Evaluation of sFlt-1/PlGF Ratio ,OPG and sEng as Predictive Biomarkers in the Diagnosis and Treatment Evaluation of Preeclampsia

This study is evaluating whether three blood markers — sFlt-1/PlGF ratio, OPG, and sEng — can predict and help diagnose preeclampsia, a serious blood pressure complication of pregnancy. Finding reliable blood tests to detect preeclampsia early could help doctors intervene sooner and protect both mother and baby. **You may be eligible if...** - You are pregnant, between 20 and 36 weeks of pregnancy - You are between 18 and 45 years old - You are attending antenatal (prenatal) care at the study site **You may NOT be eligible if...** - You had high blood pressure before pregnancy - You have kidney disease - You have diabetes - You are carrying more than one baby (multiple gestation) - You have an autoimmune disorder Talk to your doctor to see if this trial is right for you.