Review Question - QID 210041

A 34-year-old G1P0 woman presents to her obstetrician for follow-up after a spontaneous abortion. Two months prior, while at 16 weeks’ gestation, she developed vaginal bleeding with passage of products of conception. She underwent treatment with misoprostol at that time and stopped having vaginal bleeding after a few days. She reports that she feels well despite a minor cough and is currently on her menstrual period. Her past medical history is notable for obesity. She works as an accountant and drinks socially. Her temperature is 98.8°F (37.1°C), blood pressure is 130/75 mmHg, pulse is 85/min, and respirations are 20/min. On examination, dry rales are heard diffusely throughout the bilateral lungs. Beta human chorionic gonadotropin levels are 45,000 mIU/ml. A chest radiograph is shown in Figure A. Which of the following is the most appropriate treatment for this patient?