What causes high FT3 thyroid and low MCV?

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

If your FT3 thyroid is in between 2.3 pg/mL and 4.2 pg/mL and your MCV is in between 83 fL and 101 fL then you need not worry as these are the normal ranges for FT3 thyroid and MCV 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	2.37
5-10 years	2.442
10-15 years	2.516
15-20 years	2.593
20-25 years	2.672
25-30 years	2.753
30-35 years	2.837
35-40 years	2.924
40-45 years	3.013
45-50 years	3.105
50-55 years	3.2
55-60 years	3.298
60-70 years	3.399
70-80 years	3.503
80-90 years	3.61
90-100 years	3.72
>100 years	3.833

*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 MCV : 83 - 101 fL

Ideal values of MCV depending on age :

Age	Ideal MCV value
<5 years	85.532
5-10 years	88.141
10-15 years	90.829
15-20 years	93.599
20-25 years	96.454
25-30 years	99.396
30-35 years	99.304
35-40 years	99.212
40-45 years	99.12
45-50 years	99.028
50-55 years	98.936
55-60 years	98.844
60-70 years	98.752
70-80 years	98.66
80-90 years	98.568
90-100 years	98.476
>100 years	98.385

High FT3 thyroid and low MCV can be caused by a lot of reasons. If you take FT3 thyroid and MCV blood tests and the results are higher than 4.2 pg/mL for FT3 thyroid and lower than 83 fL for MCV, 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 MCV Tests Are Done :

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