What causes high WBC and low FT3 thyroid?

High WBC and low FT3 thyroid can be caused by many reasons.

If your WBC is in between 4 thou/uL and 11 thou/uL and your FT3 thyroid is in between 2.3 pg/mL and 4.2 pg/mL then you need not worry as these are the normal ranges for WBC and FT3 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 WBC : 4 - 11 thou/uL

Ideal values of WBC depending on age :

Age	Ideal WBC value
<5 years	4.06
5-10 years	4.12
10-15 years	4.181
15-20 years	4.243
20-25 years	4.306
25-30 years	4.37
30-35 years	4.435
35-40 years	4.501
40-45 years	4.568
45-50 years	4.636
50-55 years	4.705
55-60 years	4.775
60-70 years	4.846
70-80 years	4.918
80-90 years	4.991
90-100 years	5.065
>100 years	5.14

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

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

• Infections, most commonly caused by bacteria and some viruses, less commonly by fungi or parasites
• Bone marrow damage
• Overwhelming infections (e.g., sepsis)
• Inflammation or inflammatory conditions such as vasculitis or inflammatory bowel disease
• Myelodysplastic syndrome

If you want your blood test report to be interpreted by WBC specialist, you can upload your report. Our WBC 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 FT3 thyroid : 2.3 - 4.2 pg/mL

Ideal values of FT3 thyroid depending on age :

Age	Ideal FT3 thyroid value
<5 years	2.334
5-10 years	2.369
10-15 years	2.404
15-20 years	2.44
20-25 years	2.476
25-30 years	2.513
30-35 years	2.55
35-40 years	2.588
40-45 years	2.627
45-50 years	2.666
50-55 years	2.706
55-60 years	2.746
60-70 years	2.787
70-80 years	2.829
80-90 years	2.871
90-100 years	2.914
>100 years	2.957

High WBC and low FT3 thyroid can be caused by a lot of reasons. If you take WBC and FT3 thyroid blood tests and the results are higher than 11 thou/uL for WBC and lower than 2.3 pg/mL for FT3 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 WBC and FT3 thyroid Tests Are Done :

If your doctor wants WBC and FT3 thyroid tests on you, you may need to go through these tests. During the WBC and FT3 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 WBC and FT3 thyroid Test reports by your pathologist.