ALB and hypertensive disorder: High BP occurring during pregnancy can be divided into four categories: 1) chronic HTN in pregnancy: existing HTN or taking antihypertensive medication before the 20th week of pregnancy; 2) gestational HTN: newly diagnosed HTN after the 20th week of pregnancy in the absence of proteinuria; 3) pre-eclampsia: HTN diagnosed after 20 weeks of pregnancy accompanied by proteinuria (albumin more than 300 mg in 24 h urine or urine albumin/creatinine ratio of 300 mg/g or greater); and 4) pre-eclampsia superimposed on chronic HTN: pre-eclampsia diagnosed in the chronic HTN pregnant women.