What does high FT4 thyroid and Vitamin D mean in blood test?

High FT4 thyroid and Vitamin D can be caused by numerous problems.

High levels of FT4 thyroid and Vitamin D in the blood indicate a variety of health problems. If your blood FT4 thyroid level is between 0.89 ng/dL to 1.76 ng/dL and the Vitamin D level is between 75 ng/dL to 250 nmol/L, then your body does not have any underlying health problems. But if FT4 thyroid and Vitamin D levels exceed these levels, you should see a doctor immediately.

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	0.94838
5-10 years	1.01059
10-15 years	1.07688
15-20 years	1.14752
20-25 years	1.2228
25-30 years	1.30302
30-35 years	1.3885
35-40 years	1.47959
40-45 years	1.57665
45-50 years	1.68008
50-55 years	1.67285
55-60 years	1.66565
60-70 years	1.65849
70-80 years	1.65136
80-90 years	1.75969
90-100 years	1.75212
>100 years	1.74458

*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

1,37,160

Total number of patients treated

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 Vitamin D range : 75 - 250 nmol/L

Age-wise ideal Vitamin D level in blood:

Age	Ideal Vitamin D value
<5 years	79.92
5-10 years	85.163
10-15 years	90.75
15-20 years	96.703
20-25 years	103.047
25-30 years	109.807
30-35 years	117.01
35-40 years	124.686
40-45 years	132.865
45-50 years	141.581
50-55 years	150.869
55-60 years	160.766
60-70 years	171.312
70-80 years	182.55
80-90 years	194.525
90-100 years	207.286
>100 years	220.884

High FT4 thyroid and Vitamin D 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 1.76 ng/dL for FT4 thyroid and more than 250 nmol/L for Vitamin D, 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 FT4 thyroid and Vitamin D test. In most hospitals FT4 thyroid and Vitamin D 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.