During this phenomenon (arrow mark), changes in hormone levels noted are,: (A) Increased estrogen, increased progesterone, (B) Decreased estrogen, increased progesterone, (C) Decreased estrogen, decreased progesterone, (D) Increased estrogen, decreased progesterone
Answer is D. Ans. (d) Increased estrogen, decreased progesterone(Ref: Ganong, 25th ed/p.403)LH surge happen 24 - 36 hrs before ovulationAt that time, there is increased estrogen, decreased progesterone.