The abortion of a pregnancy is inevitable when any of the following symptoms are present:

• There is an obvious rupture of membranes
• An open cervix
• There is tissue in the cervix
• There is an absence of fetal heart at a βHCG level consistent with fetal heart activity

When any of these symptoms are detected, management involves conservative observation, monitoring for heavy bleeding and sepsis, and a dilatation and curettage (D&C).