Table 1. Ultrasound (US) Diagnostic Categories and Management in Early Pregnancy.

This table summarizes the typical ultrasound findings and recommended approaches for various early pregnancy presentations

HCG: human chorionic gonadotropin

Diagnosis	Findings	Notes
Intra-uterine pregnancy	Clear intra-uterine pregnancy, relatively central fundal endometrial location	Caution: heterotopic and interstitial
Pregnancy of unknown location	Complete evaluation of the female pelvis and abdomen without intra-uterine pregnancy but no extra-uterine pregnancy, no complex mass, and no excessive or complex pelvic or peritoneal fluid	Close follow-up with repeat quantitative HCG and US
Ectopic pregnancy without rupture	Ectopic pregnancy without excessive or complex pelvic or peritoneal fluid	Review indications and contraindications for medical therapy
Ruptured ectopic pregnancy without frank hemoperitoneum or shock	Ectopic pregnancy with complex pelvic fluid but without frank hemoperitoneum	Operative management
Ruptured ectopic pregnancy with frank hemoperitoneum ± shock	Ectopic pregnancy with frank hemoperitoneum	Resuscitation plus operative management