What causes high Hemoglobin and low FT4 thyroid?

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

If your Hemoglobin is in between 13 g/dL and 17 g/dL and your FT4 thyroid is in between 0.89 ng/dL and 1.76 ng/dL then you need not worry as these are the normal ranges for Hemoglobin and FT4 thyroid 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 Hemoglobin : 13 - 17 g/dL

Ideal values of Hemoglobin depending on age :

Age	Ideal Hemoglobin value
<5 years	13.13
5-10 years	13.261
10-15 years	13.394
15-20 years	13.528
20-25 years	13.663
25-30 years	13.8
30-35 years	13.938
35-40 years	14.077
40-45 years	14.218
45-50 years	14.36
50-55 years	14.504
55-60 years	14.649
60-70 years	14.795
70-80 years	14.943
80-90 years	15.092
90-100 years	15.243
>100 years	15.395

*Ideal values are calculated based on our database of patient records

If you want your blood test report to be interpreted by Hemoglobin specialist, then you can upload your report. Our Hemoglobin 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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If you want your blood test report to be interpreted by Hemoglobin specialist, you can upload your report. Our Hemoglobin 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 FT4 thyroid : 0.89 - 1.76 ng/dL

Ideal values of FT4 thyroid depending on age :

Age	Ideal FT4 thyroid value
<5 years	0.8989
5-10 years	0.90789
10-15 years	0.91697
15-20 years	0.92614
20-25 years	0.9354
25-30 years	0.94475
30-35 years	0.9542
35-40 years	0.96374
40-45 years	0.97338
45-50 years	0.98311
50-55 years	0.99294
55-60 years	1.00287
60-70 years	1.0129
70-80 years	1.02303
80-90 years	1.03326
90-100 years	1.04359
>100 years	1.05403

High Hemoglobin and low FT4 thyroid can be caused by a lot of reasons. If you take Hemoglobin and FT4 thyroid blood tests and the results are higher than 17 g/dL for Hemoglobin and lower than 0.89 ng/dL for FT4 thyroid, 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 Hemoglobin and FT4 thyroid Tests Are Done :

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