What causes high FT4 thyroid and low D Dimer?

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

If your FT4 thyroid is in between 0.89 ng/dL and 1.76 ng/dL and your D Dimer is in between 0 ug/mL and 0.51 ug/mL then you need not worry as these are the normal ranges for FT4 thyroid and D Dimer 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	0.92133
5-10 years	0.95376
10-15 years	0.98733
15-20 years	1.02208
20-25 years	1.05806
25-30 years	1.0953
30-35 years	1.13385
35-40 years	1.17376
40-45 years	1.21508
45-50 years	1.25785
50-55 years	1.30213
55-60 years	1.34796
60-70 years	1.39541
70-80 years	1.44453
80-90 years	1.49538
90-100 years	1.54802
>100 years	1.60251

*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 D Dimer : 0 - 0.51 ug/mL

Ideal values of D Dimer depending on age :

Age	Ideal D Dimer value
<5 years	0.114
5-10 years	0.118
10-15 years	0.122
15-20 years	0.126
20-25 years	0.13
25-30 years	0.135
30-35 years	0.14
35-40 years	0.145
40-45 years	0.15
45-50 years	0.155
50-55 years	0.16
55-60 years	0.166
60-70 years	0.172
70-80 years	0.178
80-90 years	0.184
90-100 years	0.19
>100 years	0.197

High FT4 thyroid and low D Dimer can be caused by a lot of reasons. If you take FT4 thyroid and D Dimer blood tests and the results are higher than 1.76 ng/dL for FT4 thyroid and lower than 0 ug/mL for D Dimer, 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 D Dimer Tests Are Done :

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