Gynaecology & Obstetrics At what level of Beta-hCG is it that normal pregnancy can be earliest detected by TVS (transvaginal USG) : A 500 IU/ml B 1000 IU/ml C 1500 IU/ml D 2500 IU/ml 💡 Explanation At what level of Beta-hCG is it that normal pregnancy can be earliest detected by TVS (transvaginal USG) : ✓ Correct Answer: C. 1500 IU/ml