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Doctor insights on: Low T4 Thyroid

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23 yrs old f; thyroid peroxidase 13 (norm); thyroglobulin, antibody 3.0 (high); TSH 10.850 (high); nomal T3 (liothyronine) & t4. Hashimotos? Possible thyroid cancer

23 yrs old f; thyroid peroxidase 13 (norm); thyroglobulin, antibody 3.0 (high); TSH 10.850 (high); nomal T3 (liothyronine) & t4. Hashimotos? Possible thyroid cancer

Possible to 1st : Thyroglobulin is a test that is helpful after someone has surgery for the most common thyroid cancer. Thyroid function tests can test how well your thyroid is working. If there is concern for cancer it is helpful to get a thyroid ultrasound and then a biopsy if clinically indicated. ...Read more

Dr. Herman Hammerstead
13 doctors shared insights

Thyroid (Definition)

The thyroid is an endocrine gland that sits in the lower part of the neck. It produces thyroid hormone - which ...Read more


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Thyroid u/s rl 2.2x1.5x6.1, ll 1.8x1.1x5.1. Mildly heterogeneous exhotexture.T4free 1.3 t3total 94 TSH .63. Having many thyroid symptoms.Thyroid prob?

Thyroid u/s rl 2.2x1.5x6.1, ll 1.8x1.1x5.1. Mildly heterogeneous exhotexture.T4free 1.3 t3total 94 TSH .63. Having many thyroid symptoms.Thyroid prob?

Probably not thyroid: Nodule does not appear autonomous ( doing its own thing) TSH still normal. No sptoms related to normal thyroid function. Sptoms usually come from an underlying autoimmune cponent. ...Read more

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Evaluate? Free T3 2.7 Free T4 1.36 TSH 1.6 MCV 106.9 MCH 34.6 Cl 110 RDW 11.2 B12 245 UA RBC 10-20 Occult Blood 2+ On Synthroid (thyroxine) No alcohol B12 per Dr

Evaluate? Free T3 2.7 Free T4 1.36 TSH 1.6 MCV 106.9 MCH 34.6 Cl 110 RDW 11.2 B12 245 UA RBC 10-20 Occult Blood 2+ On Synthroid (thyroxine) No alcohol B12 per Dr

Too much and yet....: Not enough info. Labs must be interpreted in light of your clinical situation. Your thyroid appears normal. Your red blood cells are uniformly and mildly enlarged. This may be that you had B12 deficiency and recently started B12. There are some red cells in your urine and some in your stool? These need explanation. See the doc who ordered these. ...Read more

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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. ...Read more

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4-21-14 Thyroidectomy r/t thyroiditis, goiter. On Synthroid (thyroxine) 137 mcg- hypo s/s returning have felt great for months. Would adding Cytomel help?

4-21-14 Thyroidectomy r/t thyroiditis, goiter.  On Synthroid (thyroxine) 137 mcg- hypo s/s returning have felt great for months.  Would adding Cytomel help?

Not specific: The signs & symptoms of hypothyroidism are not specific for hypothyroidism (not a single one). Recheck your thyroid labs. If they're normal, your symptoms are due to something else. Having said that, I'm happy to do a trial of Cytomel with the Synthroid (thyroxine) in patients who want to try as long as I don't make them hyperthyroid. Some people report feeling better with comparable labs taking a little T3. ...Read more

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Female 35 fasting: TSH 1.88 and T4 free 1.2 Nonfasting results 6 months ago: TSH 1.16 and T4 free 1.4 Did fasting raise my TSH? Do I have an issue?

Thyroid is normal: Both levels are normal. the difference in the numbers is not significant. Fasting will not effect your TSH level. You do not have any issue with your thyroid. ...Read more

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Normal TSH low ft4 ?

Normal TSH low ft4 ?

Normal thyroid: A normal TSH means your body knows that your thyroid is normal. ...Read more

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My TSH level is 122, total T3 (liothyronine) 78 and total T4 2.2 what does that mean?

My TSH level is 122, total T3 (liothyronine) 78 and total T4 2.2 what does that mean?

Hypothyroidism: You are already on thyroxine; meaning you are diagnosed with hypothyroidism. Under active thyroid. Your TSH is high;t3;t4 levels are low. Your doctor has to adjust medication till the levels are in therapeutic range. Why you have hypothyroidism? Is it goiter, nodule or autoimmune?See an endocrinologist. Pls. Read thyroid nodule- http://doctorrajput.Com . Thanks. ...Read more

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Triiodothyronine : 0.76 ng/ml; thyroxine : 5.27 ; thyroid stimulating hormone : 1.15. Is this normal?

Triiodothyronine : 0.76 ng/ml; thyroxine : 5.27 ; thyroid stimulating hormone : 1.15. Is this normal?

Probably: In interpreting thyroid hormone levels, you have to consider several things: What is the clinical situation at the time of the lab draw- as stress, medications, even pregnancy can all effect the levels and what they should be. Every lab also has a slightly different 'normal' range depending on how they measure the hormone. Seeing the trend also helps - Are they stable, going up or down? ...Read more

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Endocrinologist says my thyroid 2 low. Tsh-3gen 6.30 FTI 2.4 TotT4 8.8 T-uptake 27.8 wants to increase meds. I have no T gland. No symp. What's low?

Endocrinologist says my thyroid 2 low. Tsh-3gen 6.30 FTI 2.4 TotT4 8.8 T-uptake 27.8 wants to increase meds. I have no T gland. No symp. What's low?

Thyroid hormone.: We all need thyroid hormones for proper health. If you had your thyroid removed, you will have to take thyroid replacement meds for the rest of your life. If you are taking them, the level has to be monitored to be sure you are getting enough for your body to function normally. If your level is low, the medicine is increased and the level is rechecked regularly to make sure it is stays normal ...Read more

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Tsh 4.0 T3 (liothyronine) 27 T4 7.4 testosterone 58 tpo antibody 359 pregnant 7 weeks having chills no fever no overweight BMI 23 worried if something serious help?

Tsh 4.0 T3 (liothyronine) 27 T4 7.4 testosterone 58 tpo antibody 359 pregnant 7 weeks having chills no fever no overweight BMI 23 worried if something serious help?

Check with Dr.: Your tpo antibody is high, and more than a third of the women who test positive for thyroid peroxidase (tpo) antibodies while pregnant go on to develop abnormal thyroid hormone levels within two years, more followup needs to be done with these women. Your body maybe attacking your thyroid gland. This is not an emergency please do not panic and talk to your doctor. ...Read more

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High blood pressure 160 /100 my age 29 y.Test show hi level of triglycerides , hi level (ldl) low level( hdl) been a year on healthy diet lose 10 kg?

High blood pressure 160 /100 my age 29 y.Test show hi level of  triglycerides , hi level (ldl)  low level( hdl) been a year on healthy diet lose 10 kg?

Keep going : The current weight is not provided, but if not at ideal body weight, further weight will likely help. Weight and diet are two pieces of the puzzle. Environmental factors and genetics predisposition are others. Blood pressure of 160/100 is hi for a 29 year old and most would start blood pressure medications at this point. Great job on the < 20 pounds weight loss. ...Read more

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Can low thyroid levels cause grandmal seizure?

Can low thyroid levels cause grandmal seizure?

Typically not: Low thyroid typically causes one to slow down, gain weight, have memory problems, and a number of other symptoms... But not typically seizures. ...Read more

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+ Antimitochondrial M2 antibodies w/ 4previous elevated ALP's. Most recent ALP normal. Still suggestive for PBC?

+ Antimitochondrial  M2 antibodies w/ 4previous elevated ALP's. Most recent ALP normal. Still suggestive for PBC?

No: The diagnosis of PBC is made through liver biopsy. The other best tool is the biliruben. Taken together they give a diagnosis and prognosis for survival. As you know PBC is though to be an auto immune disease. ...Read more

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Low TSH Borderline low T4 normal t3 (liothyronine). Thyroid uptake scan..low uptake noted w\o nodules. Radiologist said HYPOTHYROIDISM?! All other possible test norm

Need follow-up: All laboratory results need to be interpreted in the clinical context and the doctor who ordered the tests is usually in the best position to do that. Having said that, there is inconsistency in your results. Both TSH and T4 being low does not add up. You may need to repeat the lab tests, not necessarily the scan, in about 6 months to see what direction these results are going in. ...Read more

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If my tsh low, t3 (liothyronine) and t4 is normal, is it hypo or hyper thyroidism? Should I take iodine? Ultra sound is normal, without pathology.

If my tsh low, t3 (liothyronine) and t4 is normal, is it hypo or hyper thyroidism? Should I take iodine? Ultra sound is normal, without pathology.

Hypothyroid: The answer to this question depends on what your exact levels are and what type of symptoms you have. "Subclinical Hypothyroidsim" sometimes presents in the manner you describe. ...Read more

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I have hashimito's thyroidism, hypothyroidism, what foods should I avoid? Am taking T4 50mg during the week, T4 75mg at weekends. Thank you.

I have hashimito's thyroidism, hypothyroidism, what foods should I avoid? Am taking T4 50mg during the week, T4 75mg at weekends. Thank you.

Coffee with pills: Coffee decreases the absorption of T4, so don't drink coffee when you are taking your medicine. Otherwise, no dietary restrictions ...Read more

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We have case , femal patien , age 60 years, the TSH less than 0.05 while T4 in normal range , and she has not any symptom of thyroidism , is it ok ?

Subclinical hyperthy: A low TSH with a normal T4 and no symptoms is usually subclinical hyperthyroidism. She may have a multinodular goiter that is autonomously functioning, or very early graves disease. A T3 (liothyronine) level and free T4 level should be checked. There is a higher risk of developing atrial fibrillation despite the normal T4 level, but many endocrinologists would just follow her levels for progression. ...Read more

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I had bloodwork done for my thyroid and was told my T4's were extremely low. What does that mean?

Hypothyroidism: Low T4 is an indication of the thyroid gland not producing enough thyroxine hormone which is necessary for overall body metabolism. Need further work up as to why your T4 is low. Will ultimately need thyroxine replacement therapy. Symptoms of fatigue , constipation, dry skin, weight gain and hair loss will continue without thyroxine replacement. ...Read more

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What is brand name T4 replacement? Is that a name brand of mmedication for low thyroid?

What is brand name T4 replacement? Is that a name brand of mmedication for low thyroid?

Yes.: When providers say brand name they are often referring to synthroid. Some folks still debate the reliability of generic levothyroxine. Personal opinion: use the one that fits you best. If you change manufacturers check a level. ...Read more

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I'd routine check of my thyroid and TSH is low but T3 (liothyronine) and T4 are in normal range.Should I be worried?What can I do to help besides the doc? Food?Supl?

I'd routine check of my thyroid and TSH is low but T3 (liothyronine) and T4 are in normal range.Should I be worried?What can I do to help besides the doc? Food?Supl?

Depends/check ups,,,: It depends on how low TSH was and where the other labs are in the normal range. If TSH was very low and the others were getting toward the elevated levels, then it'd be a good idea to talk to your doctor about steps to correct a possible hyperthyroidism issue, of not or if they were all getting toward the low side, then supplements might be needed. Regular check ups and Dr. visits help. ...Read more

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Having nausea, fatigue, dry skin, etc. Had thyroid test TSH 4.290& T4 1.15 & ferritin 5, hemoglobin 9.6, vitamin d 11. Would low dose thyroid med help?

Having nausea, fatigue, dry skin, etc. Had thyroid test TSH 4.290& T4 1.15 & ferritin 5, hemoglobin 9.6, vitamin d 11. Would low dose thyroid med help?

Anemia and vitamin: D deficiency. All laboratory results need to be interpreted in the clinical context and the doctor who ordered the tests is usually in the best position to do that. Having said that, you are deficient in iron and vitamin D and likely deficient in other nutrients as well. It is imperative that you see your doctor for a thorough evaluation. In meantime - Have a diet rich in fresh vegetables, fruits, whole grains, low fat milk and milk products, nuts, beans, legumes, lentils and small amounts of lean meats. Avoid saturated fats. Exercise at least 150 minutes/week and increase the intensity of exercise gradually. Do not use tobacco, alcohol, weed or street drugs in any form. Practice safe sex. ...Read more

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I have thyroid problem with elevated TSH and low t4. What do you suggest?

Hypothyroid: Your situation sounds like an under active thyroid however the cause is unclear mostly permanent requiring lifelong replacement before starting this routine confirm it is not a self limited condition which is less common check with md also helped by checking tpo levels. ...Read more

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My T4 levels were low(3.8) but my TSH levels(1.95) were normal. Is my thyroid test normal?

Likely: All lab results need to be interpreted in the clinical context and the doctor who ordered the test is usually in the best position to do that. The info you provided does not suggest a thyroid disorder. ...Read more

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My TSH is a little low. T4 is a little high. I can't take the thyroid meds. Will a partial thyroidectomy help? (feeling very sick)

Possibly.: If you can't take thyroid meds, surgery or radioactive iodine ablation are useful. In fact radioactive iodine ablation is effective, with 40-70% of patients becoming hypothyroid after its administration. You might want to just observe since your T4 and your TSH are only slightly high and low respectively, and you might still have normal function. It would be best to see your doctor to decide. ...Read more

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I have a 1.6cm single vascular nodule right lobe of thyroid. It is 16x15x7mm, hypoechogenic,curcumscribed, front of neck has pain. T4 low biopsy?

I have a 1.6cm single vascular nodule right lobe of thyroid.  It is 16x15x7mm, hypoechogenic,curcumscribed, front of neck has pain.  T4 low  biopsy?

FNA biopsy: Hi. TSH would be more useful than a T4, but I can surmise it's NOT a hyper functioning nodule from the low T4, and hyper functioning nodules are the only ones at no risk of being cancer. You need a fine needle aspiration (FNA) biopsy with gene testing. Let me guess...that's what your doc told you! She/he is right! Get it done. They're not bad at all ( know it seems creepy!). Odds are in your favor ...Read more

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What does low T4 and low TSH signify on a thyroid test?

What does low T4 and low TSH signify on a thyroid test?

Need more info: All laboratory results need to be interpreted in the clinical context and the doctor who ordered the tests is usually in the best position to do that. Having said that, it would have helped to have the actual values rather than your interpretation of the results. For good health - Have a diet rich in fresh vegetables, fruits, whole grains, milk and milk products, nuts, beans, legumes, lentils and small amounts of lean meats. Avoid saturated fats. Drink enough water daily, so that your urine is mostly colorless. Exercise at least 150 minutes/week and increase the intensity of exercise gradually. Do not use tobacco, alcohol, weed or street drugs in any form. Practice safe sex, if you have sex. ...Read more

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Dear sir, it is not good to take only T3 (liothyronine) for low thyroid? And why you prefer T4 ?

Dear sir, it is not good to take only T3 (liothyronine) for low thyroid? And why you prefer T4 ?

T3 (liothyronine) or T4: T4 is the major thyroid hormone in the blood and a small fraction is also converted to T3 (liothyronine). T4 is preferred. Adding T3 (liothyronine) tablets adds more cost and limited extra value. Sometimes T3 (liothyronine) is necessary but not often. ...Read more

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Normal TSH but low free t4? Whats th3 difference between these 2 test? Do I have a thyroid problem?

Reproducible?: Hi. Is the lab profile with normal TSH and low free T4 reproducible? The labs should be repeated. If the free T4 was just below the normal range, and on repeating it's in the normal range, then your thyroid function is normal. If free T4 is significantly low and TSH is normal, that suggests pituitary disease affecting the pituitary cells that make TSH. Good luck! ...Read more

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My TSH levels are normal, my T4 is almost low? what could this mean? I have 3 hyperechoic nodules on a diffused thyroid. Size .09 to 1.5 CM.

"almost" low: means normal, so stop worrying about your lab values. Your nodules, on the other hand, need someone to evaluate your clinical parameters and ultrasound carefully and decide whether you need to have a thyroid biopsy. ...Read more

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Good evening. I've been suffering from whole body swelling. My TSH is low, and my free T4 is lower on each subsequent test. Is this a thyroid issue?

Good evening. I've been suffering from whole body swelling. My TSH is low, and my free T4 is lower on each subsequent test. Is this a thyroid issue?

NOT REALLY: it sounds more like a PITUITARY condition. The pituitary gland (called the "master gland" is located below the base of the brain and REGULATES thyroid function AND the functions of other glands as well! Hope this helps! Dr Z ...Read more

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Would TSH 5.4 and T4 7.6 be considered mild or severe? What test would my doctor have to do to know what caused my thyroid to be low?

Mild; repeat test: In most assays, the T4 is normal, and TSH slightly elevated. This could be nothing; sometimes a repeat test will come back normal. The question to ask: is your thyroid gland starting to fail? If so, it is early. Family history? Do you have symptoms? Positive anti-tpo antibodies? If you have symptoms and if there is evidence that your thyroid is failing, you should start on levothyroxine. ...Read more

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Can you still be hypo after having high TSH -6.97 months back and now 5.9- neg antibodies? Thyroid US done which was fine. T4 low normal range.

High TSH, low thyro: Your pituitary gland tells you that you are not having enough thyroid by producing more TSH. Thus whenever it is high, it means you need more thyroid. ...Read more

Dr. David Sneid
1,420 doctors shared insights

Thyroxine (Definition)

Thyroxine is a thyroid ...Read more