Ectopic pregnancy: White cell count 15,000/μL, red cell count strikingly low if blood loss large, sedimentation rate slightly elevated
Threatened abortion: Negative β-hCG, white cell count 10,000-18,000/μL (rarely normal), red cell count normal, sedimentation rate slightly elevated
Acute PID/salpingitis: Negative β-hCG, white cell count 15,000-30,000/μL, red cell count normal, sedimentation rate markedly elevated
Ovarian cyst: Negative β-hCG, white cell count normal to 10,000/μL, red cell count normal, sedimentation rate normal
Spontaneous abortion: White cell count 15,000/μL, red cell count normal, sedimentation rate slightly to moderately elevated. Induced abortion: White cell count to 30,000/μL, red cell count normal, sedimentation rate slightly to moderately elevated