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Free t4
T4 is the main hormone produced by the thyroid gland total T4 is amount in blood stream attached to albumin, as well as 'free' in blood stream. Free T4 is just the amount free in serum, not attached to albumin.
Dr. Stanley Schwartz reviewed this
54 year experience in Endocrinology
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Related questions
A 38-year old asked:
What do "free t4" & "anti-microsound" mean?
1 doctor answer • 3 doctors weighed in
A 45-year old female asked:
What does abnormal to free T4 349829 means?
1 doctor answer • 1 doctor weighed in
A 30-year old female asked:
Could you have high total T4 levels but have normal free T4 levels?
1 doctor answer • 2 doctors weighed in
A 25-year old male asked:
THESE ARE MY FREE T4 RESULTS CAN YOU PLEASE EXPLAIN having digestive issues THANK YOU MY VALUE 0.8 ng/dL STANDARD RANGE 0.8 - 1.5 ng/dL?
1 doctor answer • 1 doctor weighed in
A 21-year old male asked:
I've been on the same dose of Levothyroxine for 3 years (0.75mcg) & free t4 has always been normal (1.6). Recently, my FT4 was elevated (2.30) Why???
1 doctor answer • 1 doctor weighed in
A 38-year old asked:
My free T4 test test reads 0.61 ng/dl with the normal value for the lab being 0.8-1.7. Shouldnt I be treated?
1 doctor answer • 1 doctor weighed in
A 44-year old male asked:
I have Normal hearth functions and tests. Would arrhythmias caused by high free t4 stops once levels go back to normal?
1 doctor answer • 1 doctor weighed in
A 67-year old female asked:
Have Hashimotos and on 100 mcgs synthroid. TSH3.46 but free t4 slightly elevated at 1.84 (high end of range 1.78) Is this of concern?
1 doctor answer • 2 doctors weighed in
A 33-year old female asked:
Tsh 3.18 free t4 12.3 is it normal? Thanks?
2 doctor answers • 3 doctors weighed in
A 44-year old asked:
What levels of TSH and free T4 do endocinologists follw?
1 doctor answer • 2 doctors weighed in
A 21-year old female asked:
Free T4 12.20pmol/l and TSH 1.06 miu/l. How is it normal? Thnx
1 doctor answer • 1 doctor weighed in
A 19-year old female asked:
I've been having waves that go through my body and when it gets to my head I feel like I'm going to pass out. No pain. My free T4 is high. Not heart.
1 doctor answer • 2 doctors weighed in
A 62-year old male asked:
Aged 62 yrs. Free T4 is 2.38 and TSH is 0.005. what is the dosage of Eltroxcin to be taken?
1 doctor answer • 2 doctors weighed in
A 47-year old asked:
What is meant by low TSH high free t4?
1 doctor answer • 1 doctor weighed in
A 31-year old female asked:
Free T4 is 16.9 pmol/l, TSH 1.08 miul/l gp said all normal. I feel dizzy, and on overdrive.Advise?
1 doctor answer • 1 doctor weighed in
A male asked:
My Free T4 is 1.14 and TSH (3rd) 4.27. What does this mean for me?
1 doctor answer • 2 doctors weighed in
A 31-year old female asked:
Is FREE T4 LEVEL 13 pmol/L normal and my TSH is 0.5 is this normal?
1 doctor answer • 1 doctor weighed in
A 57-year old male asked:
My free T4 is high 19.30 pmol/l and my TSH is also high 4.530 mlu/l. What does this mean?
1 doctor answer • 4 doctors weighed in
A 35-year old female asked:
Dr ordered TSH and free t4. The results are: TSH 4.28 and free T4 1.1. What does this mean?
1 doctor answer • 1 doctor weighed in
A 18-year old male asked:
My TSH was 3.18 but my free T4 was a 1.8 which was high. Will the high free T4 cause any problems?
1 doctor answer • 1 doctor weighed in
A 22-year old male asked:
I just had a TSH and Free T4 test. My results are: TSH = 5.016 Free T4 = 1.25 What could it mean?
1 doctor answer • 2 doctors weighed in
A female asked:
My estradiol test was 198.4 and my free t4 was 1.4... should i be concerned.. im 32 and have only had 4 periods in my life ?
1 doctor answer • 1 doctor weighed in
A 29-year old male asked:
TSH is 2.534 (reference 0.340 - 5.600), total T4 is 13.37 (reference 6.9 - 12.2), and free T4 is 6.1 (reference 1.1 - 4.6). Should I be worried?
2 doctor answers • 2 doctors weighed in
A female asked:
I took the TSH w reflect to free T4 one year apart. Last year it was 1.56 and this year it is .75. I am symptomatic. Is the .75 ok as it was 1.56?
1 doctor answer • 1 doctor weighed in
A 37-year old female asked:
Can high free T4 detect graves disease?
1 doctor answer • 1 doctor weighed in
A 40-year old asked:
What does normal tsh, but high free T4 mean?
1 doctor answer • 3 doctors weighed in
A 36-year old asked:
What does this test result mean? Suppressed TSH free t4?
1 doctor answer • 1 doctor weighed in
A 34-year old asked:
What are normal levels of free T3 (liothyronine) and free t4?
1 doctor answer • 1 doctor weighed in
A 49-year old female asked:
Are these results normal serum free T4 level 12 and TSH 0.6 many thanks ?
1 doctor answer • 2 doctors weighed in
A 33-year old male asked:
33 yr M 6'2 185 pounds. High TSH levels but normal free T4, whst exactly does this mean?
2 doctor answers • 3 doctors weighed in
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