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What Does The Following Thyroid Test Result Indicate?

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Posted on Sat, 27 Dec 2014
Question: hello dr...my wife's todats latest thyroid is t3=1.46...t4=17.80...and tsh=0.01...she is taking 75 mg since last 2 months.....and she has delivered a child 2 mobths ago....before 2 months she was taken 100 mg...as her dr told that after delivery she should take 75 mg till next report....plzz tell me is there anything to worry...thanksss
doctor
Answered by Dr. Shehzad Topiwala (1 hour later)
Brief Answer:
Thyroid

Detailed Answer:
There is no reason to panic.

She is receiving a moderately higher dose than her body needs. Your doctor advised the right thing......ie to reduce the dose after delivery of the baby.

When I see someone like you in my practice I typically lower the dose to 50 mcg and recheck the Free T4 and TSH in 6 weeks.

However it is important to note the range for Total T4 and Total T3 on the lab report that you have now. Various labs have differing methods to test the blood T4 levels. So it is important to go by the reference range for normal in individual labs. It appears to me that the Total T4 in this case is clearly above the upper limit of normal.

In any event, Free T4 is a better test and gives useful information about the thyroid dose replacement along with the TSH.

Kindly note that the TSH may take couple months to recover to normal. So do not be guided by the TSH alone. A free T4 reading in the range of normal after 6 weeks is a fairly reliable indicator that the 50 mcg levo thyroxine dose is adequate.
I strongly suggest you see a formally qualified Endocrinologist to manage this, as thyroid conditions can be challenging to manage.

Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar
doctor
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Follow up: Dr. Shehzad Topiwala (42 minutes later)
ok dr...thanks a lot....i have a appointment with dr tommorow....as u have said that there is no need to panic...i m feeling relaxed now....thanksss
doctor
Answered by Dr. Shehzad Topiwala (17 hours later)
Brief Answer:
Follow up

Detailed Answer:
You are welcome. Best wishes for good health always.
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
Dr.
Dr. Shehzad Topiwala

Endocrinologist

Practicing since :2001

Answered : 1663 Questions

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What Does The Following Thyroid Test Result Indicate?

Brief Answer: Thyroid Detailed Answer: There is no reason to panic. She is receiving a moderately higher dose than her body needs. Your doctor advised the right thing......ie to reduce the dose after delivery of the baby. When I see someone like you in my practice I typically lower the dose to 50 mcg and recheck the Free T4 and TSH in 6 weeks. However it is important to note the range for Total T4 and Total T3 on the lab report that you have now. Various labs have differing methods to test the blood T4 levels. So it is important to go by the reference range for normal in individual labs. It appears to me that the Total T4 in this case is clearly above the upper limit of normal. In any event, Free T4 is a better test and gives useful information about the thyroid dose replacement along with the TSH. Kindly note that the TSH may take couple months to recover to normal. So do not be guided by the TSH alone. A free T4 reading in the range of normal after 6 weeks is a fairly reliable indicator that the 50 mcg levo thyroxine dose is adequate. I strongly suggest you see a formally qualified Endocrinologist to manage this, as thyroid conditions can be challenging to manage.