title: Ectopic pregnancy: zero in on these lab and imaging clues.
abstract: Quantitative β-hCG measurements and transvaginal ultrasound findings interpreted in light of a β-hCG "cutoff" can reliably guide clinical decisions.
authors.affiliation: Department of Family Medicine, University of Michigan, Ann Arbor, MI, USA. sahoko@med.umich.edu
authors.forename: Sahoko H
authors.initials: SH
authors.lastname: Little
authors.forename: Pamela G
authors.initials: PG
authors.lastname: Rockwell
mesh_terms: D000020:Abortifacient Agents, Nonsteroidal / Q000627:therapeutic use; D000328:Adult; D015415:Biomarkers / Q000097:blood; D018997:Chorionic Gonadotropin, beta Subunit, Human / Q000097:blood*; D005260:Female; D006801:Humans; D008727:Methotrexate / Q000627:therapeutic use; D011247:Pregnancy; D011271:Pregnancy, Ectopic / Q000097:blood / Q000175:diagnosis* / Q000628:therapy; D012489:Salpingostomy; D016216:Ultrasonography, Prenatal
chemical_list: D000020:Abortifacient Agents, Nonsteroidal; D015415:Biomarkers; D018997:Chorionic Gonadotropin, beta Subunit, Human; D008727:Methotrexate