Which one of the following statements concerning maternal endocrine changes during the first 12 weeks (first trimester)of pregnancy is correct?

Question

Quizplus · Accepted Answer

TSH remains relatively unchanged during the first trimester of pregnancy. Cortisol levels increase during the first trimester, not decrease, due to its role in promoting fetal growth and development. Free thyroxine levels may increase slightly during the first trimester, as the thyroid gland adapts to increased demand, but may later decrease. 1,25-Dihydroxyvitamin D levels may increase during pregnancy to aid in fetal skeletal development.

Which One of the Following Statements Concerning Maternal Endocrine Changes