Physiology Physiologic Changes of the Thyroid metabolism during Pregnancy includes all except A Increased levels of total T4 and T3 B Elevated levels of serum TBG C hCG acts at TSH receptor D TSH level is highest during the 1st trimester 💡 Explanation Physiologic Changes of the Thyroid metabolism during Pregnancy includes all except ✓ Correct Answer: D. TSH level is highest during the 1st trimester