What does high FT4 thyroid and Total serum iron mean in blood test?

High FT4 thyroid and Total serum iron can be caused by numerous problems.

High levels of FT4 thyroid and Total serum iron 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 Total serum iron level is between 40 ng/dL to 190 mcg/dL, then your body does not have any underlying health problems. But if FT4 thyroid and Total serum iron 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	0.94981
5-10 years	1.01364
10-15 years	1.08176
15-20 years	1.15445
20-25 years	1.23203
25-30 years	1.31482
30-35 years	1.40318
35-40 years	1.49747
40-45 years	1.5981
45-50 years	1.70549
50-55 years	1.69779
55-60 years	1.69012
60-70 years	1.68249
70-80 years	1.67489
80-90 years	1.66732
90-100 years	1.65979
>100 years	1.6523

*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 Total serum iron range : 40 - 190 mcg/dL

Age-wise ideal Total serum iron level in blood:

Age	Ideal Total serum iron value
<5 years	42.688
5-10 years	45.557
10-15 years	48.618
15-20 years	51.885
20-25 years	55.372
25-30 years	59.093
30-35 years	63.064
35-40 years	67.302
40-45 years	71.825
45-50 years	76.652
50-55 years	81.803
55-60 years	87.3
60-70 years	93.167
70-80 years	99.428
80-90 years	106.11
90-100 years	113.241
>100 years	120.851

High FT4 thyroid and Total serum iron 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 190 mcg/dL for Total serum iron, 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 Total serum iron test. In most hospitals FT4 thyroid and Total serum iron 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.