What causes high ESR and low FT4 thyroid?

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

If your ESR is in between 0.1 mm/hr and 14 mm/hr 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 ESR 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 ESR : 0.1 - 14 mm/hr

Ideal values of ESR depending on age :

Age	Ideal ESR value
<5 years	2.021
5-10 years	2.042
10-15 years	2.063
15-20 years	2.085
20-25 years	2.107
25-30 years	2.129
30-35 years	2.151
35-40 years	2.174
40-45 years	2.197
45-50 years	2.22
50-55 years	2.243
55-60 years	2.267
60-70 years	2.291
70-80 years	2.315
80-90 years	2.339
90-100 years	2.364
>100 years	2.389

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

If you want your blood test report to be interpreted by ESR specialist, then you can upload your report. Our ESR 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 ESR levels include:

• Rheumatic fever
• Vascular disease
• Autoimmune diseases
• Inflammatory bowel disease
• Heart disease

If you want your blood test report to be interpreted by ESR specialist, you can upload your report. Our ESR 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	0.89935
5-10 years	0.90879
10-15 years	0.91833
15-20 years	0.92797
20-25 years	0.93771
25-30 years	0.94756
30-35 years	0.95751
35-40 years	0.96756
40-45 years	0.97772
45-50 years	0.98799
50-55 years	0.99836
55-60 years	1.00884
60-70 years	1.01943
70-80 years	1.03013
80-90 years	1.04095
90-100 years	1.05188
>100 years	1.06292

High ESR and low FT4 thyroid can be caused by a lot of reasons. If you take ESR and FT4 thyroid blood tests and the results are higher than 14 mm/hr for ESR 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 ESR and FT4 thyroid Tests Are Done :

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

Medical References

• MedlinePlus – Erythrocyte Sedimentation Rate (ESR)
• Cleveland Clinic – Sedimentation Rate (ESR): What It Is & Normal Range
• Mayo Clinic – Sed rate (erythrocyte sedimentation rate)