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Is TSH Level Of 1.3 A Cause For Concern?

Posted on Wed, 10 May 2017

Question: Hi, I have been taking eltroxin 25mcg for one year. My last blood test eight weeks ago showed a TSH of 1.3, the lowest it has been. For the last week I have felt anxious and nervous and not feeling as well as I had been, I had been feeling great up to that. Could I be taking too much eltroxin now?

Answered by Dr. Mirjeta Guni (18 minutes later)

Brief Answer:
The TSH is normal:

Detailed Answer:
Hello,
Levothyroxine 25 mcg is the lowest recommended dose.
TSH 1.3 is within the normal ranges and it should be at these levels for your age.
So, i would suggest to continue with the same dose and check the TSH after 6 months.
Hope the information will help.
Kind regards.
Dr.Mirjeta

Above answer was peer-reviewed by : Dr. Vaishalee Punj

Follow up: Dr. Mirjeta Guni (13 minutes later)

That TSH was eight weeks ago. Is it possibe it has dropped further now? I have overactive symptoms.

My TSH was 3.5 in October 2016 and 1.3 in January 2017. Is it possible that it has reduced further now?

Answered by Dr. Mirjeta Guni (4 hours later)

Brief Answer:
The dose is too low to cause overdosage:

Detailed Answer:
Hi again,
The dose is low to cause hyperthyroidism in such a short time ( three months).
If, TSH has resulted normal and when there are no signs and symptoms of hypo/ hyperthyroidism the next control should be after 6 months.
If you insist to have symptoms of hyperthyroidism, even if the dose is low, you should check TSH to confirm it.
Regards,
Dr.Mirjeta

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Above answer was peer-reviewed by : Dr. Prasad