Guest guest Posted March 20, 2006 Report Share Posted March 20, 2006 farmladync wrote: > What is the " current " acceptable level range for T4. ... That depends on how the test is done. Your lab should provide a reference range for Free T4 or Total T4, if your doctor orders those tests. Usually, you want your levels to be at the high end of the reference range. Under some circumstances, some might want to actually be above the reference range. It depends on your condition, what you are taking, and what your other numbers are doing. The most critical reading is Free T3, but many still order the others as an artifact of when it was easier and cheaper to deduce what Free T3 is doing from other levels. Chuck Quote Link to comment Share on other sites More sharing options...
Guest guest Posted December 2, 2009 Report Share Posted December 2, 2009 Yes this is a strange one and i experience this boost when i take more T4. it happens very quickly as well. i have felt better within 1h of doing an increase. i wonder if the body is wanting the extra hormone and so sucks it in. when it does this it then realises it has too much and so makes more RT3 and so cancels out the positive effect of more T4. just a thought and i have no idea if it is right. > I wonder if someone can explain something to me.All I see is post saying it takes 6 weeks for T4 to have an effect,but my starting d Quote Link to comment Share on other sites More sharing options...
Guest guest Posted December 3, 2009 Report Share Posted December 3, 2009 Hi Sharon Some people can feel the effects of taking levothyroxine within a few days, others often not for months until they get onto the dose that their body requires. Thyroxine has what is known as a ‘half-life’ of 7 days. This is the term used for the time the body takes to reduce the blood level of thyroxine by half, and this would explain why patients would notice no ill-effects if the dose of Thyroxine were inadvertently missed for a few days. It is often the case that the patient does not feel immediate improvement following thyroxine therapy. One might be started on a low dose, which SHOULD be increased at 3-4 weekly intervals but within the NHS, it is only increased about every 2 to 3 months. It sometimes takes several months, perhaps 6-9 months, before all the symptoms of hypothyroidism improve, but may take longer for you to feel ‘normal’ again. If you have other conditions (like your low zinc) going alongside your hypothyroidism, you need to get these treated. Go to our web site www.tpa-uk.org.uk and click on 'Hypothyroidism' in the Menu, and in the drop down Menu, click on 'Associated Conditions' and read about them there. Luv - Sheila I wonder if someone can explain something to me.All I see is post saying it takes 6 weeks for T4 to have an effect,but my starting dose of levo was 50 mcg and within 10 days I felt better and lost 8lb in weight! Then,about a week later,the 8lb went back on and I felt even worse than before I started the naff stuff! So it had a positive effect and then a negative effect,all within 3 weeks,so that blows the 6 week thing out of the water.So why would this happen to me,anyone have any ideas? Best wishes sharon No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.5.426 / Virus Database: 270.14.90/2540 - Release Date: 12/02/09 07:33:00 Quote Link to comment Share on other sites More sharing options...
Guest guest Posted December 4, 2009 Report Share Posted December 4, 2009 Hi Sharon, all I can think is that you began to convert to t3 to start with but the body gave up on converting, but also a starter dose can make you feel better only to decline again when the body realises that is is not enough and is 'asking' for a dose increase. thyroid treatment From: sprog1967@...Date: Wed, 2 Dec 2009 13:40:22 -0800Subject: T4 Hi all, I wonder if someone can explain something to me.All I see is post saying it takes 6 weeks for T4 to have an effect,but my starting dose of levo was 50 mcg and within 10 days I felt better and lost 8lb in weight! Then,about a week later,the 8lb went back on and I felt even worse than before I started the naff stuff! So it had a positive effect and then a negative effect,all within 3 weeks,so that blows the 6 week thing out of the water.So why would this happen to me,anyone have any ideas? Best wishes sharon Have more than one Hotmail account? Link them together to easily access both. Quote Link to comment Share on other sites More sharing options...
Guest guest Posted December 4, 2009 Report Share Posted December 4, 2009 Hi Sharon All I can say is that when I got diagnosed in Feb 07 I was put on 100mcg of Levothyroxine and lost a stone in weight fairly qickly.I thought great I am on the road to recovery!! My heart was racing badly though,and within a few weeks it all went back on again. In January this year I started taking T3, only a quater of a tablet to start with and I lost half a stone in weight. That however went back on again after not very long. Under Dr P I am trying to add back a bit more T4 now, fingers crossed it might help. I am on adrenal support since seeing Dr P so that might make the difference in the weight loss department. Hope this helps Luv Stephie > > Hi all, > > I wonder if someone can explain something to me.All I see is post saying it takes 6 weeks for T4 to have an effect,but my starting dose of levo was 50 mcg and within 10 days I felt better and lost 8lb in weight! Then,about a week later,the 8lb went back on and I felt even worse than before I started the naff stuff! So it had a positive effect and then a negative effect,all within 3 weeks,so that blows the 6 week thing out of the water.So why would this happen to me,anyone have any ideas? > > Best wishes sharon > Quote Link to comment Share on other sites More sharing options...
Guest guest Posted March 29, 2011 Report Share Posted March 29, 2011 I cant agree more about rt3 and have been harping on this for a long time, but people are still playing the number game. I will call in some levoxly 50 mcgs then split it for 6 months. I still have lingering thyroid symptoms that need to be addressed and erfa is not doing it. I may be able to reduce t3 as my t4 converts. Coudl this low t-4 even with proper t3 still be causing issues with constipation? I noticed the higher my t4 less the constipation. > > > > > > > > > > > > > > > > hey group, > > > > > > > > > > > > > > > > I recently started getting dandruff. Is this hypothyroid, low test, > > > > > high > > > > > > > > E2, etc? Btw, I'm also losing my hair like mad. > > > > > > > > > > > > > > > > Thanks, > > > > > > > > > > > > > > > > -- > > > > > > > > *Mike* > > > > > > > > > > > > > > > > > > > > > > > > Quote Link to comment Share on other sites More sharing options...
Guest guest Posted March 30, 2011 Report Share Posted March 30, 2011 One question about Hashimoto. Is it necessary to do thyroid replacement with high antibodies(and all hypothyroid symptoms) but normal FT4, FT3? If yes, then not all people can do replacement with T4 or T4/T3. I talking about myself. I did it with T3 and now thinking to move to T4/T3(erfa). Antanas > > > > > > > I cant agree mo... > ------------------------------------ > > Quote Link to comment Share on other sites More sharing options...
Guest guest Posted March 30, 2011 Report Share Posted March 30, 2011 i had in-range(actually in the very top) FT4/FT3, but what i want to say - is it necessary to do thyroid replacement, if you have high antibodies, low basal temp and all symptoms of hypoT? > > > > > > > > > > > > > > > I cant agree mo... > > > > > Quote Link to comment Share on other sites More sharing options...
Guest guest Posted March 31, 2011 Report Share Posted March 31, 2011 If your FT4/FT3 are high in range, then your body makes enough thyroid. If you're feeling hypo, you need to check other things like iron/ferritin status and cortisol. > > > > > > > > > > > > > > > > > > > I cant agree mo... > > > > > > > > > Quote Link to comment Share on other sites More sharing options...
Guest guest Posted March 31, 2011 Report Share Posted March 31, 2011 My iron is perfect.my cortisol is low, so i take 30hc, but still feel hypo. Also take A, D vitamins and so on. I have feeling that blood is not reliable, especially with hashi. > > > > > > > > > > > > > > > > > > > > > > > I cant agree mo... > > > > > > > > > > > > > Quote Link to comment Share on other sites More sharing options...
Guest guest Posted March 31, 2011 Report Share Posted March 31, 2011 Philip,have you read this or this is your idea? I rechecked my thyroid on hc, before thyroid meds and expected to see tanked ft4,ft3, but nothing have changed. Antanas > > > > > > > > > > > > > > > > > > > > > > > I cant agree mo... > > > > > > > > > > > > > Quote Link to comment Share on other sites More sharing options...
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