Vaginal Bleeding 441404.A 40-year-old G1P0101 presents to the ED with suprapubic pain and
general malaise for the last 3 days without improvement. Her vitals are signif-
icant for HR of 115 beats per minute, BP of 100/60 mm Hg, and temperature
of 101°F. Upon physical examination, her abdomen is soft with significant
suprapubic tenderness to light palpation but no rebound or guarding. Her
pelvic examination reveals a scant amount of dark red vaginal blood and
yellow discharge. Her past medical history is significant for an emergent
cesarean section 2 weeks ago without any other gynecologic history. What is
the most likely diagnosis in this patient?
a. Uterine atony
b. Retained products of conception
c. Uterine inversion
d. Endometritis
e. Tubo-ovarian torsion