A women presented with amenorrhea since 8 weeks, acute pain in abdomen & vaginal discharge. Which is the best investigation, if available, needed to be done to rule out ectopic pregnancy :-

Ectopic pregnancy Is one in which the feilized ovum is implanted & develops outside the normal endometrial cavity Site Tubal (most common) Ovarian Abdominal Cervical Common cause Salpingitis PID Contraception failure (IUCD ) Tubal ligation Presentation Abdominal pain Amenorrhea Vaginal bleeding Diagnosis hCG ( either in urine or serum ): to check doubling titres Transvaginal sonography; usual test to diagnose an ectopic pregnancy in the OPD Laparoscopy (confirmation) best test: This of course is not the first test to be done for the diagnosis. This is mostly done when the clinical and USG suspicion is almost sure and a laparoscopy hence is diagnostic as well as therapeutic intervention. Treatment Surgical or medical * Surgery could be done either by laparoscopy or laparotomy, either salpingotomy or salpingectomy