611. When does stage two of labor start and end? What is its duration? / Options for ancillary monitoring in labor / Indications for third trimester ultrasonography November 6th, 2008 by reuben in pregnancy Back Top Tags: card 610. How to distinguish between occiput anterior and occiput posterior / How may the lie of the fetus be determined on physical exam? / How is gestational age determined on physical exam? 612. Components of fetal heart tracings to be assessed / Define baseline heart rate / Two types of variability / Significance of variability Leave a Reply Cancel reply Please post any discussion to the emupdates Reddit page.