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10 weeks pregnant and low TSH level

I am 10 weeks pregnant and my  TSH levels just came back low as 0.12. Before pregnancy I had symptoms of hyperthyroidism but my Dr. said it was anxiety. Symptoms were increased heart rate, shortness of breath, irritability, fatigue, muscle weakness, since pregnanacy they have gotten intollerable that is why I insisted on a blood test. My OB say's it's nothing to worry about, my general practicioner did more labs but I am awaiting results. Is low TSH normal in pregnanacy? Do youthink I had this going on before pregnanacy? Is this dangerous during pregnanacy? What other tests shold I ahve done? Shold I insist on being refered to an endocrinologist?  And help or support would be greatly appreciated.
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Avatar universal
What was the reference range shown on the lab report for the TSH test?  Has your doctor seen the report and if so, what was recommended?  What symptoms, if any, do you have?  Were any further thyroid related tests done besides TSH?
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Avatar universal
Hello I am 10 weeks and my THE levels are at 5.06 p.m:( worried sick that something night be wrong with my baby
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Avatar universal
I really can't thank you enough for all of you information and support...maybe I will be able to sleep tonight and not worry since it'sback to work tomorrow.
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231441 tn?1333892766
Hi Hon,

don't freak out.  Your levels are not anything to be worried about at this stage.

The range for the FT4 during pregnancy and non-pregnancy is different.  Bet the lab didn't state that.  The range for FT4 during pregnancy has to be increased by 50%.  So if the normal range is up to 12.1, the range during pregnancy is up to about 18.

Severe hyperthyroid is a risk to pregnancy.  However hypothyroid is a bigger risk as it causes severe mental retardation, if untreated.  The risk of preeclampsia, premature labor etc is also much higher risk with hypothyroid.

Everything I have read states that mild hyperthyroid (and your case is only high normal / or mild) is not a risk to the baby.  There is a risk that if you treated mild hyperthyroid then you can go hypo, which is much greater risk to the baby.

4 weeks to get in is fine.  

I am hypo.  When i was pregnant my Endo wanted my FT4 right at the top of the range - just about where yours is now.  I had a successful pregnancy and my daughter is now 16 months old and bright as a button.

You need monitoring, but I don't think urgent action is required.  Take a breath.  Relax.  You are on the right track with seeing the endo, etc.  Enjoy your pregnancy.






Helpful - 0
Avatar universal
OK so my regular Dr. just called me with the results and said that my TSH had dropped a little to .08 which he said wasn't significant, and my t4 is 12.1, and highest t4 should be is 12 so I am only .1 out of range. But he did say that the TSH does not effect the baby but f the t4 is elevated is can effect the baby since it is a growth hormone. I have also rad that is can casue premature labor, pre eclampsia and a lot of other bad things. So he is referring me to an endocrinologist but he said I probably won't be able to get in for about 4 weeks. OMG, K now I am kinda freaked out.
Helpful - 0
231441 tn?1333892766
Hi,

yes. Good approach.  Stay calm and make sure you get monitored closely.

If your FT3 and FT4 are in range they won't give you meds to bring the TSH up.

Do keep monitoring.  you and baby will be fine.
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Avatar universal
Well, I am glad your son is ok. my levels are at 0.12 so not as low as yours. But everythign I have gathered from everyones responces and everything I have read is that I at the very least need to be closely monitored by a specialist. So my plan is to try to stay calm and on Monday insist that I see an endocrinologist. I have already switched Dr's....so in the realm of Dr's stuff I can't really find someone better.
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Avatar universal
The only things I can remember symptom wise is being hot all the time and sweating alot but this went back before I was pregnant.  Insomnia and I was always really skinny. And severe headaches.  I don't remember a fast heart rate or anything along that line but it has been along time.
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Avatar universal
Yes he is ok but he also slipped through the cracks he should have had surgery when he was a baby and I was never informed he had this problem until he was 2 then I was told it was cosmetic don't worry about it.  This was misinformation he could have had brain damage from this we are very lucky but now at 7 years old we are looking at having to have the  surgery we meet back with the surgeons again next week.  

I have not talked to the OB but I did see two different ob's and was tested at both I switched at 5 months and both results showed 0.01 no other testing was done and nothing was said about it.  The first ob office I called to get the results said when I asked what should have been done she replied that I should have been retested and monitored but that I was not.  I then went for 7 years on the other side after the birth of my first to hypo before I was able to get any treatment because my TSH never went higher then 4.57.
I requested all my medical records to try and prove my thyroid problem and track down when it started because I was not easily able to get treatment.
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Avatar universal
I believe that they did test my FT4 it is 1.43 with a range of 0.93-1.70 I guess it's pretty much in the middle. I believe that FT3 is in the other test that the Dr. ran but I haven't received the results yet. So not sure at this point. Do you know why they don't treat you if only your TSH is out of range? This seems so bizare to me since everythign I can find say's that hyperthyroidism can cause some major problems inpregnanacy and also since I am experiencing all these symtpoms.

To foreverlostmom:
I am really sorry to hear about your son, is he ok now? What made you request your medical records? Did the Dr. say why he left you untreated? What were your blood results that stated you were hyper thyroid? Just TSH or T3 and T4 also? Did you ahve any symptoms while pregnanat?
Helpful - 0
Avatar universal
I was hyperthyroid when I was pregnant unknown to me until recently when I requested my medical records.  I was never told and never recieved any treatment.  My son was born with craniosynostosis which is a risk of hyperthyroid during pregnancy.  This condition requires major reconstruction of the child's skull in order to allow their brain to grow.  Had I been treated my son possibly could have avoided this.  And aside from that he had the risk of being born with a thyroid problem which he was never properly monitored for either.  If I were you I would run and find a doctor who can control your thyroid while you are pregnant because the risks are to great to not.  I wish you luck!
Helpful - 0
231441 tn?1333892766
Hi,

Did they test FT3, FT4 and antibodies?  If they didn't, then these tests need to be done.  If they did, then please post the results.

If your FT3 and FT4 are in range (even at the top, but still within the range), they won't treat you (give you antithyroid meds) just on the basis of the TSH.

HOwever, you do need to be monitored by an experienced doctor during your pregnancy.
Helpful - 0
Avatar universal
I actually just switched OB's to on ein a neighboring city because the ones in my area don't have good reputations. I am at a loss I think my plan f action is to insist on seeing an endocrinologist and also call one other OB who has a pretty good reputation and see if I can get in to see him for a second opinion. I just hate this becasue I feel really sick and my heart keeps racing and it takes time to get in to see all the different doctors. And I just hope that everything is OK int he mean time. Thank you for everything
Helpful - 0
Avatar universal
I believe fortnight means 2 weeks.
Helpful - 0
875426 tn?1325528416
Well you might start hunting for a recommendation for an OB/GYN who is more knowledgeable and also concerned about woman's and baby's health than yours seems to be, if all they did is tell you it's nothing to worry about and didn't refer you to a specialist to get help about it.  I see you're in California- lots to of OB docs to choose from in CA.  You might ask your friends who are young mothers who they used and if they seemed knowledgeable and willing to refer and order tests and not just sluff them off.  If they are part of an HMO, you might call member services and put in a complaint about them and ask them to help you find a doctor trained at a better school and who has more experience than yours.  You might go and poll patients sitting in the waiting room about their docs (picking those who are further along in their pregnancy who have might have more experience with their docs & can tell you what they think of them).
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Avatar universal
What does every fortnight mean? Does any one know why my OB would not be concerned about my low TSH? How do I get these Dr's to listen to me?
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Avatar universal
You will need to be on anti-thyroid meds throughout your pregnancy to avoid miscarraige and/or early premature labour.
You will also need to be monitored every fortnight until these levels are stable.
Dont ignore the hyperthyroidism....it wont go away on its own while pregnant.
Also ask your Endo to do a TSI antibody test for Graves Disease to rule that out.
Good luck with the pregnancy and hopefully all will be well if monitored all the way through x

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875426 tn?1325528416
You're welcome!
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Avatar universal
Thank you. they did do a full work up and said everythign else looks fine. I will insist on Monday to go to tan endocrinologist. Thank you for the reassurance.
Helpful - 0
875426 tn?1325528416
Yes, I think you should insist on being referred to an endocrinologist.  I've never heard of it being normal to have the stimulation of your thyroid go down from pregnancy (not a doctor, but grad from vocational nursing school).  They should do a full endocrine work up on anything that can cause your symptoms.  

Not sure what more labs your doctor did, but the primary doc should check your potassium level if they haven't lately, to make sure it isn't low, which can cause muscle weakness and your ferritin level if they haven't lately, as low iron can also cause increased heart rate and shortness of breath (besides hyperthyroidism causing tachycardia).  It can also cause fatigue.  Your CBC doesn't have to be outside normal range for you to feel effects from low iron- speaking from experience!

And whichever doctor dismissed your symptoms prior to pregnancy as anxiety with ruling out medical causes ought to become your former doctor.
Helpful - 0
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