Is TSH Value Of 5.46 Normal While On Thyronorm?

Posted on Mon, 29 May 2017

Medically reviewed by Ask A Doctor - 24x7 Medical Review Team

Mon, 29 May 2017 Answered on

Sat, 17 Jun 2017 Last reviewed on

Question : I'm 12 week pregnant.... Initially I was taking Thyronorm 50 mcg .. last month TSH test was done and value was 5.56 after that doctor increased dosage to 62.5 mcg... but today I check TSH value is 5.46 ...there is no change in tsh value.... why TSH value dint reduce and does TSH value affect baby development

Answered by Dr. Minal Mohit (12 hours later)

Brief Answer:
you need FT4 in pregnancy.

Detailed Answer:
Dear Akshata, hi and welcome to HCM!
pregnancy is one time when you do not monitor your thyroxine dose by TSH, rather by FT4. TSH may be still low due to hcg homology, but FT4 needs to be maintained in high normal range. so please check your FT4 and let me know.
regards!

Above answer was peer-reviewed by : Dr. Kampana

Follow up: Dr. Minal Mohit (2 days later)

Hello doctor... I have attached the report of TSH, T4 and FT4... 4 days back doctor increased the dose of Thyronorm to 88mcg

Answered by Dr. Minal Mohit (1 hour later)

Brief Answer:
recheck every 4 weekly.

Detailed Answer:
Hi Akshata! fair enough. Report is good and dose increment is justified. so go ahead with it and repeat TSH and FT4 after 4 weeks and let me know .
regards!

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