What does high WBC and FT4 thyroid mean in blood test?

High WBC and FT4 thyroid can be caused by numerous problems.

High levels of WBC and FT4 thyroid in the blood indicate a variety of health problems. If your blood WBC level is between 4 thou/uL to 11 thou/uL and the FT4 thyroid level is between 0.89 thou/uL to 1.76 ng/dL, then your body does not have any underlying health problems. But if WBC and FT4 thyroid levels exceed these levels, you should see a doctor immediately.

Normal WBC range : 4 - 11 thou/uL

Age-wise ideal WBC level in blood:

Age	Ideal WBC value
<5 years	4.18
5-10 years	4.368
10-15 years	4.565
15-20 years	4.77
20-25 years	4.985
25-30 years	5.209
30-35 years	5.443
35-40 years	5.688
40-45 years	5.944
45-50 years	6.211
50-55 years	6.49
55-60 years	6.782
60-70 years	7.087
70-80 years	7.406
80-90 years	7.739
90-100 years	8.087
>100 years	8.451

*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 FT4 thyroid range : 0.89 - 1.76 ng/dL

Age-wise ideal FT4 thyroid level in blood:

Age	Ideal FT4 thyroid value
<5 years	0.93005
5-10 years	0.9719
10-15 years	1.01564
15-20 years	1.06134
20-25 years	1.1091
25-30 years	1.15901
30-35 years	1.21117
35-40 years	1.26567
40-45 years	1.32263
45-50 years	1.38215
50-55 years	1.44435
55-60 years	1.50935
60-70 years	1.57727
70-80 years	1.64825
80-90 years	1.72242
90-100 years	1.71893
>100 years	1.71545

High WBC and FT4 thyroid levels in the blood can cause a number of health problems. Your GP may recommend follow-up tests to get an important picture of your overall health and well-being. If the results are greater than 11 thou/uL for WBC and more than 1.76 ng/dL for FT4 thyroid, you may also need some follow-up tests that will help detect the underlying disease early.

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How is a blood test performed in the lab?

Depending on the symptoms you are experiencing, your doctor may order a WBC and FT4 thyroid test. In most hospitals WBC and FT4 thyroid results can be obtained within three to six hours after blood is taken. The blood is usually drawn from a vein on the inside of the elbow or the back of the hand. Drink plenty of water before your appointment. If you experience any symptoms that you are concerned about are out of the ordinary, call your doctor immediately.