Preeclampsia is a disorder of widespread vascular endothelial malfunction and vasospasm that occurs after 20 weeks' gestation and can present as late as 4-6 weeks' postpartum. It is clinically defined by as blood pressure ≥140 mmHg systolic and ≥90 mmHg diastolic diagnosed for the first time after 20 weeks' gestation together with >300mg proteinuria/24 hours.