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

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

High levels of FT4 thyroid and APTT 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 APTT level is between 22 ng/dL to 35 seconds, then your body does not have any underlying health problems. But if FT4 thyroid and APTT 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	0.94874
5-10 years	1.01136
10-15 years	1.07811
15-20 years	1.14927
20-25 years	1.22512
25-30 years	1.30598
30-35 years	1.39217
35-40 years	1.48405
40-45 years	1.582
45-50 years	1.68641
50-55 years	1.67906
55-60 years	1.67175
60-70 years	1.66447
70-80 years	1.65722
80-90 years	1.65
90-100 years	1.7589
>100 years	1.75124

*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

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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 APTT range : 22 - 35 seconds

Age-wise ideal APTT level in blood:

Age	Ideal APTT value
<5 years	23.452
5-10 years	25
10-15 years	26.65
15-20 years	28.409
20-25 years	30.284
25-30 years	32.283
30-35 years	34.414
35-40 years	34.264
40-45 years	34.114
45-50 years	33.966
50-55 years	33.818
55-60 years	33.671
60-70 years	33.524
70-80 years	33.378
80-90 years	33.233
90-100 years	33.088
>100 years	32.944

High FT4 thyroid and APTT 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 35 seconds for APTT, 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 APTT test. In most hospitals FT4 thyroid and APTT 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.