About Thyroxine T3 Levels

Thyroxine T3 Levels Posts

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what is normal level of T3 TRIODOTHYRONINE,T4 thyroxine,and TSH.? when thyroid gland is not working properly, and horomone production is less, or person is suffering from hypothyroidom

rosieC replied: "TSH levels are tested in the blood of patients suspected of suffering from excess (hyperthyroidism), or deficiency (hypothyroidism) of thyroid hormone. Generally, a normal range for TSH for adults is between 0.4 and 5.0 uIU/mL (equivalent to mIU/L), but values vary slightly among labs. The optimal goal TSH level for patients on treatment ranges between 0.3 to 3.0 mIU/L.[4]. The interpretation depends also on what the blood levels of thyroid hormones (T3 and T4) are. The National Health Service in the UK considers a "normal" range to be more like 0.1 to 5.0 uIU/mL Thyroid hormone tests are blood tests that check how well the thyroid gland is working. Normal Normal values may vary from lab to lab. Results are usually available within a few days. Labs generally measure free T4 (FT4) levels, but also may measure total thyroxine (T4) and T3 uptake (T3U). Results of these thyroid hormone tests may be compared to your thyroid-stimulating hormone (TSH) results. Thyroid hormone tests Total thyroxine (T4): 9.8–22.6 micrograms per deciliter (mcg/dL) in newborns (1 to 14 days of age) 5.6–16.6 mcg/dL in babies and older children 5–14 mcg/dL in adults Free thyroxine (FT4): 0.8–2.4 nanograms per deciliter (ng/dL) Total triiodothyronine (T3): 32–250 ng/dL in newborns (1 to 14 days of age) 83–280 ng/dL in babies and older children 80–230 ng/dL in adults Free triiodothyronine (FT3): 0.2–0.6 ng/dL Free Thyroxine Index (FTI): 7.5–17.5 in newborns (1 to 14 days of age) 5.0–12.8 in babies and older children 4.2–13.0 in adults Many conditions can change thyroid hormone levels. Your doctor will talk with you about any abnormal results that may be related to your symptoms and medical history. High values High thyroid hormone levels (hyperthyroidism) may be caused by: Diseases of the thyroid gland, such as Graves' disease, thyroiditis, or a goiter that contains one or more abnormal growths (nodules). Taking too much thyroid medicine. Low values Low thyroid hormone levels (hypothyroidism) may be caused by: Thyroid disease such as thyroiditis. Pituitary gland disease. Destruction of the thyroid gland by surgery or radiation. What Affects the Test Reasons you may not be able to have the test or why the results may not be helpful include: Taking certain medicines, such as: Corticosteroids, estrogen, progesterone, or birth control pills. Blood-thinning medicines such as aspirin, heparin, or warfarin (Coumadin). Antiseizure medicines such as Dilantin or Tegretol. Heart medicines such as amiodarone or propranolol. Lithium. Having recently had an X-ray test that uses contrast material. Being pregnant."

Still have some symptoms of hypothyroidism despite normal TSH , T3 and T 4 levels? I am on replacement thyroxine since 2002 and have normal TSH,. T3 and T 4 yet still have some symptoms of hypothyroidism mainly, 1) Heavy prolonged periods which are sometimes irregular.(late or early) 2) Memory loss 3) Unable to lose weight 4) Tiredness 5) Low iron levels 6) Sore joints 7) Foggy mind 8) Depression Why is this so? Ive even had my meds increased(still withiin good rang in blood levels)

Steve B replied: "have the free T3 and T4 and reverse T3 done....more specific tests..........also,have ANA test to rule out lupus...good luck"

TweetyBird replied: "This is something you need to take up with your endocrinologist. I urge you to do so."

pennypincher replied: "Check out the website. It is about the synthetic thyroid hormones verses the natural one."

I have a thyroid problem (details below). Pls suggest medication? Latest reports revela that I have Triiodthyroinin (T3) level of 32 ug/ml, Thyroxine (T4) level of 1.3 ug/dl, and Thyroid Stimulating Hormones (TSH) 64.6 uIU/ml. Problems: over weight (95 kg), breathing inconvenienec and high blood pressure (in the range 150 /120 to 120/90) Medicines using: THYRONRM -50 and RAMISTAR-H5 I had anemia in 1996 and 2004 and got cured with medication. I have normal level of HB count at present without medicines. But the Dcotor now opines that thyroid could have been the root cause for the anemia too. No one detected thyroid previously. I would be grateful if anyone suugests proper medication for my problem. Thanks in advance. Ravi Male, age 44 years

mrodrx replied: "It sounds like you have hypothyroidism (your body doesn't produce enough T4). Thyronorm is a replacement for T4. That is probably why your T3 is low and TSH is high but T4 is mostly normal. It sounds to me, based on this information, like you need to increase your Thyronorm dose. Discuss it with your doctor and see if he agrees before you make any medication changes."

pete samui replied: "Ravi, i am not a doctor but i have had a underactive thyroid for 19 years, thyroxine is the medicine i take 2 tabs and the symptoms of my underactive thyroid are tiredness, lethargic , overweight, cold or hot etc."

thyroxine help? my mom is a 44 years old. she is suffering from hypothyroidism since twelve years. the recent tests have shown that her level of T3 is 1.92mg/ml and T4 is 12.34 ug/dl. and TSH is 0.094 mlu/L. she is taking thyroxine sodium tablets of 150 mg od. is the dosage correct?

eddie9551 replied: "All depends on your mom. How big she is, and how she responds to the medication. What I had to do was take a stater dose, get retested in 3 months (it takes time for it to work) and adjust the doseage. Can take a year or 18 months to get it right"

crystalrain replied: "Talk to her doctor..she may her dose reduced"

Raul G replied: "you have to include her weight in the equation and that dosi is once a day or bid"

pdevans1963@rogers.com replied: "Do you have any real reason to doubt the prescription she got frome her MD? You don't like the doctor ? Maybe shes not responding well? Some reason why you would doubt the word of a qualified professional when you yourself don't know. ? if you have such a reason then i'm sure your doctor won't mind you gettig a 2nd opinion. but HERE????. Who do you trust to evaluate your mother online in this forum?"

The control of calcium levels in the blood is due to which pair of hormones? A) triiodothyronine and thyroxine B) tryptophan and tyrosine C) parathormone and thyrocalcitonin D) GH and PTH E) T3 and T4

jewellefine replied: "I believe that the correct answer is c........ Calcitonine (or thyrocalcitonine) inhibits deportation of calcium from the bones and parathroid hormone or PTH stimulates the uptake of calcium into the bones. I am a nurse and I hope that I am remembering my anatomy and physiology!!! :) Are you studying for a test?? Good luck!!!!!"

How do I treat my underactive thyroid? I have an underactive thyroid. My initail levels were TSH 180 and T3 was 7. I am now on 150mg of thyroxine but my TSH is still high at 19. Does anyone have any ideas of how I could help this myself in the meantime as i am always tired, feeling run down. Also have high blood pressure and am on medication for that.

MinibabeUK73 replied: "Maybe you should go back to your GP - my sister has been taking Thyroxine for about 25 years now & is checked regularly. If your TSH is still high, you should get your medication reviewed."

Analytical Thinker replied: "use ionized salt with your daily intake of food! And watch out for drug interactions with the hypertension medications and the thyroid medications!"

bumbleboi replied: "Don't even think about treating it yourself, it is far too serious a condition to mess with. Get back to the Dr and get your Thyroxine dose adjusted and your levels retested until they are correct, it takes time to find the optimum dose as everyone is different and it changes so test, test retest and keep testing!"

susan e replied: "mine was overactive for years then underactive,they found a hot spot in my thyroid,cancer.so,i had about 85% of thyroid removed over 8 yrs.ago and take a low dose and haven't had any problems since. my meds.were constantly being adjusted according to levels,once i was in a manic state until they found out i was in thyroid storm so be tested at least every 6 months.nothing much to do yourself.all the women in my family have thyroid problems."

huggz replied: "This is not something you can treat yourself! Go back to your doctor and tell him how you feel. If he is not giving you further treatment he is probably assuming that you feel OK....you need to tell him you're not OK!"

Dr Frank replied: "There is nothing YOU can do to alter your thyroid level, if it is still low your GP will need to increase your levothyroxine dose."

mary s replied: "You can't self treat. I have to have another fine needle aspiration this month because my thyroid levels are always changing and nodes develope which have to be monitored by a dr."

no_frills replied: "You will need to be patient. Go for frequent blood tests, every 4-6 weeks until your TSH is in a normal range. Your doctor should raise your dose after a high TSH test. If your TSH is normal and you still do not feel well, you may wish to try cytomel (t3), along with thyroxine (t4). Some people have trouble converting T4 into T3. Take your medication, and do not eat food near the time you take it. It interferes with the absorption of it. I had my thyroid removed, and until my medication was correct it was very tough. Even after I thought my medication was correct, it needed to be modified. I now take 200 mcg."

thyroid levels??? i need some help? well i want to know if some are too low. or too high. Ive been on synthroid (lowest dose .0025) for a month and a half. TSH - 3.637 T4 Free direct - 1.23 ng/dl Thyroxine (T4) - 7.7 ug/dl T3 Uptake - 0.84 are my levels ok? will they keep getting better with synthroid? i before synthroid my tsh was 5.6 and it dropped in one month, as you can see.

sel replied: "These levels look fine. Without getting into the complicated details why, for practical consideration the only number of interest to you (or to your doctor) here is the TSH. The correct dose of synthroid is the lowest dose that will make the patients TSH normal - and 3.6 is solidly normal (0.5 - 5.0 is the common range for normal.) In fact, many folks would argue that TSH of 5.6 is so close to normal that if a person were experiencing no symptoms (google hypothyroidism for a list of possible symptoms) they would not even need to take synthroid at all. FYI the other thyroid tests are of use/interest only in cases where the TSH is too low, much too high, or, if high, cannot be made normal by a typical dose of synthroid."

flika replied: "Looks good and the Synthroid is doing what it is supposed to do... TSH normal range: 0.3-3.0 (yours is much better.) This range is used by many physicians. (Some still use a normal range of 0.5 to 5.0) T4 Free normal range: 0.7-2.0 T4 Total normal range: 4.5-12.5 T3 Free normal range: 230-420 T3 Total normal range: 60-181"

Mia replied: "I started the same dosage as you're on about six weeks ago. I will go and recheck my levels again in two days. My starting TSH was 3.75, my T4 was 1.0, and my T3 Total was 91. My MD said she would like to get my TSH under 2.0 (I personally want it even lower, like a 1.0, which normal, healthy people have), and she wants to see my T3 increase up over 100. She said that my next lab results will reveal whether or not the Synthroid(T4) is converting into T3. If it doesn't then she will start me on Cytomel (T3). If you do some research, you will find that many people can't convert T4 to T3 and need a supplement. On my next visit, I plan on asking about adding Selenium because it is known to help with conversion. I'm finding tons of good info/advice about thyroid issues at this site: "

What is the normal level of hormons T4, T3 & TSH in a healthy person? The thyroid gland, located in the lower front of the neck, produces hormones - thyroxine (T4) and tri-iodothyronine (T3) - that are extremely important for the regulation of the body's metabolism. My question is related with hypothyroidism.

JENA I replied: "T4 - 1.7 to 4.7 ug/L T3 - 1.5 to 3.5 ug/L TSH - up to 55 ug/L"

BP-LO replied: "T4= 5.7 - 11.7 ug/dl T3= 100-200 ng/dl TSH = 0.5 - 4.6 uIU/ml"

Misty replied: "Source: Clinical Chemistry Principles, Procedures, Correlations by Michael L. Bishop, Edward P. Fody and Larry E. Schoeff Normal ranges for: T4: 4.5-13 ug/dL or 58-167 nmol/L T3: Not included. Sorry. TSH 0.5-5.0 uU/mL: Normal ranges vary slightly from lab to lab, but are very close to these one. I can get the normal range for T3 Tuesday morning. If you are willing to wait. (next time I work)"

kate f replied: "Normal values of the thyroid hormone level vary with specific age groups. The normal value for TSH is: Adult, 2-10 microunits/milliliter or Newborn 3-18 microunits/milliliter. The other tests are broken down according to age. Also may vary a little with each laboratory."

IHateElizabethVargas replied: "TSH normal range is 0.3-5.0 (The higher the number, the more likely you are to have hypothyroid. The average for a healthy thyroid is 2. You can have a 3 and still have hypothyroid, despite being within normal range) I'm not certain about the T3 and T4 ranges."

thyroid or not, what else could it possibly be? my thyroid levels are free thyroxine 32(normal level 10-21) T3 6.2, tsh ot detected, how can i e so tired if i am overactive. please help as i am totaly lost with this

Evofirst replied: "I had Graves disease - hyperthyrodism and my thyroid level was overactive. I was extremely tired too. The doctor explained in layman term, that due to my overactive tyroid, my heart beat was very fast even though I was not moving, my heart was beating as if I was running a 100 miles an hour as such I felt tired and lethargic all the time. I would suggest you go and visit a specialist and find out what is exactly wrong with you. Aside from the medicine I received from my doctor, I also took alternative medicine called Transfer Factor. Its been five years on I have fully recovered from the illness and I did not opt for the operation either. For more information about Thyroid, go to: "

The diagnostic test of choice is? 8: A 30-year-old woman is found to have a low serum thyroxine level after being evaluated for fatigue. Five years ago she was treated for Graves disease with radioactive iodine. The diagnostic test of choice is a. Serum TSH b. Serum T3 c. SerumT4 d. TRH stimulation test e. Radioactive iodine uptake

Little Fairy replied: "SERUM TSH"

feliciter audax replied: "The patient likely has hypothyroidism post-radioactive iodine, which a high TSH (A) would confirm. T3 and T4 would already tell you that she has low thyroid hormone, but not why. TRH stimulation test only useful if TSH is low ie pituitary cause of hypothyroidism. Radioactive iodine uptake would be low - but that would also be expected and does not tell you the thyroid *hormone* status"

Jerry P replied: "The diagnosis is already essentially made. The patient has a low thyroxine status-post radio-ablation for Graves disease and is hypothyroid. The TSH will help distinguish whether the low thyroid hormone is caused by primary pituitary or by a primary thyroid disease. With this patient's history it is almost certain that the thyroid ablation is responsible. One possible factor that is not mentioned in the given info, that might figure in real life, is whether the patient is already taking supplementary thyroid hormone, in which case the TSH might be suppressed. In this problem, the patient's fatigue and low thyroid might be due to an inadquate dose of replacement hormone. a. serum TSH is the best answer"

Apple replied: "serum TSH.."

Rohan replied: "If this woman was my patient,I would ask for more details to answers this question.With those details,she will probably not need to undergo this diagnostic test. But with only these details,TRH stimulation test is advised. If TRH stimulates,it means hypothalamic patholgy If it fails to stimulate,Pituitary Pathology likely"

TomB replied: "Serum TSH"

beautiful replied: "a"

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