Yes, TSH levels fluctuate: maximum values in the morning, minimum values in the evening. Therefore, the test is taken before 10 am.

Question 1

How to prepare for a TSH test?

Accepted Answer

Donate blood in the morning on an empty stomach. Avoid alcohol and stress for 2 days. Discuss taking hormonal medications with your doctor.

Question 2

Can TSH change throughout the day?

Accepted Answer

Yes, TSH levels fluctuate: maximum values ​​in the morning, minimum values ​​in the evening. Therefore, the test is taken before 10 am.

Question 3

What does high TSH mean with normal T4?

Accepted Answer

This is subclinical hypothyroidism - an early stage of the disorder. Requires observation and possible correction.

Question 4

How is TSH related to infertility?

Accepted Answer

Thyroid dysfunction disrupts hormonal balance, affecting ovulation. TSH >2.5 µIU/ml in pregnant women requires monitoring.

Question 5

Is it possible to normalize TSH without medications?

Accepted Answer

For minor deviations, a selenium/iodine diet and stress reduction sometimes help. But with obvious hypothyroidism, thyroxine is needed.

tsh

FAQ