title: Clinical policy: critical issues in the initial evaluation and management of patients presenting to the emergency department in early pregnancy.
mesh_terms: D000007:Abdominal Injuries / Q000175:diagnosis / Q000628:therapy; D000020:Abortifacient Agents, Nonsteroidal / Q000008:administration & dosage / Q000009:adverse effects; D000022:Abortion, Spontaneous / Q000175:diagnosis / Q000628:therapy; D000033:Abortion, Threatened / Q000175:diagnosis / Q000628:therapy; D006063:Chorionic Gonadotropin / Q000097:blood; D003937:Diagnosis, Differential; D004636:Emergency Service, Hospital; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007072:Immunoglobulin D; D008727:Methotrexate / Q000008:administration & dosage / Q000009:adverse effects; D011247:Pregnancy; D011248:Pregnancy Complications / Q000175:diagnosis / Q000628:therapy; D011271:Pregnancy, Ectopic / Q000097:blood / Q000175:diagnosis / Q000000981:diagnostic imaging; D012189:Retrospective Studies; D012204:Rh-Hr Blood-Group System; D013997:Time Factors; D014463:Ultrasonography
chemical_list: D000020:Abortifacient Agents, Nonsteroidal; D006063:Chorionic Gonadotropin; D007072:Immunoglobulin D; D012204:Rh-Hr Blood-Group System; D008727:Methotrexate