OB/GYN Student Study Guide

BP dec: systolic down 5 – 10/ diastolic down 10 – 15 until 24 weeks then slowly returns. Pulmonary: TV inc 30 – 40%. Minute Vent inc 30 – 40%. TLC dec 5% secondary to elevation of diaphragm. PA O2 and pa O2 inc; dec pA CO2 and pa CO2. GI: Nausea and vomiting in 70% - inc. estrogen, progesterone and HCG; resolves by 14 – 16 w ................
................