Q: i went to the doctor for symptoms of what i thought underactive thyroid but my tests came back with extremely high free t4 levels.what could this be ?

can vary: High level of thyroxine (t4) confirms hyperthyroidism. Some symptoms, like fatigue, overlap between hypothyroidism and hyperthyroidism.Common hyperthyr. Symptoms include heat intolerance, weight loss, trouble sleeping, fatigue, muscle weakness, nervousness, irritability, hand tremors, rapid or irregular heartbeat, mood swings, or frequent diarrhea and bowel movements and enlarged thyroid gland.

Q: my pcp wants me to start taking synthroid 25 mcg to treat a mildly elevated tsh with normal t4. i have no symptoms. i'm 5'9" 142 lbs, with normal cholesterol levels. i have occasional palpitations with normal ekg's. since december 2014 until november 2015

Subclinical thyroid: Sub-clinical hypothyroidism is a grey area..Some start low dose synthroid (thyroxine) . It may have beneficial effects on lipids and cardiac function. May consider repeating TSH in 6 weeks and if again low then starting, check thyroid antibodies. TSH may wax and wane between abn and normal over months . f/u w/doc http://www.aafp.org/afp/1998/0215/p776.html

Q: my pcp wants me to start taking synthroid 25 mcg to treat a mildly elevated tsh with normal t4. i have no symptoms. i'm 5'9" 142 lbs, with normal cholesterol levels. i have occasional palpitations with normal ekg's. for about a year, my tsh with reflex to

Check furthers labs: Recommend having follow up testing on actual thyroid hormone levels like T4, T3 (liothyronine), (liothyronine) Reverse T3 (liothyronine) and T3 (liothyronine) uptake.

Q: what does high t4 level mean?

It can mean: An elevated level of thyroid hormone, either due to hyperthyroidism or thyroid inflammation. It can be falsely elevated by estrogen therapy. Other thyroid tests are more reliable. The T3 (liothyronine) you're receiving is potentially dangerous and should not be taken. It can not me measured in the blood and has potential toxicity. Use brand name T4 only if replacement is required, .

Q: is a t4 free level of 1.24 high or low?

Looks normal: Assays for ft4 differ, but this appears to be about normal. Check with your doctor.

Q: could you have high total t4 levels but have normal free t4 levels?

Yes: Total T4 reflects T4 bound to proteins in your blood. Free T4 measures the amount of T4 that is free and not bound so that it can be metabolically active. Thus women taking Estrogens (as in bc pills) have elevated levels of thyroid binding globulin and elevated total t4, but normal free t4.

Q: why is my t4 level extremely elevated?

You could have : Overactive thyroid function. Or you could be on the incorrect dose of thyroid replacement.

Q: can high free t4 level cause lightheadedness?

Hyperthyroidism : Hyperthyroidism can lead to dizziness. Find out the cause for the hyperthyroidism and get it treated accordingly.

Question 1

can a high tsh level but normal t4 cause hypothyroid symptoms or not?

Accepted Answer

Maybe: Your symptoms may be from subtle hypothyroidism. Although your T4 is in the normal range, it may be lower than it was. Some people are sensitive to minor variations in t4. On the other hand, the symptoms of hypothyroid can be due to other things. Once you get treated with levothyroxine, you will know.

Question 2

at 8 weeks pregnant my t4 levels are slightly elevated at 13.1. recently i had symptoms of hyperemesis gravidarum as well. is this high enough to treat?

Accepted Answer

NORMAL!!: T4 should be between 12-15 in pregnancy! do not let anyone treat that! HCG stimulates thyroid to increase production since thyroid is most important hormone in early pregnancy for fetus. After 13 w baby makes own thyroid. The best indicator of healthy thyroid level in pregnancy is t4. 12-15 and TSH < 2.5.

Question 3

i went to the doctor for symptoms of what i thought underactive thyroid but my tests came back with extremely high free t4 levels.what could this be ?

Accepted Answer

can vary: High level of thyroxine (t4) confirms hyperthyroidism. Some symptoms, like fatigue, overlap between hypothyroidism and hyperthyroidism.Common hyperthyr. Symptoms include heat intolerance, weight loss, trouble sleeping, fatigue, muscle weakness, nervousness, irritability, hand tremors, rapid or irregular heartbeat, mood swings, or frequent diarrhea and bowel movements and enlarged thyroid gland.

Question 4

my pcp wants me to start taking synthroid 25 mcg to treat a mildly elevated tsh with normal t4. i have no symptoms. i'm 5'9" 142 lbs, with normal cholesterol levels. i have occasional palpitations with normal ekg's. since december 2014 until november 2015

Accepted Answer

Subclinical thyroid: Sub-clinical hypothyroidism is a grey area..Some start low dose synthroid (thyroxine) . It may have beneficial effects on lipids and cardiac function. May consider repeating  TSH in 6 weeks and if again low then starting, check thyroid antibodies. TSH may wax and wane between abn and  normal over months . f/u w/doc

http://www.aafp.org/afp/1998/0215/p776.html

Question 5

my pcp wants me to start taking synthroid 25 mcg to treat a mildly elevated tsh with normal t4. i have no symptoms. i'm 5'9" 142 lbs, with normal cholesterol levels. i have occasional palpitations with normal ekg's. for about a year, my tsh with reflex to

Accepted Answer

Check furthers labs: Recommend having follow up testing on actual thyroid hormone levels like T4, T3 (liothyronine), (liothyronine) Reverse T3 (liothyronine) and T3 (liothyronine) uptake.

Question 6

what does high t4 level mean?

Accepted Answer

It can mean: An elevated level of thyroid hormone, either due to hyperthyroidism or thyroid inflammation. It can be falsely elevated by estrogen therapy. Other thyroid tests are more reliable. The T3 (liothyronine) you're receiving is potentially dangerous and should not be taken. It can not me measured in the blood and has potential toxicity. Use brand name T4 only if replacement is required, .

Question 7

is a t4 free level of 1.24 high or low?

Accepted Answer

Looks normal: Assays for ft4 differ, but this appears to be about normal.  Check with your doctor.

Question 8

could you have high total t4 levels but have normal free t4 levels?

Accepted Answer

Yes: Total T4 reflects T4 bound to proteins in your blood. Free T4 measures the amount of T4 that is free and not bound so that it can be metabolically active. Thus women taking Estrogens (as in bc pills) have elevated levels of thyroid binding globulin and elevated total t4, but normal free t4.

Question 9

why is my t4 level extremely elevated?

Accepted Answer

You could have : Overactive thyroid function.  Or you could be on the incorrect dose of thyroid replacement.

Question 10

can high free t4 level cause lightheadedness?

Accepted Answer

Hyperthyroidism : Hyperthyroidism can lead to dizziness.  Find out the cause for the hyperthyroidism and get it treated accordingly.

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Doctor answers about:

High t4 levels symptoms

A member asked:

Can a high tsh level but normal t4 cause hypothyroid symptoms or not?

A member asked:

At 8 weeks pregnant my t4 levels are slightly elevated at 13.1. recently i had symptoms of hyperemesis gravidarum as well. is this high enough to treat?

A member asked:

I went to the doctor for symptoms of what i thought underactive thyroid but my tests came back with extremely high free t4 levels.what could this be ?

A member asked:

My pcp wants me to start taking synthroid 25 mcg to treat a mildly elevated tsh with normal t4. i have no symptoms. i'm 5'9" 142 lbs, with normal cholesterol levels. i have occasional palpitations with normal ekg's. since december 2014 until november 2015

A member asked:

My pcp wants me to start taking synthroid 25 mcg to treat a mildly elevated tsh with normal t4. i have no symptoms. i'm 5'9" 142 lbs, with normal cholesterol levels. i have occasional palpitations with normal ekg's. for about a year, my tsh with reflex to

A member asked:

What does high t4 level mean?

A member asked:

Is a t4 free level of 1.24 high or low?

A member asked:

Could you have high total t4 levels but have normal free t4 levels?

A member asked:

Why is my t4 level extremely elevated?

A member asked:

Can high free t4 level cause lightheadedness?

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