What causes high FT4 thyroid and low PCV?

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

If your FT4 thyroid is in between 0.89 ng/dL and 1.76 ng/dL and your PCV is in between 39 % and 51 % then you need not worry as these are the normal ranges for FT4 thyroid and PCV 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	0.92177
5-10 years	0.95468
10-15 years	0.98876
15-20 years	1.02406
20-25 years	1.06062
25-30 years	1.09848
30-35 years	1.1377
35-40 years	1.17832
40-45 years	1.22039
45-50 years	1.26396
50-55 years	1.30908
55-60 years	1.35581
60-70 years	1.40421
70-80 years	1.45434
80-90 years	1.50626
90-100 years	1.56003
>100 years	1.61572

*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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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 PCV : 39 - 51 %

Ideal values of PCV depending on age :

Age	Ideal PCV value
<5 years	40.392
5-10 years	41.834
10-15 years	43.327
15-20 years	44.874
20-25 years	46.476
25-30 years	48.135
30-35 years	49.853
35-40 years	49.79
40-45 years	49.727
45-50 years	49.663
50-55 years	49.6
55-60 years	49.537
60-70 years	49.473
70-80 years	49.41
80-90 years	49.347
90-100 years	49.284
>100 years	49.221

High FT4 thyroid and low PCV can be caused by a lot of reasons. If you take FT4 thyroid and PCV blood tests and the results are higher than 1.76 ng/dL for FT4 thyroid and lower than 39 % for PCV, 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 PCV Tests Are Done :

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