> 140/90 prior to 20 wks
chronic HTN (50% are primary)
new onset >140/90 after 20 wks w/ no proteinuria or end organ damage
gestational HTN
new onset HTN after 20 wks w/ proteinuria or end-organ damage
preeclampsia
new onset HTN after 20 wks w/ proteinuria or end-organ damage + seizures
eclampsia
chronic HTN + 1 of 1) proteinuria after 20 wks 2) worsening of HTN 3) end organ damage
chronic HTN w/ superimposed pre-eclampsia