Ob: Uncomplicated Pregnancy Study Guide Graded A+

What gestational age range is considered preterm? {Ans: 20-36wk, 6d}Purpose of amniocentesis {Ans: *Elective* test to screen for genetic pathology in women *>35yo*, w/ prior OB Hx or family Hx of specific problems Can also screen for: -Fetal lung function -Fetal infection -Excess amniotic fluid -Paternity testing}Quickening is noticed b/w what weeks' gestation? {Ans: 16-24 weeks}Function of PTH during pregnancy {Ans: Increases blood Ca2+}Transvaginal USG can detect a gestational sac at what gestational age? {Ans: 4-5 weeks}Mechanisms of transport across placenta {Ans: Simple diffusion Facilitated diffusion Active transport Pinocytosis}