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What Does This TSH Test Result Indicate?

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Posted on Thu, 16 Jul 2015
Question: Hi, I'm 5 weeks pregnant after having FET. I have Hashimotos and just got my lab report back. My TSH is 1.25, Free t4 is 1.2 and Free T3 is 2.8. Are these numbers OK for 5 weeks pregnant?
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Answered by Dr. Shehzad Topiwala (53 minutes later)
Brief Answer:
Thyroid

Detailed Answer:
The thyroid labs look fine. Check on your lab report for normal ranges for free t4 during the different trimesters of pregnancy. If they are mentioned please share the ranges with me here. Tje idea behind this is that many labs use methods to check free T 4 that have not yet been formally applied to various stages of pregnancy. So they continue to report free t4 with ranges that are applicable to the non pregnant adult. In such circumstances one needs to go by Total T4 and Total T3 values with again pregnancy trimester associated ranges provided and if no ranges are provided for each stage of pregnancy then one can use 150% of the upper limit of normal for the non pregnant range as normal for pregnancy. This is particularly true during the second half of pregnancy. Are you in thyroid medication ?
Note: For more information on hormonal imbalance symptoms or unmanaged diabetes with other comorbid conditions, get back to us & Consult with an Endocrinologist. Click here to book an appointment.
Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar
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Answered by
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Dr. Shehzad Topiwala

Endocrinologist

Practicing since :2001

Answered : 1663 Questions

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What Does This TSH Test Result Indicate?

Brief Answer: Thyroid Detailed Answer: The thyroid labs look fine. Check on your lab report for normal ranges for free t4 during the different trimesters of pregnancy. If they are mentioned please share the ranges with me here. Tje idea behind this is that many labs use methods to check free T 4 that have not yet been formally applied to various stages of pregnancy. So they continue to report free t4 with ranges that are applicable to the non pregnant adult. In such circumstances one needs to go by Total T4 and Total T3 values with again pregnancy trimester associated ranges provided and if no ranges are provided for each stage of pregnancy then one can use 150% of the upper limit of normal for the non pregnant range as normal for pregnancy. This is particularly true during the second half of pregnancy. Are you in thyroid medication ?