What causes high FT4 thyroid and low RDW CV?

high FT4 thyroid

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

If your FT4 thyroid is in between 0.89 ng/dL and 1.76 ng/dL and your RDW CV is in between 11.6 % and 14 % then you need not worry as these are the normal ranges for FT4 thyroid and RDW CV respectively. But if your levels are lesser or greater than the above values, then there may be some problem in your body.

Important - Go to the end of this article and read how our patients treated their FT4 thyroid levels 

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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 0.92284
5-10 years 0.95689
10-15 years 0.9922
15-20 years 1.02881
20-25 years 1.06677
25-30 years 1.10613
30-35 years 1.14695
35-40 years 1.18927
40-45 years 1.23315
45-50 years 1.27865
50-55 years 1.32583
55-60 years 1.37475
60-70 years 1.42548
70-80 years 1.47808
80-90 years 1.53262
90-100 years 1.58917
>100 years 1.64781

*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

1,37,160

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 RDW CV : 11.6 - 14 %

Ideal values of RDW CV depending on age :
Age Ideal RDW CV value
<5 years 12.028
5-10 years 12.472
10-15 years 12.932
15-20 years 13.409
20-25 years 13.904
25-30 years 13.885
30-35 years 13.866
35-40 years 13.847
40-45 years 13.828
45-50 years 13.809
50-55 years 13.791
55-60 years 13.772
60-70 years 13.753
70-80 years 13.734
80-90 years 13.716
90-100 years 13.697
>100 years 13.678
Chest pain

Can Low or High thyroid cause Heart Problems?

Read on to know how abnormal FT4 thyroid affects heart

Know more

High FT4 thyroid and low RDW CV can be caused by a lot of reasons. If you take FT4 thyroid and RDW CV blood tests and the results are higher than 1.76 ng/dL for FT4 thyroid and lower than 11.6 % for RDW CV, 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 RDW CV Tests Are Done :

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

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Dr. Dwayne Michaels
Guest Author
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Dr. Dwayne Michaels
Guest Author
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