Doctor insights on:
What Is Tsh Reflex To Free T4
Few possibilities: These labs seem at odds, with TSH suggesting overactive thyroid and ft4 underactive thyroid. Free T4 tests can be inaccurate in some people who have interfering substances present. Another possibility is a tumor in the pituitary secreting too much TSH resulting in thyroid overactivity, and high thyroid hormone levels. This is quite rare, however. Your doctor can help sort this out. ...Read more
My TSH is 9 & my TSH Reflex to Free T4 is 1.29 & I still don't feel well! Should my Levothyroxine 75 mcg be increased?
I agree to a point!: Tsh slightly elevated. Your body thinks your thyroid is low. The most common cause for hypothyroidism is hashimoto's thyroiditis, which can be indentified by the presence of anti-thyroglobulin antibodies and anti-TPO antibodies. Have these tests. If positive, I would place you on thyroid immediately. I would also have my free-t3 checked as well. Some do not convert T4 to t3! ...Read more
Hypothyroid: Discuss with your doctor to get treatment. ...Read more
What to do if I had a blood test done and my TSH reflex to free T4 is 4.53. 50-4.30 miu/l is that bad?
Further workup: A TSH above normal indicates that your brain is telling your thyroid it needs better thyroid function. Have your free T4, free T3 (liothyronine), (liothyronine) Reverse T3 (liothyronine), (liothyronine) thyroglobulin and TPO antibodies, Ferritin, and SHBG levels checked to ensure the thyroid and tissue utilization/conversion to active thyroid is occurring. Furthermore, these levels should be optimized...TSH 3.6, low Rev T3 (liothyronine) ...Read more
I had a TSH REFLEX TO FREE T4 blood test done, my result is 3.70 (0.40-4.50 mIU/L), is this normal? Thank you.
Thyroid function: That appears to be within the normal range, based on the laboratory standard you provided. ...Read more
My TSH is 9 & my TSH Reflex to Free T4 is 1.29, I still feel Fatigued & I don't feel well should I have my Dosage of Levothyroxine increase to 100 MCG?
TSH values: The TSH is your pituitary gland at the bottom of your brain talking to your thyroid gland saying "I don't see enough thyroid hormone around here." It stands for Thyroid Stimulating Hormone. You should speak to a good endocrinologist about your situation pronto and yes you should be on a higher dose of thyroid replacement hormone. ...Read more
Blood results came back with a 4.27 (h). Tsh, reflex to free T4 tsh, highly sensitive. Leukocyte esterase - moderate hemoglobin - trace / WBC 6 (h)?
Hi, I am a 37 year old female. History of excessive thinning hair. My TSH reflex to free T4=. 9. My ferritin= 17. My calc % Iron Sat= 20. Thoughts?
Normal: Hair thinning is a very common complaint. Usually one can find no particular cause, though many medical conditions, medications, stress, age, genetics, nutrition, all influence hair growth. Your thyroid, and iron levels appear normal and are therefore unlikely to be a cause for hair loss. ...Read more
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, free T4 value is normal. The low TSH suggests need for a discussion with your doctor about reducing the dose of synthroid.
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Get HPV vaccine, if you are under 27 years of age. ...Read more
Tsh w reflex to free t4 component results value std range 2.55 0.45-4.5 is my test results good or bad at 2.55?
Normal: The value for TSH in the scenario you decribed is normal. However, like all lab tests, interpretation must be done with attention to the bigger picture. ...Read more
My TSH with reflex to free T4 and T3 (liothyronine) came out to a range of 1.0. Is that normal? Been feeling horrific since I gave birth 5 months ago.
That's a normal TSH: Hi. That's a normal TSH, but testing TSH alone only tests dysfunction of the thyroid gland itself. You need to get a TSH AND a free T4 (i.e., NOT "reflex") to see pituitary hypothyroidism (which, btw, can occur in rare cases associated with a particularly bloody delivery). Of course many problems can make you feel horrific. Can you make milk? I don't know what is wrong, but you need further eval. ...Read more
My t4 free is 0.70 and my tsh reflex free t4 is 29.2. What does this mean and what do I need to do?
Hypothyroidism: This is diagnostic of hypothyroidism and should be treated with thyroid hormone replacement which hopefully was done by the doctor who got these labs. While without a little more history is there is the remote chance of thyroiditis, it is unlikely with a TSH in this range. While EASILY TREATABLE, hypothyroidism can be a serious and even eventually a life threatening disease. ...Read more
My TSH w/reflex to FT4 test came back at 6.73, but my free T4 came back at 1.24. I have previous has similar results to these tests.
Mild hypothyroidism: The elevated TSH means that your pituitary gland is not happy with your thyroid level, and would like to see it higher despite the "normal" free T4 level. If you do not have any symptoms of hypothyroidism, we call this "subclinical hypothyroidism". Treatment may not be needed unless you develop symptoms or the TSH goes progressively higher. You should not start treatment based on one abnormal test ...Read more
TSH W REFLEX FREE T4 TSH, 3RD GENERATION (0.40-4.00) uIU/ML My results are 1.10 I had this test taken. Can you explain what the results mean?
Normal, but...: THIS IS A NORMAL THYROID SCREENING TESTS. There are rare diseases thyroid that can happen with an normal normal TSH, but you would have symptoms of thyroid disease or other evidence of central hypothyroidism or thyroiditis in a "euthyroid phase, " which would be rare and require much more history. If there is ongoing concern see an endocrinologist. IF YOU GENERALLY FEEL WELL GREAT, IT IS NORMAL! ...Read more
Blood test shows TSH w/ reflex to FT4 is 13.62 (high) & Free T4 is 1.1 (normal). How would you describe what these results mean?
Thyroid tests: 26F US had TSH 13.6 and Ft4 1.1. Asks: How could you describe what these results mean? ANS: Need 2 know lot more about U which ur Drs already knows so better to ask them. Such as 1. U on BCP? 2. Why was test done? 3. Hx of thyroid problems n past? 4. Taking thyroid meds? 5. Pregnant? As TSH is high, u did not give normal lab range for FT4 but it seems lowest range of normal. Hypothyroid? ...Read more
TSH reflex free T4 test = 2.51 (normal range 0.35-4.50). I've read hyperthyroidism still possible if TSH normal. Do I need another test?
That said, your doctor should have ordered TSH and T3 (liothyronine) as well as T4. Please go back to him/her or if you are not satisfied have a friend or family refer you to a better doctor. ...Read more
Tsh with reflex free T4 1.09, free T4 1.00 t3 (liothyronine) total 91. Feel horrible very weak, hair falling, weight gain endo and GP said I'm fine no further tests?
Every lab. .: Different ranges of normal- so both need to be in normal range of that lab. ...Read more
Every medical laboratory has different values for the labs they are doing.
Please have your doctor tell you what is the normal range for Free T4 and TSH. If you are in range that's great. If not, your doctor has to develop a treatment program for you. Not difficult for the doctor or you. ...Read more
Repeat the labs: Hi. In all likelihood, it's a lab error or some trivial explanation. Repeat the labs to see if the lab profile is reproducible. Among the very rare possibilities that it's real would be thyroid hormone resistance, a condition wherein a mutation in a subunit of the thyroid hormone receptor is present (these people are euthyroid), or a pituitary adenoma that makes thyroid hormone (these are hyperthy ...Read more
What do I do if my TSH levels are normal, but my free T4 is low, and I am having hypothyroid symptoms?
Central hypothyroid: Free T4 assays can sometimes be unreliable and you and your physician will be better off if you have your total T4 measured instead along with T3 (liothyronine) update to calculate what we call free thyroid index. If you have symptoms of hypothyroidism and your T4 remain level despite normal TSH then you may have a type of hypothyroidism called central hypothyroidism (your pituitary hormones should be checked). ...Read more
Blood test says TSH rfx on abnormal to free T4 -349829 and TSH 0.035, T4 free (direct) 1.26 what does this mean?
Hard to say...: It is difficult to say without knowing the units of measurement. For example a free T4 of 1.26 ng/l is normal but 1.26 pmol/l is quite low. A TSH value of 0.035 is defintely low and may indicate an overactive thyroid (hyperthyroidism). Consultation with your doctor or an endocrinologist is recommended. ...Read more
Six weeks ago my TSH levels 13.8 so I started to take eltroxin 100. Today my TSH levels 0.6 and free T4 is 19.08. Should I stop take eltroxin?
Definitely not: But talk w/your doctor about possible adjustment in the dose. ...Read more
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