Inclusion Criteria:  more than 24 weeks of gestation who were diagnosed and classified as preeclampsia or gestational hypertension by the criteria recommends by the American College of Obstetricians and Gynecologists (ACOG)  Severe preeclampsia will be diagnosed by:  A systolic/diastolic blood pressure ≥ 140 mmHg occurring on two occasions at least 4 hours apart after 20 weeks of gestation a women whose blood pressure has previously been normal Proteinuria with excretion of 0.3 gm or more of protein in a 24 hour urine specimen or urine dipstick results of at least 1+(30 mg per deciliter) on two occasions  Exclusion Criteria:  chronic hypertension before pregnancy ,chronic kidney disease according to KDIGO criteria ,twin pregnancies,underlying diabetes mellitus  -