system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
A previously healthy 32-year-old woman comes to the physician because of a 1-week history of progressively worsening cough with blood-tinged sputum, shortness of breath at rest, and intermittent left-sided chest pain. She has some mild vaginal bleeding since she had a cesarean delivery 6 weeks ago due to premature rupture of membranes and fetal distress at 38 weeks' gestation. She has been exclusively breastfeeding her child. Her temperature is 37°C (98.6°F), pulse is 95/min, respirations are 22/min, and blood pressure is 110/80 mm Hg. Breath sounds are decreased in the left lung base. The fundal height is 20 cm. Pelvic examination shows scant vaginal bleeding. Chest x-ray is shown. Further evaluation is most likely to reveal which of the following?
assistant
Increased serum β-HCG levels