Problem: A 20-year-old female patient presents with lower abdominal pain, moderate vaginal bleeding, and right shoulder pain. Her blood pressure is 85/50 mmHg, pulse 140, respirations 28, and temperature 98 deg. F. She has a history of pelvic inflammatory disease (PID). Her urine pregnancy test is positive. Which of the following is the most likely diagnosis? Need Assignment Help? Threatened spontaneous abortion Abruptio placenta Ectopic pregnancy Placenta previa