Doctor insights on:
T4 T3 Ratio
Cough, wheezing: Asthma usually presents with one or more of the following: cough (especially at night), wheezing, shortness of breath, or difficulty with running and playing due to these symptoms. If your child has these symptoms or has frequent waking at night due to respiratory symptoms, make sure and discuss this with his or her doctor. ...Read moreSee 7 more doctor answers
All of the above: Methimazole is a thionimide that inhibits the formation of thyroid hormone it is important to measure tsh, ft4 ; ft3 (liothyronine) levels to have a better idea of the physiology causing the hyperthyroidism, ie is it subclinical hyperthyroidism, t3 (liothyronine) preferential secretion, or severe thyrotoxicosis. The TSH can be very suppressed with only minimally elevated t4/t3 (liothyronine) which would not need as high a dose. ...Read moreSee 1 more doctor answer
Level of TBG: 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, if you have high level of thyroglobulin binding protein (TBG) that will make your total T4 high when free T4 may be low. However, if your TSH is in the normal range, you are not likely to be thyroid deficient. ...Read more
I had a tsh of .06. Tested again 2 weeks later showed .05 with normal T4/T3. Should I see an endocrinologist? Also is this very low for a TSH?
My T4 & T3 (liothyronine) levels are in the normal range but my TSH is high. Why so? And having t3&t4 in normal level can I avoid the meditation ?
If: You are on thyroid medication it means the dose should be slightly increased. If not on medication it could be premonition of future needed medication. Follow through carefully. ...Read more
Is 2.11 TSH considered to be hypo? T4, T3 (liothyronine) are normal.They put me on 75 mcg levothyorixin .Is it safe to take that?Have been on 50mcg since 6 months.
TSH normal: Tsh was normal, but they may think it's more appropriate for you TSH to be a little lower. 75 micro grams may be fine - it's certainly not dangerous, and you can recheck the levels in 6 weeks to see. Make sure you're taking brand name t4, as the generics are unreliable, and you don't need further problems when trying to conceive. ...Read more
How/Does Thyroid hormone production normally fluctuate along with female hormone cycle? Are you more likely to have hi/lower t4/t3 at certain times?
There is: no "DIRECT" connection between thyroid gland output and t-4/t3 ratios and "female hormones" except that the BINDING of the hormone itself is altered by female hormone levels...This does not generally effect the end point of Thyroid Hormone effects (on growth, muscles and other tissues) Hope this helps! Perhaps a more specific question can generate a better answer! Dr Z ...Read more
My TSH is 7.9 and t4&t3 were in the normal range. I was prescribed syndroid 25mg. I am 105lbs 24 yrs old. Should I take it? I have been feeling dizzy
See your dr: You are taking a very small dose of thyroid hormone for a very mild case of hypothyroidism. Dizziness is an uncommon symptom of your thyroid condition and an uncommon side effect of your treatment. You should make an appointment with your doctor to talk about your concerns. ...Read more
After 2months of having my thyroid removed TSH level 40, taking t4175mg, getting fat.Shall i try to combine t4&t3, in which dosages?
Need higher dose: The high TSH shows that your thyroid level is still low. 175 mcg of T4 is a relatively high dose. Your are probably not absorbing the medication correctly. You must be sure to take it on an empty stomach, wait at least 40 min before eating, do not take it with any supplements or other meds. You should be on a brand-name thyroid, such as synthroid (thyroxine) or tirosint, not generic. ...Read more
If T4&T3 is slightly above normal levels in pregnancy, no history before, the patient has attacks of palpitations. .does she needs treatment? Thanks.
Thyroid & Pregnancy: Thryoid tests T4 & T3 (liothyronine) rise in pregnancy(1.5 times normal) normally, while free T4 & T3 (liothyronine) are normal. You need to check your TSH, free T4. If free T4 is high & TSH very low--think overactive thyroid gland or hyperthyroidism. If normal look for other causes of palpitations, such too much caffeine, anxiety, other medications ...Read more
normal Total T4, T3 (liothyronine) Uptake, FTI, Ultrasensitive TSH
LOW Total T3 (liothyronine) (63.55 ng/dl)
Synthroid dose needs to increase?
It's OK: Hi. Your TSH is "normal", but I'd shoot for a value on therapy generally around the 1.0-1.5 range. The total T4, T3 (liothyronine) resin uptake, and FTI are prehistoric tests no one in the thyroid field has used for years. Your body regulates conversion of T4 to T3 (liothyronine), so your T3 (liothyronine) should be just what the body ordered. Your T3 (liothyronine) is close to the normal range; if you repeat it it's likely to be within normal range. ...Read more
Thyroid function: These are thyroid function tests and help to determine how the thyroid gland is working. ...Read more
Forgot will Lexapro and Xanax raise tsh? T4, T3, FT4/3 are all normal. Tested 2x's for hashimoto, both negative.
lexapro belongs to a class of medicine also known as selective serotonin reuptake inhibitor (SSRI), and they as a class may diminish the effect of thyroid medicine if you are taking it. if you are not, it should not effect you.
given your hashimoto, you probably still needs your thyroids tested on a routine basis to monitor it's level, at least once a year. take care. ...Read more
I had thyroid nodules a few years ago that turned out cold but benign.Now years later my Tsh is .05 but normal t4-t3. can cold nodules turn hot??
Not same connotation: Clod nodule means , did not take ( uptake ) radio active iodine do not have functioning thyroid tissue ,tend to have higher incidence of cancers as much as 15 % , hot nodule has functioning thyroid tissue less incidence of cancer. Now analogy is simple your did not have cancer tissue , just need close follow up & a good news ...Read more
What could possibly prevent me from losing weight, im 34 f, on Synthroid (thyroxine) 137mcg, cytome 12.5mcg, metform 1000, phenter, free t4/t3 upper range, TSH low?
Eating too: Much and not exercising enough. If you're on cytomel, (liothyronine) you should consider stopping it as it can be dangerous and can't be checked by the routine thyroid tests. That's probably why your TSH is too low. The T3 test doesn't accurately measure Cytomel (liothyronine) dose. ...Read more
Do any ssri's increase or decrease the following: thyroid stimulating hormone, free t3, (liothyronine) free t4, t3, (liothyronine) and/or t4?
My blood results came back normal but I still don't feel right? Tests for thyroid, antibodies, low test (TSH, T4, T3) and testicular. Physically
Work with your team: When people just don't feel right in a general way, blood tests such as you had rarely give the answer. You need to find a provider (either MD or NP) who will listen to your complaints, get more history, and not just order tests. Perhaps you are not getting enough sleep or have some form of depression or mood disorder. Lots to consider and you need to see someone for more than 10-15 minutes ...Read more