Gynaecology & Obstetrics General 423417d8 Anita 15-year-old, complains of heavy periods since 2 months. O/E: wt 40 kg and BP 120/80 mmHg. All of the following investigations are indicated, except: A STSH B Platelet count C Bleeding and clotting time D Estradiol levels High-Yield Explanation No explanation provided.