Reproductive-aged women

Currently pregnant based on serum human chorionic gonadotropin level

Present for care for pregnancy due to vaginal bleeding and/or pelvic cramping

Final diagnosis of one of the following:

1. Live intrauterine pregnancy through 14 weeks, diagnosed by ultrasound demonstrating fetal heart motion

2. Diagnosed ectopic pregnancy

3. Ultrasound confirmation of a nonviable gestation (less 14 weeks) such as an anembryonic gestation or a fetal demise

Ectopic Pregnancy Biomarkers