Evaluation of the Performance of a Rapid Pregnancy Diagnostic Test.

The most current gynecological consultations in emergency unit first lead to a pregnancy diagnostic test. The gold standard used is the diagnostic test based on determination of the β-human chorionic gonadotropin concentration. But this assay need time and expect women to wait for hours. A 5-minutes pregnancy diagnostic test has been developed in France. A 62-patients study showed that results obtained with the rapid test were correlated with results obtained with the test based on determination of the β-human chorionic gonadotropin concentration.

The purpose of this study is to evaluate the efficiency of the 5-minutes pregnancy diagnostic test realized in emergency room, in comparison with the blood determination of the β-human chorionic gonadotropin concentration which is only tested in medical laboratory. A little amount of total blood sample used for gold standard test will be used to assess sensibility, specificity, positive or negative predictive values of the rapid pregnancy diagnostic test.

Inclusion criteria

• Adult women who are in genital activity
• Women who are in emergency unit to consult for metrorrhagia and/or pelvic pains.
• Lack of intrauterine gestational sac determined using endo-vaginal ultrasound
• Women who need a diagnostic test using the β-human chorionic gonadotropin blood test.

Exclusion criteria

• Previous pregnancy diagnostic assessed using the β-human chorionic gonadotropin blood test.
• Patients included in an ovarian stimulation program for infertility
• Ectopic gestational sac in which there is an embryo with a cardiac activity determined with ultrasound.
• Patient objecting to participate in the study
• Minor
• Persons subject to major legal protection (safeguarding justice, guardianship, trusteeship), persons deprived of liberty.