Clinical diagnosis; patient may be reluctant to share information that she had an unsafe abortion
Labs: CBC, blood type with Rh status, CMP, serum beta-hcg level, UA, blood cultures
Gram stain and culture of any vaginal discharge
Check coagulation panel to rule out DIC
Pelvic exam – look for signs of trauma to cervix or vagina
Pelvic ultrasound – check for intrauterine material, abdominal free fluid, pelvic abscess
CT or MRI – may show uterine emphysema or intraperitoneal air if uterine perforation has occurred
Septic abortion
The same abdominal pain differential as non-pregnant patients, plus:
Chorioamnionitis
Ectopic pregnancy
Postpartum endometritis
First trimester abortion
Placenta accreta
Complete abortion