Page 207 - Demo

Question 38A 16-year-old girl presents with primary amenorrhea. On examination, she has normal secondary sexual characteristics. What is the most appropriate next step?A) Karyotype analysisB) Serum prolactin levelC) Pelvic ultrasoundD) Brain MRIE) Progesterone challenge testAnswer: C) Pelvic ultrasoundExplanation: In a patient with primary amenorrhea but normal secondary sexual characteristics, a pelvic ultrasound is the most appropriate next step to assess the presence and anatomy of the uterus and ovaries.