442
35-40 years	4.596
40-45 years	4.755
45-50 years	4.92
50-55 years	5.09
55-60 years	5.084
60-70 years	5.078
70-80 years	5.072
80-90 years	5.065
90-100 years	5.059
>100 years	5.053

High FT3 thyroid and low Potassium can be caused by a lot of reasons. If you take FT3 thyroid and Potassium blood tests and the results are higher than 4.2 pg/mL for FT3 thyroid and lower than 3.5 mmol/L for Potassium, 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 Potassium Tests Are Done :

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