What does high FT4 thyroid and Vitamin B12 mean in blood test?

High FT4 thyroid and Vitamin B12 can be caused by numerous problems.

High levels of FT4 thyroid and Vitamin B12 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 B12 level is between 211 ng/dL to 911 pg/mL, then your body does not have any underlying health problems. But if FT4 thyroid and Vitamin B12 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	0.94821
5-10 years	1.01022
10-15 years	1.07629
15-20 years	1.14668
20-25 years	1.22167
25-30 years	1.30157
30-35 years	1.38669
35-40 years	1.47738
40-45 years	1.574
45-50 years	1.67694
50-55 years	1.66977
55-60 years	1.66263
60-70 years	1.65552
70-80 years	1.64844
80-90 years	1.75625
90-100 years	1.74874
>100 years	1.74126

*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 B12 range : 211 - 911 pg/mL

Age-wise ideal Vitamin B12 level in blood:

Age	Ideal Vitamin B12 value
<5 years	224.799
5-10 years	239.501
10-15 years	255.164
15-20 years	271.852
20-25 years	289.631
25-30 years	308.573
30-35 years	328.754
35-40 years	350.255
40-45 years	373.162
45-50 years	397.567
50-55 years	423.568
55-60 years	451.269
60-70 years	480.782
70-80 years	512.225
80-90 years	545.725
90-100 years	581.415
>100 years	619.44

High FT4 thyroid and Vitamin B12 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 911 pg/mL for Vitamin B12, 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 B12 test. In most hospitals FT4 thyroid and Vitamin B12 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.