Abmormal uterine bleeding has multiple causes. When a women presents and reports menstrual irregularity with amenorrhea , which is the most common cause of amenorrhea? A teenage patient presents with amenorrhea and normal secondary sex characteristics. A progesterone challenge is … The purpose is to determine the presence of A nurse practitioner is caring for a woman with primary and secondary amenorrhea. The pelvic exam was normal. Which of the following may … the cause if etiology originat...